TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23 FEATURES 1 DESCRIPTION • High-Efficiency Synchronous Step-Down Converter With up to 95% Efficiency • 2.5-V to 6-V Input Voltage Range • Adjustable Output Voltage Range From 0.7 V to VI • Fixed Output Voltage Options Available • Up to 400-mA Output Current • 1.25-MHz Fixed Frequency PWM Operation • Highest Efficiency Over Wide Load Current Range Due to Power-Save Mode • 15 µA Typical Quiescent Current • Soft Start • 100% Duty Cycle Low-Dropout Operation • Dynamic Output-Voltage Positioning • Available in TSOT23 Package 2 The TPS6222x devices are a family of high-efficiency, synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail. With an output voltage range of 6 V down to 0.7 V and up to 400-mA output current, the devices are ideal for powering the low voltage TMS320™ DSP family and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1.25 MHz. At light load currents, the part enters the power-save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, the device achieves the highest efficiency over the entire load current range. The TPS6222x needs only three small external components. Together with the tiny TSOT23 package, a minimum system solution size can be achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors. APPLICATIONS • • • • • • • PDAs and Pocket PC Cellular Phones, Smart Phones OMAP™ and Low Power DSP Supply Digital Cameras Portable Media Players Portable Equipment WLAN PC Cards 100 95 C3 4.7 mF 1 2 3 VI SW 5 GND EN FB 90 L1 4.7 mH VO 1.5 V/400 mA R1 360 kW C1 22 pF R2 180 kW C2 100 pF 4 C4 10 mF Efficency − % TPS62220 VI 2.5 V to 6 V 85 80 VO = 1.8 V, L = 4.7 mH, CO = 22 mF VI = 2.7 V 75 70 65 60 VI = 3.7 V 55 50 Typical Application (Adjustible Output Voltage Version) 45 40 0.01 VI = 5 V 0.1 1 10 100 IL − Load Current − mA 1000 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. OMAP, TMS320 are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2003–2009, Texas Instruments Incorporated TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ORDERING INFORMATION TA OUTPUT VOLTAGE THIN-SOT23 PACKAGE Adjustable TPS62220DDC ALN 1.2 V TPS62227DDC BRZ 1.5 V TPS62221DDC ALO 1.6 V TPS62224DDC ALQ 1.7 V TPS62229DDC EJ 1.8 V TPS62222DDC APP 1.875 V TPS62228DDC EH 2.2 V TPS62225DDC NXY 2.3 V TPS62223DDC ALX -40 °C to 85 °C (1) (1) SYMBOL The DDC package is available in tape and reel. Add R suffix (TPS62220DDCR) to order quantities of 3000 parts. Add T suffix (TPS62220DDCT) to order quantities of 250 parts. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature (unless otherwise noted) VI Supply voltage on pin (1) (2) Voltages on pins SW, EN, FB (2) TPS6222x UNIT -0.3 to 7.0 V -0.3 to VI +0.3 V PD Continuous power dissipation See Dissipation Rating Table TJ Operating junction temperature range -40 to 150 °C Tstg Storage temperature -65 to 150 °C 260 °C Lead temperature (soldering, 10 sec) (1) (2) Stresses beyond those listed under "absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values are with respect to network ground terminal. DISSIPATION RATING TABLE (1) (1) PACKAGE TA≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING DDC 400 mW 4 mW/°C 220 mW 160 mW The thermal resistance junction to ambient of the 5-pin Thin-SOT23 is 250＝C/W. RECOMMENDED OPERATING CONDITIONS MIN NOM MAX VI Supply voltage 2.5 6 VO Output voltage range for adjustable output voltage version 0.7 VI IO Output current L Inductor 400 (1) V V mA µH 4.7 (1) UNIT µF CI Input capacitor TA Operating ambient temperature -40 85 °C TJ Operating junction temperature -40 125 °C (1) 2 4.7 See the application section for further information Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 ELECTRICAL CHARACTERISTICS VI = 3.6 V, VO = 1.8 V, IO = 200 mA, EN = VIN, TA = -40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VI Input voltage range 2.5 IQ Operating quiescent current IO = 0 mA, Device is not switching Shutdown supply current EN = GND Undervoltage lockout threshold 1.5 EN high level input voltage 1.3 6 V 15 25 µA 0.1 1 µA 2 V ENABLE V(EN) I(EN) V EN low level input voltage EN input bias current 0.4 V µA EN = GND or VIN 0.01 0.1 VI = VGS = 3.6 V 530 670 VI = VGS = 2.5 V 670 850 VI = VGS = 3.6 V 430 540 VI = VGS = 2.5 V 530 660 P-channel leakage current VDS = 6 V 0.1 1 N-channel leakage current VDS = 6 V P-channel current limit 2.5 V < VI < 6 V POWER SWITCH P-channel MOSFET on-resistance rDS(on) N-channel MOSFET on-resistance Ilkg I(LIM) mΩ mΩ µA 0.1 1 µA 600 670 880 mA 0.8 1.25 1.85 MHz 400 mA VIN V OSCILLATOR fS Switching frequency OUTPUT IO Output current VO Adjustable output voltage range Vref Reference voltage Feedback voltage, See TPS62220 0.7 TPS62220 VI = 3.6 V to 6 V, IO = 0 mA Adjustable VI = 3.6 V to 6 V, 0 mA ≤ IO ≤ 400 mA 0% 3% -3% 3% 0% 3% -3% 3% 0% 3% -3% 3% 500 (1) TPS62227 VI = 2.7 V to 6 V, IO = 0 mA 1.2 V VI = 2.7 V to 6 V, 0 mA ≤ IO ≤ 400 mA TPS62221 VI = 2.5 V to 6 V, IO = 0 mA 1.5 V VI = 2.5 V to 6 V, 0 mA≤ IO ≤ 400 mA VO Fixed output voltage TPS62224 VI = 2.5 V to 6 V, IO = 0 mA 1.6 V VI = 2.5 V to 6 V, 0 mA ≤ IO ≤ 400 mA 0% 3% -3% 3% TPS62229 VI = 2.5 V to 6 V, IO = 0 mA 1.7 V VI = 2.5 V to 6 V, 0 mA ≤ IO ≤ 400 mA 0% 3% -3% 3% 0% 3% -3% 3% 0% 3% -3% 3% 0% 3% -3% 3% 0% 3% -3% 3% TPS62222 VI = 2.5 V to 6 V, IO = 0 mA 1.8 V VI = 2.5 V to 6 V, 0 mA ≤ IO ≤ 400 mA TPS62228 VI = 2.5 V to 6 V, IO = 0 mA 1.875 V VI = 2.5 V to 6 V, 0 mA ≤ IO ≤ 400 mA TPS62225 VI = 2.7 V to 6 V, IO = 0 mA 2.2 V VI = 2.7 V to 6 V, 0 mA ≤ IO ≤ 400 mA TPS62223 VI = 2.7 V to 6 V, IO = 0 mA 2.3 V VI = 2.7 V to 6 V, 0 mA ≤ IO ≤ 400 mA (1) mV For output voltages ≤ 1.2 V, a 22 µF output capacitor value is required to achieve a maximum output voltage accuracy of 3% while operating in power-save mode (PFM mode). For output voltages ≥ 2 V, an inductor of 10 µH and an output capacitor of ≥ 10 µF is recommended. See the Application Information section for external components. Copyright © 2003–2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 3 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) VI = 3.6 V, VO = 1.8 V, IO = 200 mA, EN = VIN, TA = -40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER Ilkg TEST CONDITIONS MIN TYP MAX UNIT Line regulation VI = 2.5 V to 6 V, IO = 10 mA 0.26 Load regulation IO = 100 mA to 400 mA %/V Leakage current into SW pin VI > VO, 0 V ≤ V(SW) ≤ VI 0.1 1 µA Reverse leakage current into pin SW VI = open, EN = GND, V(SW) = 6 V 0.1 1 µA 0.0014 %/mA PIN ASSIGNMENTS DDC PACKAGE (TOP VIEW) VI 1 GND 2 EN 3 5 SW 4 FB Pin Functions PIN NAME NO. I/O DESCRIPTION EN 3 I This is the enable pin of the device. Pulling this pin to ground forces the device into shutdown mode. Pulling this pin to Vin enables the device. This pin must be terminated. FB 4 I This is the feedback pin of the device. Connect this pin directly to the output if the fixed output voltage version is used. For the adjustable version, an external resistor divider is connected to this pin. The internal voltage divider is disabled for the adjustable version. GND 2 SW 5 I/O VI 1 I 4 Ground Connect the inductor to this pin. This pin is the switch pin and is connected to the internal MOSFET switches. Supply voltage pin Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 FUNCTIONAL BLOCK DIAGRAM VI Current Limit Comparator + _ Undervoltage Lockout Bias Supply + _ Soft Start V I V(COMP) REF Skip Comparator REF 1.25 MHz Oscillator P-Channel Power MOSFET Sawtooth Generator Comparator S + _ R Driver Shoot-Through Logic Control Logic Comparator High SW N-Channel Power MOSFET Comparator Low Comparator Low 2 Load Comparator + _ Comparator High + Gm _ Comparator Low Comparator Low 2 EN R1 Compensation VREF = 0.5 V + _ R2 See Note FB GND NOTE: For the adjustable version (TPS62220) the internal feedback divider is disabled, and the FB pin is directly connected to the internal GM amplifier Copyright © 2003–2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 5 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS Table of Graphs FIGURE vs Load current Figure 1, Figure 2, Figure 3 vs Input voltage Figure 4 vs Input voltage Figure 5 Switching frequency vs Temperature Figure 6 Output voltage vs Output current Figure 7 rds(on) - P-channel switch, vs Input voltage Figure 8 rds(on) - N-Channel rectifier switch vs Input voltage η Efficiency IQ No load quiescent current fs Vo rds(on) Figure 9 Load transient response Figure 10 PWM mode operation Figure 11 Power-save mode operation Figure 12 Start-up Figure 13 EFFICIENCY vs LOAD CURRENT EFFICIENCY vs LOAD CURRENT 100 100 95 95 VI = 3.7 V 90 90 85 85 80 VI = 5 V Efficency - % Efficency - % 80 75 70 65 VI = 2.7 V 75 VI = 5 V 70 65 60 60 VI = 3.7 V 55 55 VO = 3.3 V, L = 4.7 µH, CO = 10 µF 50 45 40 0.01 6 VO = 1.8 V, L = 4.7 µH, CO = 22 µF 0.1 1 10 IL - Load Current - mA Figure 1. Submit Documentation Feedback 100 50 45 1000 40 0.01 0.1 1 10 IL - Load Current - mA Figure 2. 100 1000 Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 EFFICIENCY vs LOAD CURRENT EFFICIENCY vs INPUT VOLTAGE 100 100 VO = 1.5 V, L = 4.7 µH, CO = 10 µF 95 90 95 VO = 1.8 V, L = 4.7 µH, CO = 22 µF 85 Efficiency − % Efficency - % 80 IL = 1 mA VI = 2.7 V 75 VI = 5 V 70 65 60 VI = 3.7 V IL = 150 mA 90 85 IL = 300 mA 80 55 50 75 45 40 0.01 0.1 1 10 IL - Load Current - mA 100 70 2.5 1000 3.5 4 4.5 5 VI − Input Voltage − V Figure 3. Figure 4. NO LOAD QUIESCENT CURRENT vs INPUT VOLTAGE SWITCHING FREQUENCY vs TEMPERATURE 25 5.5 6 1190 1180 TA = 85°C 20 f − Switching Frequency − kHz N0 Load Quiescent Current − µ A 3 TA = 25°C 15 TA = −40°C 10 5 VI = 6 V VI = 3.6 V 1170 1160 VI = 2.5 V 1150 1140 0 2.5 3 3.5 4 4.5 5 5.5 6 1130 −40 −30 −20 −10 0 10 20 30 40 50 60 70 80 VI − Input Voltage − V TA − Temperature − °C Figure 5. Figure 6. Copyright © 2003–2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 7 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com OUTPUT VOLTAGE vs OUTPUT CURRENT rds(on) P-CHANNEL SWITCH vs INPUT VOLTAGE 1.55 0.8 0.7 rds(on) - P-Channel Switch - Ω VO − Outrput Voltage − V 1.53 PFM Mode 1.51 PWM Mode 1.49 1.47 TA = 85°C 0.6 TA = 25°C 0.5 TA = -40°C 0.4 0.3 1.45 0 50 0.2 2.5 IO − Output Current − mA 3.5 4 4.5 5 VI - Input Voltage - V Figure 7. Figure 8. rds(on) N-CHANNEL SWITCH vs INPUT VOLTAGE LOAD TRANSIENT RESPONSE 100 150 200 250 300 rDS(on) N-Channel Switch — Ω 0.8 5.5 6 VI = 3.6 V, VO = 1.5 V, L = 4.7 µH, CO =10 µF, Load Step 50 mA to 390 mA transient 0.7 VO 100 mV/div 0.6 TA = 85°C 0.5 TA = 25°C 0.4 TA = −40°C IL 200 mA/div 0.3 0.2 2.5 8 3 3 3.5 4 4.5 5 VI − Input Voltage − V Figure 9. Submit Documentation Feedback 5.5 6 200 µs/div Figure 10. Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 PWM MODE OPERATION POWER-SAVE MODE OPERATION VI = 3.6 V, VO = 1.5 V VSW 5 V/div VSW, 5 V/div VO 20 mV/div VO, 20 mV/div VI = 3.6 V, VO = 1.5 V, IO = 400 mA IL 200 mA/div IL, 200 mA/div 5 µs/div Figure 12. 250 ns/div Figure 11. START-UP Enable 2 V/div VO 1 V/div Ii 200 mA/div VI = 3.6 V, VO = 1.5 V, IO = 380 mA 250 µs/div Figure 13. Copyright © 2003–2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 9 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com DETAILED DESCRIPTION OPERATION The TPS6222x is a synchronous step-down converter operating with typically 1.25-MHz fixed frequency pulse width modulation (PWM) at moderate to heavy load currents and in power-save mode operating with pulse frequency modulation (PFM) at light load currents. During PWM operation, the converter uses a unique fast response, voltage mode, controller scheme with input voltage feed forward. This achieves good line and load regulation and allows the use of small ceramic input and output capacitors. At the beginning of each clock cycle initiated by the clock signal (S), the P-channel MOSFET switch is turned on, and the inductor current ramps up until the comparator trips and the control logic turns off the switch. The current limit comparator also turns off the switch in case the current limit of the P-channel switch is exceeded. Then, the N-channel rectifier switch is turned on and the inductor current ramps down. The next cycle is initiated by the clock signal, again turning off the N-channel rectifier and turning on the P-channel switch. The GM amplifier and input voltage determines the rise time of the sawtooth generator; therefore, any change in input voltage or output voltage directly controls the duty cycle of the converter. This gives a very good line and load transient regulation. POWER-SAVE MODE OPERATION As the load current decreases, the converter enters the power-save mode operation. During power-save mode, the converter operates with reduced switching frequency in PFM mode and with a minimum quiescent current to maintain high efficiency. Two conditions allow the converter to enter the power-save mode operation. One is when the converter detects discontinuous conduction mode. The other is when the peak switch current in the P-channel switch goes below the skip current limit. The typical skip current limit can be calculated as: I v 66 mA ) Vin skip 160 W During the power-save mode, the output voltage is monitored with the comparator (comp) by the thresholds comp low and comp high. As the output voltage falls below the comp low threshold set to 0.8% typical above Vout, the P-channel switch turns on. The P-channel switch is turned off as the peak switch current is reached. The typical peak switch current can be calculated: I + 66 mA ) Vin peak 80 W The N-channel rectifier is turned on and the inductor current ramps down. As the inductor current approaches zero, the N-channel rectifier is turned off and the P-channel switch is turned on again, starting the next pulse. The converter continues these pulses until the comp high threshold (set to typically 1.6% above Vout) is reached. The converter enters a sleep mode, reducing the quiescent current to a minimum. The converter wakes up again as the output voltage falls below the comp low threshold. This control method reduces the quiescent current typically to 15 µA and reduces the switching frequency to a minimum, thereby achieving high converter efficiency at light load. Setting the skip current thresholds to typically 0.8% and 1.6% above the nominal output voltage at light load current results in a dynamic output voltage achieving lower absolute voltage drops during heavy load transient changes. This allows the converter to operate with a small output capacitor of just 10 µF and still have a low absolute voltage drop during heavy load transient changes. See Figure 14 for detailed operation of the power-save mode. 10 Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 PFM Mode at Light Load 1.6% Comparator High 0.8% Comparator Low VO Comparator Low 2 PWM Mode at Medium to Full Load Figure 14. Power-Save Mode Thresholds and Dynamic Voltage Positioning The converter enters the fixed frequency PWM mode again as soon as the output voltage falls below the comp low 2 threshold. DYNAMIC VOLTAGE POSITIONING As described in the power-save mode operation sections and as detailed in Figure 14, the output voltage is typically 0.8% above the nominal output voltage at light load currents, as the device is in power-save mode. This gives additional headroom for the voltage drop during a load transient from light load to full load. During a load transient from full load to light load, the voltage overshoot is also minimized due to active regulation by turning on the N-channel rectifier switch. DIGITAL SELF-CALIBRATION In addition to the control circuit as shown in the block diagram, the TPS6222x series uses an internal digital self-calibration of the output voltage to minimize DC load and line regulation. This method of self-calibration allows simple internal loop compensation without the use of external components. The device monitors the output voltage and as soon as the output voltage drops below typically 1.6% or exceeds typically 1.6% of Vout the duty cycle will be adjusted in digital steps. As a result, the output voltage changes in digital steps either up or down where one step is typically 1% of Vout. This results in virtually zero line and load regulation and keeps the output voltage tolerance within ±3% overload and line variations. SOFT START The TPS6222x has an internal soft-start circuit that limits the inrush current during start-up. This prevents possible voltage drops of the input voltage in case a battery or a high impedance power source is connected to the input of the TPS6222x. The soft start is implemented as a digital circuit increasing the switch current in steps of typically 83 mA, 167 mA, 335 mA and then the typical switch current limit of 670 mA. Therefore, the start-up time mainly depends on the output capacitor and load current. Copyright © 2003–2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 11 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com LOW DROPOUT OPERATION 100% DUTY CYCLE The TPS6222x offers a low input to output voltage difference, while still maintaining operation with the 100% duty cycle mode. In this mode, the P-channel switch is constantly turned on. This is particularly useful in battery-powered applications to achieve longest operation time by taking full advantage of the whole battery voltage range. The minimum input voltage to maintain regulation, depending on the load current and output voltage, can be calculated as: ( VImin = VOmax + IOmax x rDS(on)max + RL ) where: • IO, max = maximum output current plus indicator ripple current • rDS(on), max = maximum P-channel switch rDS(on) • RL = dc resistance of the inductor • VO, max = normal output voltage plus maximum output voltage tolerance ENABLE Pulling the enable low forces the part into shutdown, with a shutdown quiescent current of typically 0.1 µA. In this mode, the P-channel switch and N-channel rectifier are turned off, the internal resistor feedback divider is disconnected, and the whole device is in shutdown mode. If an output voltage, which could be an external voltage source or super capacitor, is present during shutdown, the reverse leakage current is specified under electrical characteristics. For proper operation, the enable pin must be terminated and must not be left floating. Pulling the enable high starts up the TPS6222x with the soft start as previously described. UNDERVOLTAGE LOCKOUT The undervoltage lockout circuit prevents the device from misoperation at low input voltages. It prevents the converter from turning on the switch or rectifier MOSFET under undefined conditions. 12 Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 APPLICATION INFORMATION OUTPUT FILTER DESIGN (INDUCTOR AND OUTPUT CAPACITOR) The TPS6222x series of step-down converter has internal loop compensation. Therefore, the external L-C filter has to be selected to work with the internal compensation. This is especially important for the fixed output voltage version. The adjustable output voltage version allows external capacitors across the feedback divider resistors. This allows higher flexibility of the output filter selection when using the adjustable output voltage device TPS62220. Fixed Output Voltage Version The internal compensation is optimized to operate with an output filter of L = 10 µH and CO = 10 µF. Such an output filter has its corner frequency at: 1 1 ƒc + + + 15.9 kHz Ǹ 2p ǸL C 2p 10 mH 10 mF O with L = 10 µH, CO = 10 µF As a general rule of thumb, the product L×C should not move over a wide range when selecting a different output filter. This is because the internal compensation is designed to work with a certain output filter corner frequency as calculated above. This is especially important when selecting smaller inductor or capacitor values that move the corner frequency to higher frequencies. However, when selecting the output filter a low limit for the inductor value exists due to other internal circuit limitations. For the TPS6222x series the minimum inductor value should be kept at 4.7µH. Selecting a larger output capacitor value is less critical because the corner frequency moves to lower frequencies causing fewer stability problems. The possible output filter combinations are listed in Table 1: Table 1. Output Filter Combinations for Fixed Output Voltage Versions VO L CO ≤2V 4.7 µH ≥ 22 µF (ceramic capacitor) ≤2V 6.8 µH ≥ 22 µF (ceramic capacitor) ≤2V 10 µH ≥ 10 µF (ceramic capacitor) >2V 10 µH 10 µF (ceramic capacitor) Adjustable Output Voltage Version When the adjustable output voltage version TPS62220 is used, the output voltage is set by the external resistor divider. See Figure 15. The output voltage is calculated as V out + 0.5 V 1 ) R1 R2 ǒ Ǔ with R1 + R2 ≤ 1 MΩ and internal reference voltage Vref,typ = 0.5 V For stability, R1 + R2 should not be greater than 1 MΩ. To keep the operating quiescent current to a minimum, the feedback resistor divider should have high impedance with R1 + R2 ≤ 1 MΩ. In general, for the adjustable output voltage version, the same stability considerations are valid as for the fixed output voltage version. Because the adjustable output voltage version uses an external feedback divider, it is possible to adjust the loop gain using external capacitors across the feedback resistors. This allows a wider selection of possible output filter components. This is shown in Figure 16. R1 and C1 places a zero in the loop and R2 and C2 places a pole in the loop. The zero is calculated as: 1 1 C1 + + 2 p ƒ R1 2 p 22 kHz R1 Z with R1 = upper resistor of voltage divider, C1 = upper capacitor of voltage divider Copyright © 2003–2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 13 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com The pole is calculated as: 1 C2 + + 2 p ƒ R2 2 P 1 8 kHz p R2 with R2 = lower resistor of voltage divider and C2 = lower capacitor of voltage divider. For an output filter combination of L = 4.7 µH and CO = 10 µF, C1 and C2 must be selected to place a zero at 22 kHz, and a pole at 8 kHz. Choose components close to the calculated values. Table 2. Compensation Selection L CO fZ fP 4.7 µH 10 µF, 22 µF 22 kHz 8 kHz TPS62220 VI 2.5 V − 6 V C3 4.7 µF VI SW R1 470k GND EN L1 4.7 µH C1 15 pF C4 10 µF VO 1.8 V / 400 mA FB R2 180k C2 100 pF Figure 15. Typical Application Circuit for the TPS62220 With Adjustable Output Voltage INDUCTOR SELECTION For high efficiencies, the inductor should have a low dc resistance to minimize conduction losses. Especially at high-switching frequencies the core material has a higher impact on efficiency. When using small chip inductors, the efficiency is reduced mainly due to higher inductor core losses. This needs to be considered when selecting the appropriate inductor. The inductor value determines the inductor ripple current. The larger the inductor value, the smaller the inductor ripple current and the lower the conduction losses of the converter. Conversely, larger inductor values cause a slower load transient response. To avoid saturation of the inductor, the inductor should be rated at least for the maximum output current of the converter plus the inductor ripple current that is calculated as: VO 1 DIL VI ILmax = IOmax + DIL = VO x 2 L x f where: • f = switching frequency (1.25-MHz typical, 800-kHz minimal) • L = inductor value • ΔIL = peak-to-peak inductor ripple current • IL,max = maximum inductor current The highest inductor current occurs at maximum Vin. A more conservative approach is to select the inductor current rating just for the maximum switch current of 880 mA. SeeTable 3 for inductor selection. 14 Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 Table 3. Inductor Selection INDUCTOR VALUE COMPONENT SUPPLIER DIMENSIONS 4.7 µH Sumida CDRH2D18/LD 4R7 3,2 mm × 3,2 mm × 2, 0 mm 4.7 µH Murata LQH3C4R7M24 3,2 mm × 2,5 mm × 2, 0 mm 4.7 µH Taiyo Yuden LBC2518 4R7 2,5 mm × 1,8 mm × 1,8 mm 4.7 µH Sumida CMD4D11 4R7 4,4 mm × 5,8 mm × 1,2 mm 4.7 µH Sumida CMD4D08 4R7 6,3 mm × 5,8 mm × 1, 0 mm 4.7 µH Sumida CLSD09 4R7 4,9 mm × 4,9 mm × 1, 0 mm 4.7 µH TDK VLF3010AT 4R7 2,8 mm × 2,6 mm × 1, 0 mm 6.8 µH Sumida CDRH3D16 6R8 4,0 mm × 4,0 mm × 1,8 mm 6.8 µH Sumida CMD4D11 4R7 4,0 mm × 5,8 mm × 1,2 mm 10 µH Murata LQH4C100K04 4,5 mm × 3,2 mm × 2, 6 mm 10 µH Sumida CDRH3D16 100 4,0 mm × 4,0 mm × 1,8 mm 10 µH Sumida CLS4D14 100 4,9 mm × 4,9 mm × 1,5 mm INPUT CAPACITOR SELECTION Because buck converters have a pulsating input current, a low ESR input capacitor is required. This results in the best input voltage filtering, minimizing the interference with other circuits caused by high input voltage spikes. Also, the input capacitor must be sufficiently large to stabilize the input voltage during heavy load transients. For good input voltage filtering, usually a 4.7 µF input capacitor is sufficient. It can be increased without any limit for better input-voltage filtering. Ceramic capacitors show better performance because of the low ESR value, and they are less sensitive against voltage transients and spikes compared to tantalum capacitors. Place the input capacitor as close as possible to the input and GND pin of the device for best performance (see Table 4 for capacitor selection). OUTPUT CAPACITOR SELECTION The advanced fast response voltage mode control scheme of the TPS6222x allows the use of tiny ceramic capacitors with a minimum value of 10 µF without having large output voltage under and overshoots during heavy load transients. Ceramic capacitors with low ESR values have the lowest output voltage ripple and are recommended. If required, tantalum capacitors may be used as well (see Table 4 for capacitor selection). At nominal load current, the device operates in power-save mode, and the output voltage ripple is independent of the output capacitor value. The output voltage ripple is set by the internal comparator thresholds. The typical output voltage ripple is 1% of the output voltage VO. Table 4. Capacitor selection CAPACITOR VALUE CASE SIZE 4.7 µF 0603 Contact TDK 4.7 µF 0805 Taiyo Yuden JMK212BY475MG 10 µF 0805 Taiyo Yuden JMK212BJ106MG TDK C12012X5ROJ106K 22 µF 0805 1206 Contact TDK Taiyo Yuden JMK316BJ226 Copyright © 2003–2009, Texas Instruments Incorporated COMPONENT SUPPLIER Submit Documentation Feedback Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 15 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com Layout Considerations For all switching power supplies, the layout is an important step in the design, especially at high-peak currents and switching frequencies. If the layout is not carefully done, the regulator shows stability problems as well as EMI problems. Therefore, use wide and short traces for the main current paths, as indicated in bold in Figure 16. The input capacitor, as well as the inductor and output capacitor, should be placed as close as possible to the IC pins. In particular, the input capacitor needs to be placed as close as possible to the IC pins, directly across the Vin and GND pin. The feedback resistor network must be routed away from the inductor and switch node to minimize noise and magnetic interference. To further minimize noise from coupling into the feedback network and feedback pin, the ground plane or ground traces must be used for shielding. This becomes important especially at high switching frequencies of 1.25 MHz. L1 4.7 µH TPS62220 VI 2.5 V − 6 V VI C1 4.7 µF VO 1.8 V / 400 mA SW GND EN R1 C1 R2 C2 FB C2 10 µF Figure 16. Layout Diagram Typical Applications TPS62220 VI 3.6 V to 6 V 1 C3 10 µF 2 3 VI SW 5 GND EN FB L1 10 µH R1 680 kΩ C1 10 pF R2 120 kΩ C2 150 pF C4 10 µF VO 3.3 V/400 mA 4 Figure 17. LI-Ion to 3.3-V Conversion TPS62220 VI 2.7 V to 6 V C3 4.7 µF 1 2 3 VI SW 5 GND EN FB L1 10 µH R1 510 kΩ C1 15 pF R2 130 kΩ C2 150 pF C4 10 µF VO 2.5 V/400 mA 4 Figure 18. LI-Ion to 2.5-V Conversion 16 Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 TPS62220 VI 2.5 V to 6 V 1 C3 4.7 µF 2 3 VI SW 5 GND EN FB L1 4.7 µH R1 470 kΩ C1 15 pF R2 180 kΩ C2 100 pF C4 10 µF VO 1.8 V/400 mA 4 Figure 19. LI-Ion to 1.8-V Conversion TPS62220 VI 2.5 V to 6 V 1 C3 4.7 µF 2 3 VI SW 5 GND EN FB L1 4.7 µH R1 360 kΩ C1 22 pF R2 180 kΩ C2 100 pF C4 10 µF VO 1.5 V/400 mA 4 Figure 20. LI-Ion to 1.5-V Conversion TPS62220 VI 2.5 V to 6 V 1 C3 4.7 µF 2 3 VI SW 5 GND EN FB L1 4.7 µH R1 330 kΩ C1 22 pF R2 240 kΩ C2 100 pF C4 10 µF VO 1.2 V/400 mA 4 Figure 21. LI-Ion to 1.2-V Conversion TPS62221 VI 2.5 V to 6 V C1 4.7 µF 1 2 3 VI SW 5 VO 1.5 V/400 mA C2 22 µF GND EN L1 4.7 µH FB 4 Figure 22. Li-Ion to 1.5-V Conversion, Fixed Output Voltage Version Copyright © 2003–2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 17 TPS62220,, TPS62221,, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009....................................................................................................................................... www.ti.com TPS62223 VI 2.5 V to 6 V C1 4.7 µF 1 2 3 VI SW 5 VO 2.3 V/400 mA C2 10 µF GND EN L1 10 µH FB 4 Figure 23. Li-Ion to 2.3-V Conversion, Fixed Output Voltage Version 18 Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62220 TPS62221 TPS62222 TPS62223 TPS62224 TPS62225 TPS62227 TPS62228 TPS62229 PACKAGE OPTION ADDENDUM www.ti.com 24-Feb-2009 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty TPS62220DDCR ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62220DDCRG4 ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62220DDCT ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62220DDCTG4 ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62221DDCR ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62221DDCRG4 ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62221DDCT ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62221DDCTG4 ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62222DDCR ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62222DDCRG4 ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62222DDCT ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62222DDCTG4 ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62223DDCR ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62223DDCRG4 ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62223DDCT ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62223DDCTG4 ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62224DDCR ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62224DDCRG4 ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62224DDCT ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62224DDCTG4 ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62225DDCR ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62225DDCT ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62227DDCR ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62227DDCRG4 ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62227DDCT ACTIVE SOT DDC 5 250 CU NIPDAU Level-1-260C-UNLIM Addendum-Page 1 Green (RoHS & no Sb/Br) Lead/Ball Finish MSL Peak Temp (3) PACKAGE OPTION ADDENDUM www.ti.com 24-Feb-2009 Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty TPS62227DDCTG4 ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62228DDCR ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62228DDCRG4 ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62228DDCT ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62228DDCTG4 ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62229DDCR ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62229DDCRG4 ACTIVE SOT DDC 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62229DDCT ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS62229DDCTG4 ACTIVE SOT DDC 5 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 21-Feb-2009 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing TPS62220DDCR SOT DDC 5 SPQ Reel Reel Diameter Width (mm) W1 (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3000 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62220DDCT SOT DDC 5 250 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62221DDCR SOT DDC 5 3000 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62221DDCT SOT DDC 5 250 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62222DDCR SOT DDC 5 3000 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62222DDCT SOT DDC 5 250 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62223DDCR SOT DDC 5 3000 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62223DDCT SOT DDC 5 250 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62224DDCR SOT DDC 5 3000 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62224DDCT SOT DDC 5 250 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62225DDCR SOT DDC 5 3000 180.0 8.4 3.1 3.05 1.1 4.0 8.0 Q3 TPS62227DDCR SOT DDC 5 3000 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62227DDCT SOT DDC 5 250 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62228DDCR SOT DDC 5 3000 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62228DDCT SOT DDC 5 250 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62229DDCR SOT DDC 5 3000 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 TPS62229DDCT SOT DDC 5 250 180.0 9.2 3.1 3.05 1.1 4.0 8.0 Q3 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 21-Feb-2009 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS62220DDCR SOT DDC 5 3000 180.0 180.0 85.0 TPS62220DDCT SOT DDC 5 250 180.0 180.0 85.0 TPS62221DDCR SOT DDC 5 3000 180.0 180.0 85.0 TPS62221DDCT SOT DDC 5 250 180.0 180.0 85.0 TPS62222DDCR SOT DDC 5 3000 180.0 180.0 85.0 TPS62222DDCT SOT DDC 5 250 180.0 180.0 85.0 TPS62223DDCR SOT DDC 5 3000 180.0 180.0 85.0 TPS62223DDCT SOT DDC 5 250 180.0 180.0 85.0 TPS62224DDCR SOT DDC 5 3000 180.0 180.0 85.0 TPS62224DDCT SOT DDC 5 250 180.0 180.0 85.0 TPS62225DDCR SOT DDC 5 3000 202.0 201.0 28.0 TPS62227DDCR SOT DDC 5 3000 180.0 180.0 85.0 TPS62227DDCT SOT DDC 5 250 180.0 180.0 85.0 TPS62228DDCR SOT DDC 5 3000 180.0 180.0 85.0 TPS62228DDCT SOT DDC 5 250 180.0 180.0 85.0 TPS62229DDCR SOT DDC 5 3000 180.0 180.0 85.0 TPS62229DDCT SOT DDC 5 250 180.0 180.0 85.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Amplifiers Data Converters DLP® Products DSP Clocks and Timers Interface Logic Power Mgmt Microcontrollers RFID RF/IF and ZigBee® Solutions amplifier.ti.com dataconverter.ti.com www.dlp.com dsp.ti.com www.ti.com/clocks interface.ti.com logic.ti.com power.ti.com microcontroller.ti.com www.ti-rfid.com www.ti.com/lprf Applications Audio Automotive Broadband Digital Control Medical Military Optical Networking Security Telephony Video & Imaging Wireless www.ti.com/audio www.ti.com/automotive www.ti.com/broadband www.ti.com/digitalcontrol www.ti.com/medical www.ti.com/military www.ti.com/opticalnetwork www.ti.com/security www.ti.com/telephony www.ti.com/video www.ti.com/wireless Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2009, Texas Instruments Incorporated