PT5820 Series 16-A 12-V Input Adjustable Integrated Switching Regulator SLTS172 (Released 8/23/2002) Features • • • • • • • 12V Input DSP Compatible High Efficiency (90+%) Output Margin Control (±5%) Adjustable Output Voltage On/Off Enable Function Over-Current Protection • Thermal Shutdown • Low-Profile (8mm) • Small Footprint (0.736 in², Suffix ‘N’) • Solderable Copper Case • Surface Mount Compatible Description Ordering Information The PT5820 Excalibur™ series of integrated switching regulators (ISRs) combines outstanding power density with a comprehensive list of features. They are an ideal choice for applications where board space is a premium and performance cannot be compromised. These modules provide a full 16A of output current, yet are housed in a low-profile, 18-pin, package. The integral copper case construction requires no heatsink, and offers the advantages of solderability and a small footprint (0.736 in² for suffix ‘N’). Both through-hole and surface mount pin configurations are available. The PT5820 series operates from a 12-V input bus and provides a convenient point-of-load power source for the industry’s latest high-performance DSPs and microprocessors. The series includes output voltage options as low as 1.0VDC. Other features include external output voltage adjustment, a ±5% margin control, on/off enable, short circuit protection, and thermal shutdown. A 560-µF input capacitor and 330µF output capacitor are required for proper operation. PT5827H PT5821H PT5822H PT5823H PT5824H PT5825H PT5826H Pin-Out Information Pin Function = 5.0 Volts = 3.3 Volts = 2.5 Volts = 1.8 Volts = 1.5 Volts = 1.2 Volts = 1.0 Volts 1 Vo Adjust 2 3 Inhibit * Margin Down 4 Margin Up 5 Vin 6 7 Vin Vin 8 Sense(–) 9 GND Package Code 10 11 GND GND (EPP) (EPQ) (EPS) 12 GND 13 GND 14 15 Vout Vout 16 Vout 17 Vout 18 Sense(+) PT Series Suffix (PT1234 x ) Case/Pin Configuration Vertical Horizontal SMD Order Suffix N A C (Reference the applicable package code drawing for the dimensions and PC board layout) * For Inhibit pin: Open = output enabled Ground = output disabled Standard Application Margin Down Margin Up Sense(+) Vo Adjust 5, 6, 7 VIN Inhibit + CIN 560µF (Required) 4 3 18 2 9–13 VOUT 14–17 PT5820 8 COUT 330µF (Required) + 1 L O A D Sense(–) GND GND Cin = Required 560µF Cout = Required 330µF (Note 3) For technical support and more information, see inside back cover or visit www.ti.com PT5820 Series 16-A 12-V Input Adjustable Integrated Switching Regulator Performance Specifications (Unless otherwise stated, T a =25°C, V in =12V, Cin =560µF, C out =330µF, and Io =Iomax) Characteristics Symbols Output Current Input Voltage Range Set-Point Voltage Tolerance Temperature Variation Line Regulation Load Regulation Total Output Variation Io Vin Vo tol ∆Regtemp ∆Regline ∆Regload ∆Regtot Efficiency η Vo Ripple (pk-pk) Transient Response Over-Current Threshold Output Voltage Adjust Vr ttr ∆Vtr ITRIP Vo adj Switching Frequency Inhibit Control (pin 2) Input High Voltage Input Low Voltage Input Low Current ƒs Standby Input Current External Input Capacitance External Output Capacitance Operating Temperature Range Over-Temperature Shutdown Iin standby Cin Cout Ta OTP Storage Temperature Reliability Ts MTBF VIH VIL IIL Mechanical Shock Mechanical Vibration Weight Flammability — — Conditions Min Over Io range –40°C <Ta < +85°C Over Vin range Over Io range Includes set-point, line, load, –40°C ≤ T a ≤ +85°C PT5827 (5.0V) PT5821 (3.3V) PT5822 (2.5V) PT5823 (1.8V) PT5824 (1.5V) PT5825 (1.2V) PT5826 (1.0V) 20MHz bandwidth 1A/µs load step, 50% to 100% I omax, Recovery Time Vo over/undershoot Reset, followed by auto-recovery with Vo Adjust with Margin Up/Down Over Vin and Io ranges Referenced to GND (pins 9–13) Pin 2 to GND Pin 2 to GND Over Vin range Center of case, auto-reset Vo ≥3.3V Vo ≤2.5V — Per Bellcore TR-332 50% stress, Ta =40°C, ground benign Mil-STD-883D, Method 2002.3 Half Sine, mounted to a fixture Mil-STD-883D, Method 2007.2, Vertical 20-2000 Hz, PCB mounted Horizontal — Materials meet UL 94V-0 PT5820 Series Typ Max Units 0 10.8 — — — — — — — ±0.5 ±6 ±12 16 13.2 ±2 — — — A V %Vo %Vo mV mV — — ±3 %Vo — — — — — — — — 93 90 88 84 82 80 77 20 — — — — — — — — % — — — — — 300 50 70 22 ±10 ±5 350 — — — — — 400 Vin –0.5 –0.2 — — 560 (2) 330 (3) –40 — — -40 — — –0.5 2 — — — TBD TBD — Open (1) 0.8 — — — TBD +85 (4) — — +125 6.3 — — 106 Hrs — TBD — G’s — — TBD (5) 20 — — G’s grams mVpp µSec mV A % kHz V mA mA µF µF °C °C °C Notes: (1) The Inhibit control (pin 2) has an internal pull-up to 12V (Vin ), and if left open-circuit the module will operate when input power is applied. A small low-leakage (<100nA) MOSFET is recommended to control this input. See application notes for more information. (2) A 560µF electrolytic input capacitor is required for proper operation. The capacitor must be rated for a minimumm of 1.3Arms of ripple current. For further information, consult the related application note on capacitor selection. (3) An external 330µF output capacitor is required for proper operation. Distributed load capacitance can be included in this value. (4) See SOA curves or consult factory for the appropriate derating. (5) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing. For technical support and more information, see inside back cover or visit www.ti.com PT5820 Series 16-A 12-V Input Adjustable Integrated Switching Regulator Pin Descriptions +Vin: The positive supply voltage input for the module with respect to the common GND. +Vo: This is the regulated output voltage from the module with respect to the common GND. GND: The common GND node to which the input, output, and external control signals are referenced. Sense(–): Provides the regulator with the ability to sense the set-point voltage directly across the load. For optimum output voltage accuracy this pin should always be connected to GND, even for applications that demand a relatively light load. Sense(+): When used with Sense(–), the regulation circuitry will compensate for voltage drop between the converter and the load. The pin may be left open circuit, but connecting it to +Vo will optimize load regulation.. Inhibit: This is an active low input, which is referenced to GND. Driving this pin to GND disables the module’s output voltage. If Inhibit is left open-circuit, the output will be active whenever a valid input source is applied. Vo Adjust: This pin is used to trim the output voltage to a value within a range of up to ±10% of the setpoint. The adjustment requires an external resistor. The resistor is connected from Vo Adjust, to either the Sense(–) or Sense(+), in order to adjust the output voltage either up or down, respectively. Margin Up: When this pin is connected to Sense(–), the output voltage is increased by 5% of the nominal setpoint. The Margin Up and Margin Down control inputs provide a convenient method for testing the operation of the load circuit over a ±5% variation in the supply voltage. Margin Down: When this pin is connected to Sense(–), the output voltage is decreased by approximately 5% from the nominal. Typical Characteristics Performance Data; Vin =12.0V (See Note A) Efficiency vs Output Current Power Dissipation vs Output Current 100 8 PT5827 PT5821 PT5822 PT5823 PT5824 PT5825 PT5826 80 70 6 Pd - Watts Efficiency - % 90 PT5827 PT5821 PT5824 PT5826 4 2 60 50 0 0 4 8 12 16 0 Iout (A) 4 8 12 16 Iout (A) Output Ripple vs Output Current 50 Ripple - mV 40 PT5827 PT5821 PT5822 PT5823 PT5824 PT5825 PT5826 30 20 10 0 0 4 8 12 16 Iout (A) Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures. For technical support and more information, see inside back cover or visit www.ti.com Typical Characteristics PT5820 Series 16-A 12-V Input Adjustable Integrated Switching Regulator Safe Operating Curves, Vin =12V (See Note B) PT5827, Vout =5V 90 Ambient Temperature (°C) 80 Airflow 70 200LFM 120LFM 60LFM Nat conv 60 50 40 30 20 0 4 8 12 16 Iout (A) PT5821, Vout =3.3V 90 Ambient Temperature (°C) 80 Airflow 70 200LFM 120LFM 60LFM Nat conv 60 50 40 30 20 0 4 8 12 16 Iout (A) PT5822 .. PT5826, Vout ≤ 2.5V 90 Ambient Temperature (°C) 80 Airflow 70 200LFM 120LFM 60LFM Nat conv 60 50 40 30 20 0 4 8 12 16 Iout (A) Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures. For technical support and more information, see inside back cover or visit www.ti.com Application Notes PT5820 Series Operating Features of the PT5820 Series of Step-Down Integrated Switching Regulators Under-Voltage Lockout (UVLO) Over-Current Protection The PT5820 series of non-isolated step-down ISRs incorporate an under-voltage lockout (UVLO) function. The UVLO provides a clean transition during power-up and power-down, allowing the regulator to tolerate a slowly rising input voltage. The UVLO prevents operation of the regulator until the input voltage is at or above above the UVLO threshold. The UVLO threshold is just below the minimum input voltage. Until the input voltage is above this threshold, the status of the Inhibit control (pin 2) is overriden, and the module will not produce an output. When the minimum input voltage of 10.8V is applied, the output status is determined by the Inhibit control. If the Inhibit pin is open-circuit (not grounded), the module will automatically power up. (Note: Even though the applied input voltage may be above the UVLO threshold, operation to the published specifications requires that the input voltage be at or above the minimum specified. Operation of the module below the minimum input voltage is not recommended). To protect against load faults, the PT5820 series incorporates output over-current protection. Applying a load that exceeds the regulator’s over-current threshold (see data sheet specifications) will cause the regulated output to shut down. Following shutdown the ISR will periodically attempt to recover by initiating a soft-start power-up. This is often described as a “hiccup” mode of operation, whereby the module continues in the cycle of successive shutdown and power up until the load fault is removed. During this period, the average current flowing into the fault is significantly reduced. Once the fault is removed, the converter automatically recovers and returns to normal operation. Soft-Start Power Up Following either the application of a valid input source voltage, or the removal of a ground signal to the Inhibit control pin (with input power applied), the regulator will initiate a soft-start power up. The soft start slows the rate at which the output voltage rises, and also introduces a short time delay, td (approx. 10–15ms). Figure 1-1 shows the power-up characteristic of a PT5821 (3.3V). The delay time, td, is measured from the point at which the input voltage rises above the UVLO threshold to when the output voltage starts to rise. During this period the output of the regulator will assert a low impedance to ground. This has the effect of discharging any residual voltage across the output capacitors, and will crowbar any voltage supplied from external sources. Figure 1-1; Soft-Start Power Up Vo (2V/Div) Thermal Shutdown The PT5820 series ISRs incorporate thermal shutdown, which protects the module’s internal circuitry against excessively high temperatures. A rise in the temperature of the internal components may be the result of a drop in airflow, or a high ambient temperature. If the module’s internal temperature exceeds the shutdown threshold (see data sheet specifications), the regulator output is disabled and the output voltage is reduced to zero. The recovery is automatic, and begins with a soft-start power up. It occurs when the the sensed temperature decreases by about 10°C below the trip point. Note: The over-temperature protection is a last resort mechanism to prevent thermal stress to the regulator. Operation at or close to the thermal shutdown temperature is not recommended and will reduce the long-term reliability of the module. Always operate the regulator within the specified Safe Operating Area (SOA) limits for the worst-case conditions of ambient temperature and airflow. Output Voltage Adjustment The PT5820 series ISRs offer OEMs two alternative methods of output voltage adjustment. The Margin Up and Margin Down control inputs provide a convenient method of adjusting the output voltage by a nominal ±5% of the factory setpoint voltage. For a more permanent and precise method of adjustment, the Vo Adjust control allows the output to be adjusted in any increment by up to ±10%. For more information on this subject, consult the related application note on output voltage adjustment. Vin (5V/Div) td HORIZ SCALE: 5ms/Div For technical support and more information, see inside back cover or visit www.ti.com Application Notes PT5820 Series Using the Inhibit Control of the PT5820 Series of Step-Down Regulators For applications requiring output voltage On/Off control, the PT5820 series of ISRs incorporate an inhibit function. This function can be used wherever there is a requirement for the output voltage from the ISR to be turned off. The On/Off function is provided by the Inhibit control (pin 2). The ISR functions normally with pin 2 open-circuit, providing a regulated output whenever a valid source voltage is applied between Vin (pins 5–7) and GND (pins 11–13). When a low-level ground signal is applied to pin 2, the regulator output is turned off. Figure 2-1 shows the typical application of the Inhibit function. Note the discrete transistor (Q1). The Inhibit control has its own internal pull-up to +Vin potential. An open-collector or open-drain device is required to control this input 1. The voltage thresholds are given in Table 2-1. Turn-On Time: In the circuit of Figure 2-1, turning Q1 on applies a low-voltage to the Inhibit control (pin 2) and disables the output of the regulator 2. If Q1 is then turned off, the ISR executes a soft-start power up. Power up consists of a short delay period, td (approx. 10-15msec) 3, followed by a period in which the output voltage rises to its full regulation voltage. The module produces a regulated output voltage within 20msec. Figure 2-2 shows the typical rise in both the output voltage and input current for a PT5821 (3.3V), following the turnoff of Q1. The turn off of Q1 corresponds to the rise in the waveform, Q1 Vds. The waveforms were measured with a 12VDC input voltage, and 10-A load. Figure 2-2 Table 2-1; Inhibit Control Requirements Parameter Enable (VIH) Disable (VIL) Min Typ Vin – 0.5V –0.2V — Open — +0.8V — –0.5 mA — I IL Max Vo (2V/Div) Iin (2A/Div) Figure 2-1 Q1 Vds (10V/Div) Output Sense (+) VIN 5, 6, 7 4 + 1 =Inhibit 18 9–13 HORIZ SCALE: 5ms/Div VOUT 14–17 PT5820 2 CIN 560µF 3 8 COUT 330µF + 1 td Q1 BSS138 Output Sense (–) GND GND Notes: 1. Use an open-collector device with a breakdown voltage of at least 15V (preferably a discrete transistor) for the Inhibit input. A pull-up resistor is not necessary. To disable the output voltage the control pin should be pulled low to less than +0.8VDC. 2. When a ground signal is applied to the Inhibit control (pin 2) the module output is turned off. The output voltage decays to zero as the load impedance discharges the output capacitors. 3. During the period ‘td’ in Figure 2-2 the module will assert a low impedance to ground. This will discharge any residual voltage across the output capacitors, and will crowbar any voltage supplied from external sources. For technical support and more information, see inside back cover or visit www.ti.com Application Notes PT5820 Series Adjusting the Output Voltage of the PT5820 Series of Step-Down ISRs The Margin Up (pin 4) and Margin Down (pin 3) control inputs allow the output voltage to be easily adjusted by approximately ±5% of the the set-point voltage. These control inputs provide a convenient method for applying a momentary adjustment to test a load circuit’s supply voltage margins. To activate, simply connect the appropriate control input to the Sense(–) (pin 8), or the local starpoint ground. Either a logic level MOSFET or a p-channel JFET is recommended for this application. Vo Adjust Resistor Calculations The values of R1 [adjust up] and (R2) [adjust down] can also be calculated using the following formulas. Again, use Figure 3-1for the placement of the required resistor; either R1 or (R2) as appropriate. R1 = Vr · Ro Va – Vo – 24.9 kΩ (R2) = Ro (Va – Vr) Vo – Va – 24.9 kΩ Using the ‘Vo Adjust’ Control For a more permanent and precise adjustment, use the Vo Adjust control (pin 1). The Vo Adjust control allows adjustment in any increment by up to ±10% of the setpoint. The adjustment method requires the addition of a single external resistor. Table 3-1 gives the allowable adjustment range for each model of the series as Va (min) and Va (max). The value of the external resistor can either be calculated using the formulas given below, or simply selected from the range of values provided in Table 3-2. Refer to Figure 3-1 for the placement of the required resistor. Use the resistor R1 to adjust up, and the resistor (R2) to down. Where: Vo Va Vr Ro Original output voltage Adjusted output voltage The reference voltage in Table 3-1 The resistance constant in Table 3-1 Figure 3-1; Vo Adjust Resistor Placement Sense (+) [Note 3] (R2) Adj Down 18 Sense(+) Adjust Up: An increase in the output voltage is obtained by adding a resistor R1, between Vo Adjust (pin 1) and Sense(–) (pin 8). See Figure 3-1. PT5820 GND Adjust Down: Add a resistor (R2), between Vo Adjust (pin 1) and Sense(+) (pin 18). See Figure 3-1. = = = = 9–13 Sense(–) VOUT VOUT 14–17 VO Adj 8 COUT 330µF (Optional) 1 Notes: 1. Use a 1% (or better) tolerance resistor in either the R1 or (R2) location. Place the resistor as close to the ISR as possible. R1 Adjust Up Sense (–) GND 2. Never connect capacitors from Vo Adjust to either GND or Vout. Any capacitance added to the Vo Adjust pin will affect the stability of the ISR. 3. If the remote sense feature is not being used, the adjust resistor (R2) can be connected to Vout, (pins 14-17) instead of Sense (+). Table 3-1 ISR OUTPUT VOLTAGE ADJUSTMENT RANGE AND FORMULA PARAMETERS Series Pt. No. PT5827 PT5821 PT5822 PT5823 PT5824 PT5825 Vo (nom) 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V Va (min) 4.0V 2.6V 2.0V 1.52V 1.31V 1.1V 0.94V 1.32V Va (max) 5.5V 3.63V 2.8V 2.1V 1.82V 1.52V Vr Ω) Ro (kΩ 1.27V 0.8V 0.8V 0.8V 0.8V 0.8V 10.0 10.2 10.7 10.2 + Using Margin Up/ Margin Down 9.76 For technical support and more information, see inside back cover or visit www.ti.com 10.0 PT5826 0.8V 10.2 Application Notes continued PT5820 Series Table 3-2 ISR ADJUSTMENT RESISTOR VALUES Series Pt. No. PT5827 PT5821 Vo (nom) 5.0V 3.3V Va (req.d) PT5822 2.5V PT5823 1.8V PT5824 1.5V PT5825 1.2V PT5826 1.0V Va (req.d) 5.50 0.5kΩ 2.800 5.40 6.9kΩ 2.750 9.3KΩ 5.30 17.4kΩ 2.700 17.9KΩ 5.20 38.6kΩ 2.650 32.2KΩ 5.10 102.0kΩ 2.600 60.7KΩ 2.550 146.0KΩ 5.00 3.6KΩ 4.90 (338.0)kΩ 2.500 4.80 (152.0)kΩ 2.450 (321.0)kΩ 4.70 (89.4)kΩ 2.400 (146.0)kΩ 4.60 (58.3)kΩ 2.350 (85.7)kΩ 4.50 (39.7)kΩ 2.300 (55.3)kΩ 4.40 (27.3)kΩ 2.250 (37.2)kΩ 4.30 (18.4)kΩ 2.200 (25.0)kΩ 4.20 (11.7)kΩ 2.150 (16.4)kΩ 4.10 (6.5)kΩ 2.100 (9.9)kΩ 4.00 (2.4)kΩ 2.050 (4.8)kΩ 7.7kΩ 2.000 (0.8)kΩ 15.9kΩ • 2.3kΩ 3.60 2.3kΩ 1.950 3.55 7.7kΩ 1.900 56.7kΩ 3.50 15.9kΩ 1.850 138.0kΩ 3.45 29.5kΩ 1.800 3.40 56.7kΩ 1.750 (169.0)kΩ 6.3kΩ 3.35 138.0kΩ 1.700 (66.9)kΩ 14.1kΩ 1.650 (32.9)kΩ 27.2kΩ 3.30 29.5kΩ 1.1kΩ 3.25 (475.0)kΩ 1.600 (15.9)kΩ 53.2kΩ 3.20 (220.0)kΩ 1.550 (5.7)kΩ 131.0kΩ 3.15 (135.0)kΩ 1.500 3.10 (92.4)kΩ 1.475 (239.0)kΩ 3.05 (66.9)kΩ 1.450 (102.0)kΩ 7.1kΩ 3.00 (49.9)kΩ 1.425 (56.4)kΩ 10.7kΩ 2.95 (37.5)kΩ 1.400 (33.7)kΩ 15.1kΩ 2.90 (28.6)kΩ 1.375 (20.0)kΩ 20.8kΩ 2.85 (21.6)kΩ 1.350 (10.9)kΩ 28.4kΩ 2.80 (15.9)kΩ 1.325 (4.4)kΩ 39.1kΩ 2.75 (11.3)kΩ 1.300 55.1kΩ 2.70 (7.4)kΩ 1.275 81.8kΩ 4.8kΩ 2.65 (4.1)kΩ 1.250 135.0kΩ 7.7kΩ 2.60 (1.3)kΩ 1.225 295.0kΩ 11.4kΩ 1.175 (125.0)kΩ 21.7kΩ 1.150 (45.1)kΩ 29.5kΩ 1.125 (18.4)kΩ 40.4kΩ 1.100 (5.1)kΩ 56.7kΩ 1.8kΩ 4.2kΩ 1.200 2.3kΩ 15.9kΩ 1.075 83.9kΩ 1.050 138.0kΩ 1.025 302.0KΩ 1.000 R1 = Black 0.975 (46.5)kΩ 0.950 (5.7)kΩ R2 = (Blue) For technical support and more information, see inside back cover or visit www.ti.com Application Notes PT5820 Series Capacitor Recommendations for the PT5820 Regulator Series Tantalum Capacitors Tantalum type capacitors can be used for the output but only the AVX TPS, Sprague 593D/594/595 or Kemet T495/T510 series. These capacitors are recommended over many other tantalum types due to their higher rated surge, power dissipation, and ripple current capability. As a caution the TAJ series by AVX is not recommended. This series has considerably higher ESR, reduced power dissipation, and lower ripple current capability. The TAJ series is less reliable than the AVX TPS series when determining power dissipation capability. Tantalum or Oscon® types are recommended for applications where ambient temperatures fall below 0°C. Input Capacitor: The recommended input capacitance is determined by 1.3 ampere minimum ripple current rating and 560µF minimum capacitance. Ripple current and <100mΩ equivalent series resistance (ESR) values are the major considerations, along with temperature, when designing with different types of capacitors. Tantalum capacitors have a recommended minimum voltage rating of twice the maximum DC voltage + AC ripple. This is necessary to insure reliability for input voltage bus applications. Capacitor Table Table 1 identifies the characteristics of capacitors from a number of vendors with acceptable ESR and ripple current (rms) ratings. The number of capacitors required at both the input and output buses is identified for each capacitor type. Output Capacitors: The maximum allowable ESR of the output capacitor is 150mΩ. Electrolytic capacitors have marginal ripple performance at frequencies greater than 400kHz but excellent low frequency transient response. Above the ripple frequency, ceramic capacitors are necessary to improve the transient response and reduce any high frequency noise components apparent during higher current excursions. Preferred low ESR type capacitor part numbers are identified in Table 4-1. This is not an extensive capacitor list. Capacitors from other vendors are available with comparable specifications. Those listed are for guidance. The RMS ripple current rating and ESR (Equivalent Series Resistance at 100kHz) are critical parameters necessary to insure both optimum regulator performance and long capacitor life. Table 4-1: Input/Output Capacitors Capacitor Vendor/ Series Capacitor Characteristics Quantity Working Voltage Value(µF) (ESR) Equivalent Series Resistance 105°C Maximum Ripple Current(Irms) Physical Size(mm) Input Bus Output Bus Vendor Part Number Panasonic FC (Radial) 35V 25V 25V 680 330 1000 0.043Ω 0.090Ω 0.038Ω 1655mA 755mA 1690mA 12.5×20 10×12.5 16×15 1 N/R (1) 1 1 1 1 EEUFC1V681 EEUFC1E331 EEUFC1E102S FC/FK (Surface Mtg) 50V 35V 50V 1000 680 1000 0073Ω 0.060Ω 0.073Ω 1610mA 1100mA 1610mA 16×16.5 12.5×13.5 16×16.5 1 1 (2) 1 1 1 1 EEVFK1H102M EEVFK1V681Q (Vo<2.6V) EEVFK1H102M United Chemi-con LXZ/LXV Series MVY (Surface Mtg) 35V 35V 25V 680 680 330 0.037Ω 0.068Ω 0.15Ω 1660mA 1050mA 670mA 12.5×20 10×16 10×10.3 1 1 (2) N/R (1) 1 1 1 LXZ35VB681M12X20LL LXV35VB102M16X20LL(Vo<2.6V) MVY25VC331M10X10TP Nichicon PL Series 35V 25V 680 1270 0.042Ω 0.055Ω 1540mA 1270mA 18×15 16×15 1 1 (2) 1 1 UPL1V681MHH6 UPL1E122MHH6 (Vo<2.6V) PM Series 25V 820 0.049Ω 1340mA 16×15 1 1 UPM1E821MHH6 Os-con: SS SVP (surface Mount) Old SV Series 10V 16V 330 330 0.025Ω 0.016Ω 3500mA 4700mA 10×10.5 11×12 N/R (1) 2 1 1 10SS330M (Vo<5.1V) 16SVP330M AVX Tantalum TPS (Surface Mtgt) 10V 10V 330 330 0.1Ω 0.06Ω >2500mA >3000mA 7.3L ×5.7W ×4.1H N/R (1) N/R (1) 1 1 TPSE337M010R0100 (Vo<5.1V) TPSV337M010R0060 (Vo<5.1V) Kemet Tantalum T520/T495 Series (Surface Mount) 10V 6.3V 330 220 0.040Ω 0.07Ω 1600mA >2000mA 4.3W ×7.3L ×4.0H N/R (1) N/R (1) 1 1 520X337M010AS T495X227M0100AS Sprague Tantalum 594D Series (Surface Mount) 10V 330 0.045Ω 2360mA 7.2L ×6W ×4.1H N/R (1) 1 594D337X0010R2T (1) N/R –Not recommended. The voltage rating does not meet the minimum operating limits. (2) Recommended Input capacitor when Vo<2.6V; lower RMS mA required . For technical support and more information, see inside back cover or visit www.ti.com 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. 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