TPS60240, TPS60241 TPS60242, TPS60243 Actual Size (3,05 mm x 4,98 mm) SLVS372B – JUNE 2001 – REVISED JANUARY 2002 170-µVrms ZERO-RIPPLE SWITCHED CAP BUCK-BOOST CONVERTER FOR VCO SUPPLY FEATURES D Wide Input Voltage Range: D D D D D D D D D – 1.8 V To 5.5 V for 2.7-V, 3-V, 3.3-V Output (TPS60240/2/3) – 2.7 V To 5.5 V for 5-V Output (TPS60241) 170-µVrms Zero Ripple Output: – at 20 Hz to 10 MHz Bandwidth Minimum Number of External Components – No Inductors – Only Small Ceramic Chip Capacitors Up to 90% Efficiency Regulated 3.3-V (TPS60240), 5-V (TPS60241), 3-V (TPS60243), and 2.7-V (TPS60242) Output Voltage With ±2.5% Accuracy Over Load Up to 25-mA Output Current Shutdown Mode: 0.1 µA Typical Thermal Protection and Current Limit Microsmall 8-Pin MSOP Package EVM Available TPS60241EVM-194 APPLICATIONS D VCO and PLL Power for: D – PDA Phones – Cellular Phones – PCMCIA Modems Smartcard Readers D D D D D D D Digital Cameras MP3 Players SIM Modules Electronic Games Memory Backup Handheld Meters Bias Supplies DESCRIPTION The TPS6024x is a switched capacitor voltage converter, ideally suited for VCO and PLL applications that require low noise and tight tolerances. Its dual-cap design uses four ceramic capacitors to provide ultralow output ripple yet high efficiency, while eliminating the need for inefficient linear regulators. A wide input supply voltage range of 2.7 V to 5.5 V makes the TPS6024x ideal for lithium-based battery applications. The TPS60240/2/3 operates down to 1.8 V, supporting a 3.3-V, 2.7-V, 3-V output from two-cell, nickel- or alkaline-based chemistries. The devices work equally well for low EMI dc/dc step-up conversion without the need for an inductor. The high switching frequency (typical 160 kHz) promotes the use of small surface-mount capacitors, saving board space. The converter’s shutdown mode conserves battery energy. typical application circuit VIN 3.3 V CI 1 µF C1 1 µF GND VOUT TPS60241 C1+ C2+ C1– C2– GND EN 5V C2 1 µF VCC CO 1 µF VCO GND 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. Copyright 2002, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. www.ti.com 1 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 description(continued) The devices are thermally protected and current-limited for reliable operation even under persisting fault conditions. Normal quiescent current (ground pin current) is only 250 µA, and typically 0.1 µA in shutdown mode. The TPS6024x devices come in a thin, 8-pin MSOP (DGK) package with a component height of only 1,1 mm. DGK PACKAGE (TOP VIEW) VOUT EN C2– GND 1 8 2 7 3 6 4 5 C2+ C1+ VIN C1– AVAILABLE OPTIONS TA – 40°C to 85°C – 40°C 40 C to 85°C 85 C PART NUMBER† PACKAGE MARKING PACKAGE OUTPUT VOLTAGE (V) TPS60241DGKR AUB DGK (8-pin MSOP) 5V TPS60240DGKR ATM DGK (8-pin MSOP) 3.3 V TPS60242DGKR AYF DGK (8-pin MSOP) 2.7 V TPS60243DGKR AYG DGK (8-pin MSOP) 3V † This package type is available taped and reeled only. Quantity is 2500 units per reel (e.g., TPS60241DGKR). The devices are also available on mini reel with 250 units per reel. To order this packaging option, replace the R with a T in the part number (e.g., TPS60261DGKT). 2 www.ti.com TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 functional block diagram VIN C1+ C1 C1– Charge Pump 1 0° Charge Pump 2 Oscillator C2+ 180° C2 EN C2– Control Circuit With Thermal and Overload Protection VOUT + _ Reference GND Terminal Functions TERMINAL NAME NO. I/O DESCRIPTION C1+ 7 Positive terminal of the flying capacitor C1 C1– 5 Negative terminal of the flying capacitor C1 C2+ 8 Positive terminal of the flying capacitor C2 C2– 3 EN 2 GND 4 VIN 6 I Supply voltage input TPS60241: 2.7 V to 5.5 V, TPS60240/2/3: 1.8 V to 5.5 V. Bypass VIN to GND with a 1-µF external capacitor (CI). VOUT 1 O Regulated power output. Bypass VOUT to GND with a 1-µF external filter capacitor (CO). TPS60241: regulated 5-V output, TPS60240: regulated 3.3-V output, TPS60242: regulated 2.7-V output, TPS60243: regulated 3-V output Negative terminal of the flying capacitor C2 I Enable terminal, active high Ground www.ti.com 3 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 detailed description operating principle The TPS6024x charge pump is a fixed-frequency, dual-phase charge pump that provides 25 mA of continuous supply current for low-noise applications such as VCOs used in cell phones and wireless appliances. Low-noise operation results from using a proprietary dual-phase charge pump topology that relies on an operational amplifier in the feedback loop to reduce ripple. During the first phase, C1 is charged to the supply voltage. Terminal C1+ is connected to VIN, and C1– is connected to GND. In the second phase, C1– is connected to the output of the operational amplifier, and C1+ is connected to VOUT. The operational amplifier then adjusts its output until the output VOUT delivers the correct voltage to make the resistor divided feedback point equal to the reference voltage. During this second phase, C2 is charged to supply voltage. Terminal C2– is connected to GND, and C2+ is connected to VIN. Phase one is then repeated with C2, now acting to provide charge to the output in place of C1, which is connected to the supply. The dual-phase operation lowers the output ripple voltage significantly compared to a standard single-phase charge pump. In addition, the linear feedback of the operational amplifier eliminates the ripple during discharge of the output capacitor (CO). shutdown Driving EN low disables the converter. This disables the internal circuits and reduces input current to typically 0.1 µA. In this mode, the load is disconnected from the supply voltage. The device exits shutdown once EN is set to a high level. start-up procedure The converter is enabled when EN is set from logic low to high. The start-up time to reach 90% of the nominal output voltage is typically 0.5 ms at load currents lower than 10 mA and with an output capacitor of 1 µF. Increasing the values of CO delays the start-up time. absolute maximum ratings over operating free-air temperature (unless otherwise noted)† Supply voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V Power dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited Voltage EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V Voltage C2–, C1– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to VI or 5.5 V, whichever is lowest Voltage C2+, C1+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to VI, VO, or 5.5 V, whichever is lowest Junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C Storage temperature, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C Shortcircuit output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 mA maximum † 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. DISSIPATION RATING TABLE PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING DGK 376 mW 3.76 mW/°C 207 mW 150 mW NOTE: The thermal resistance junction to ambient of the DGK package is RTH–JA = 150°C/W. 4 www.ti.com TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 recommended operating conditions MIN VI Input voltage range IO CI Output current range C1, C2 NOM MAX TPS60240, TPS60242, TPS60243 1.8 5.5 TPS60241 2.7 5.5 All devices UNIT V 25 mA Input capacitor 1 µF Flying capacitors 1 µF CO Output capacitor 1 µF TA Operating temperature range –40 85 °C electrical characteristics for TPS6024X at TA = 25°C, CI = CO =1 µF, C1 = C2 = 1 µF (unless otherwise noted), limits apply over the specified temperature range, –40°C to 85°C PARAMETER TEST CONDITIONS TPS60240 Assured start-up TPS60241 Assured start-up VI Input voltage TPS60242 Assured start-up TPS60243 Assured start-up VO Output current TPS60241 fOSC Vn 5.5 1.8 5.5 1.8 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO ≤ 12 mA 2.3 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO ≤ 25 mA 1.8 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO ≤ 10 mA TPS60243 IO 5.5 1.8 3 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO ≤ 25 mA TPS60242 TPS60240/2/3 2.7 IO ≤ 12 mA, RL = 225 Ω IO ≤ 10 mA, RL = 300 Ω 2.7 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO ≤ 12 mA Output voltage 2.3 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO ≤ 25 mA Nominal 2 V ≤ VI ≤ 5.5 V Short circuit Nominal VI = 2 V 2.7 V ≤ VI ≤ 5.5 V Short circuit VI = 3.25 V Internal clock source 3 2175 3.2175 33 3.3 3 3.3825 3825 4 875 4.875 5 5 125 5.125 2 6325 2.6325 27 2.7 2 2.7675 7675 2 925 2.925 3 3 075 3.075 UNIT V V 12 80 mA 12 80 100 160 TPS60240/2/3 VI < 2.5 V, IO = 5 mA, ESR < 0.1 Ω, measured over 20 Hz to 10 MHz, CO = 4.7 µF 170 TPS60241 VI = 2.7 V, IO = 5 mA, ESR < 0.1 Ω, measured over 20 Hz to 10 MHz, CO = 4.7 µF 170 Out ut noise Output voltage MAX 5.5 2.4 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO ≤ 25 mA TPS60241 TYP 1.8 1.8 V ≤ VI ≤ 5.5 V, 0 mA ≤ IO ≤ 5 mA TPS60240 MIN IO ≤ 5 mA, RL = 600 Ω IO ≤ 12 mA, RL = 417 Ω 220 kHz µV V RMS VI(H) VI(L) EN Logic high input voltage VOH 1.3 5.5 EN Logic low input voltage VOL –0.2 0.4 V II(H) II(L) EN Logic high input current 100 nA EN Logic low input current 100 nA t(EN) EN Start-up time TPS60240 η TPS60241 Efficiency TPS60242 TPS60243 VO > 90% of V(NOM) 0.1 mA ≤ IO ≤ 10 mA, CO = 1 µF 0.5 IO = 5 mA, VI = 1.8 V IO = 10 mA, VI = 2.7 V 89.6% IO = 10 mA, VI = 1.8 V IO = 10 mA, VI = 1.8 V 73% www.ti.com V ms 90.8% 81% 5 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 electrical characteristics for TPS6024X at TA = 25°C, CI = CO =1 µF, C1 = C2 = 1 µF (unless otherwise noted), limits apply over the specified temperature range, –40°C to 85°C (continued) PARAMETER IQ TEST CONDITIONS IO = 0 mA, VI = 3 V In shutdown mode Quiescent current Thermal shutdown MIN TYP MAX UNIT 250 325 0.1 1 Temperature activated 160 Temperature deactivated 140 µA A _C TYPICAL CHARACTERISTICS Table of Graphs FIGURE Efficiency VO Output Out ut voltage 1–4 vs Output current 5–8 vs Input voltage 9–12 vs Output current 13–16 vs Free-air temperature 17 vs Input voltage 18 vs Free-air temperature 19 Shutdown current vs Free-air temperature 20 Output noise voltage vs Output current Maximum output current vs Input voltage Quiescent current IL(sd) Vn vs Input voltage Load transient response 26 Start-up timing 27 Line transient response 28 Noise voltage spectrum Output voltage ripple 6 21 22–25 29 vs Time www.ti.com 30 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 TYPICAL CHARACTERISTICS TPS60240 TPS60241 EFFICIENCY vs INPUT VOLTAGE EFFICIENCY vs INPUT VOLTAGE 100 100 90 90 IO = 10 mA 80 80 IO = 25 mA 70 Efficiency – % Efficiency – % 70 60 50 IO = 1 mA 40 60 40 30 20 20 10 10 2 2.5 3 3.5 4 4.5 VI – Input Voltage – V 5 IO = 1 mA 50 30 0 1.5 IO = 10 mA 0 2.5 5.5 3 TPS60242 TPS60243 EFFICIENCY vs INPUT VOLTAGE EFFICIENCY vs INPUT VOLTAGE 100 100 90 90 80 IO = 10 mA 5.5 IO = 10 mA 70 Efficiency – % Efficiency – % 70 IO = 25 mA 60 50 40 30 50 40 20 10 10 2.5 3 3.5 4 4.5 VI – Input Voltage – V IO = 1 mA 30 IO = 1 mA 2 IO = 25 mA 60 20 0 1.5 5 Figure 2 Figure 1 80 3.5 4 4.5 VI – Input Voltage – V 5 5.5 Figure 3 0 1.5 2 2.5 3 3.5 4 4.5 VI – Input Voltage – V 5 5.5 Figure 4 www.ti.com 7 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 TYPICAL CHARACTERISTICS TPS60240 TPS60241 EFFICIENCY vs OUTPUT CURRENT EFFICIENCY vs OUTPUT CURRENT 100 100 VI = 1.8 V 90 VI = 2 V 80 80 60 50 40 VI = 3.3 V 60 50 40 30 30 20 20 10 10 0 0 5 10 15 20 IO – Output Current – mA 25 0 30 5 Figure 5 TPS60243 EFFICIENCY vs OUTPUT CURRENT 90 VI = 1.8 V 80 VI = 2 V VI = 1.8 V VI = 2 V 60 VI = 2.5 V 50 40 VI = 2.5 V 60 50 40 30 30 20 20 10 10 0 5 30 70 Efficiency – % Efficiency – % TPS60242 EFFICIENCY vs OUTPUT CURRENT 90 70 25 Figure 6 100 80 10 15 20 IO – Output Current – mA 25 30 Figure 7 8 10 15 20 IO – Output Current – mA 100 0 TA = 25°C 70 VI = 2.5 V Efficiency – % Efficiency – % 70 0 VI = 2.7 V 90 0 0 5 10 15 20 IO – Output Current – mA Figure 8 www.ti.com 25 30 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 TYPICAL CHARACTERISTICS TPS60240 TPS60241 OUTPUT VOLTAGE vs INPUT VOLTAGE OUTPUT VOLTAGE vs INPUT VOLTAGE 3.31 5.010 IO = 0 mA 3.3 IO = 0 mA 5.005 VO – Output Voltage – V VO – Output Voltage – V 3.305 IO = 10 mA 3.295 IO = 25 mA 3.29 5 IO = 10 mA 4.995 IO = 25 mA 4.990 4.985 3.285 3.28 1.5 2 2.5 3 3.5 4 4.5 VI – Input Voltage – V 5 4.980 2.5 5.5 3 3.5 4 4.5 5 VI – Input Voltage – V Figure 9 TPS60242 TPS60243 OUTPUT VOLTAGE vs INPUT VOLTAGE OUTPUT VOLTAGE vs INPUT VOLTAGE 3.01 2.705 IO = 0 mA 2.7 IO = 10 mA VO – Output Voltage – V VO – Output Voltage – V 6 Figure 10 2.71 2.695 IO = 25 mA 2.69 3.005 IO = 0 mA 3 IO = 10 mA 2.995 IO = 25 mA 2.99 2.985 2.685 2.68 5.5 1.5 2 2.5 3 3.5 4 4.5 5 5.5 2.98 1.5 2 2.5 3 3.5 4 4.5 5 5.5 VI – Input Voltage – V VI – Input Voltage – V Figure 11 Figure 12 www.ti.com 9 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 TPS60240 TPS60241 OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT 3.40 5.02 3.35 5 TA = 25°C VO – Output Voltage – V VO – Output Voltage – V TYPICAL CHARACTERISTICS VI = 2.5 V 3.30 3.25 VI = 2 V VI = 1.8 V 3.20 VI = 3.3 V 4.98 VI = 2.7 V 4.96 4.94 4.92 3.15 4.9 3.10 0 5 10 15 20 25 0 30 5 IO – Output Current – mA TPS60242 TPS60243 OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT 2.80 3.10 2.75 3.05 VI = 2.5 V 2.70 VI = 2 V 2.65 VI = 1.8 V 2.60 2.55 30 VI = 2.5 V 3 VI = 2 V 2.95 2.90 VI = 1.8 V 2.85 2.50 2.80 0 5 10 15 20 25 30 IO – Output Current – mA 0 5 10 15 20 IO – Output Current – mA Figure 15 10 25 Figure 14 VO – Output Voltage – V VO – Output Voltage – V Figure 13 10 15 20 IO – Output Current – mA Figure 16 www.ti.com 25 30 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 TYPICAL CHARACTERISTICS TPS60241 TPS60241 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE QUIESCENT CURRENT vs INPUT VOLTAGE 4.988 VO – Output Voltage – V 4.984 4.982 275 VI = 2.7 V, IO = 0.1 mA VI = 5 V, IO = 0 mA VI = 5 V, IO = 5 mA TA = 25°C 270 Quiescent Current – µ A 4.986 4.98 4.978 4.976 4.974 4.972 4.97 VI = 2.7 V, IO = 0 mA VI = 3 V, IO = 5 mA 4.968 4.964 260 255 250 245 VI = 5 V, IO = 12 mA 4.966 265 VI = 3 V, IO = 12 mA 240 4.962 4.96 –60 –40 –20 0 20 40 60 80 235 2.5 100 120 TA – Free-Air Temperature – °C 3.5 4 4.5 5 5.5 VI – Input Voltage – V Figure 18 Figure 17 TPS60241 TPS60241 QUIESCENT CURRENT vs FREE-AIR TEMPERATURE SHUTDOWN CURRENT vs FREE-AIR TEMPERATURE 0.1 300 0.08 260 240 220 VI = 3 V 200 180 160 140 I L(sd)– Shutdown Current – µ A 280 Quiescent Current – µ A 3 0.06 0.04 0.02 VI = 3 V 0 –0.02 –0.04 –0.06 –0.08 120 –0.1 –60 –40 –20 0 20 40 60 80 100 120 TA – Free-Air Temperature – °C 100 –60 –40 –20 0 20 40 60 80 100 120 TA – Free-Air Temperature – °C Figure 19 Figure 20 www.ti.com 11 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 TYPICAL CHARACTERISTICS V n – Output Noise Voltage – µ V 220 TPS60240 MAXIMUM OUTPUT CURRENT vs INPUT VOLTAGE 60 CI = CO = 4.7 µF Bandwidth = 20 Hz to 10 MHz 200 I O(max) – Maximum Output Current – mA 240 TPS60241 OUTPUT NOISE VOLTAGE vs OUTPUT CURRENT VI = 5 V VI = 3.3 V 180 VI = 2.7 V 160 140 120 100 0 5 10 15 20 25 TA = 25°C 40 TA = –40°C 30 20 10 0 1.5 30 TA = 85°C 50 2 IO – Output Current – mA Figure 21 TPS60241 TPS60242 MAXIMUM OUTPUT CURRENT vs INPUT VOLTAGE MAXIMUM OUTPUT CURRENT vs INPUT VOLTAGE I O(max)– Maximum Output Current – mA I O(max)– Maximum Output Current – mA 5.5 5 5.5 60 TA = 85°C 50 TA = 25°C 40 TA = –40°C 30 20 10 3 3.5 4 4.5 VI – Input Voltage – V 5 5.5 Figure 23 12 5 Figure 22 60 0 2.5 2.5 3 3.5 4 4.5 VI – Input Voltage – V TA = 85°C 50 TA = 25°C 40 TA = –40°C 30 20 10 0 1.5 2 2.5 3 3.5 4 4.5 VI – Input Voltage – V Figure 24 www.ti.com TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 TYPICAL CHARACTERISTICS TPS60243 MAXIMUM OUTPUT CURRENT vs INPUT VOLTAGE LOAD TRANSIENT RESPONSE I O(max)– Maximum Output Current – mA 60 Output Voltage = 5 mV/div 25 µs/div TA = 85°C 50 TA = 25°C 40 TA = –40°C VI = 3.3 V TA = 25°C 30 20 10 Load Current = 0 mA – 10 mA @ 5 mA/div 0 1.5 2 2.5 3 3.5 4 4.5 5 5.5 VI – Input Voltage – V Figure 25 Figure 26 START-UP TIMING LINE TRANSIENT RESPONSE Enable = 0 V – 2 V @ 2 V/div Output Voltage = 10 mV/div CI = CO = C1 = C2 = 1 µF RL = 500 Ω VI = 3.3 V Input Voltage = 3 V – 4 V IO = 10 mA – 3 V @ 0.5 V/div TA = 25°C RL = 500 Ω VI = 3.3 V TA = 25°C Output Voltage = 2 V/div 250 µs/div 100 µs/div Figure 27 Figure 28 www.ti.com 13 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 TYPICAL CHARACTERISTICS TPS60241 NOISE VOLTAGE SPECTRUM 10 mVrms ǸHz 100 nVrms ǸHz CI = CO = 4.7 µF C1 = C2 = 1 µF RO = 500 Ω VI = 3.3 V TA = 25°C 10 Hz 100 Hz 1 kHz 10 kHz 100 kHz Figure 29 TPS60241 OUTPUT VOLTAGE RIPPLE vs TIME 200 µ V/div CI = CO = 1 µF RL = 500 Ω VI = 3.3 V TA = 25°C CI = CO = 4.7 µF 2.5 µs/div NOTE: Scope triggered by voltage at flying capacitors, noise removed by averaging function and bandwidth limit 20 MHz. Figure 30 14 www.ti.com TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 APPLICATION INFORMATION CI 1 µF 5V VOUT VIN 3.3 V TPS60241 C1+ C2+ C1 1 µF GND C1– C2– GND EN VCC CO 1 µF C2 1 µF VCO GND Figure 31. 5-V Low-Noise VCO Supply From 3.3-V Input VOUT VIN 2V TPS60240 C1+ C2+ C1 1 µF CI 1 µF 3.3 V GND C1– C2– GND EN VO CO 1 µF C2 1 µF GND Figure 32. 2-V to 3.3-V Low-Noise Converter output voltage ripple The output voltage ripple depends on the capacitors used. Table 1 illustrates the dependence between output voltage ripple and capacitor selection. Table 1. Output Voltage Ripple and Capacitor Selection CI CO C1 C2 OUTPUT VOLTAGE RIPPLE [µVrms] 1 µF 1 µF 1 µF 1 µF 288 2.2 µF 2.2 µF 1 µF 1 µF 212 4.7 µF 4.7 µF 1 µF 1 µF 183 4.7 µF 1 µF 1 µF 1 µF 272 1 µF 4.7 µF 1 µF 1 µF 185 NOTE: VI = 3.3 V, VO = 5 V, RL = 500 Ω, TA = 25°C www.ti.com 15 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 APPLICATION INFORMATION components For the best output ripple performance, low-ESR ceramic capacitors are recommended (see Table 2). Table 2. Recommended Capacitors PART CI MANUFACTURER PART NUMBER Taiyo Yuden LMK212BJ105KG–T TDK C2012X5R0J475K VALUE TOLERANCE DIELECTRIC MATERIAL PACKAGE RATED VOLTAGE 1 µF 10% X7R 0805 10 4.7 µF 10% X5R 0805 6.3 1 µF 10% X7R 0805 10 4.7 µF 10% X5R 0805 6.3 LMK212BJ105KG–T 1 µF 10% X7R 0805 10 LMK212BJ105KG–T 1 µF 10% X7R 0805 10 Taiyo Yuden LMK212BJ105KG–T CO TDK C2012X5R0J475K C1, C2 Taiyo Yuden CF Taiyo Yuden layout consideration In order to get optimal noise behavior, keep the power lines to the capacitors and load as short as possible. Use of power planes is recommended. VO VIN VI C1 CI GND VOUT TPS6024X C1+ C2+ C1– C2– GND EN C2 CO GND Figure 33. Layout Diagram 16 www.ti.com Load TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 APPLICATION INFORMATION Figure 34. Top Silkscreen Figure 35. Top Layer device family products PART NUMBER DESCRIPTION REG710 30-mA switched cap dc/dc converter REG711 50-mA switched cap dc/dc converter TPS60110 Regulated 5-V, 300-mA low-noise charge pump dc/dc converter TPS60111 Regulated 5-V, 150-mA low-noise charge pump dc/dc converter www.ti.com 17 TPS60240, TPS60241 TPS60242, TPS60243 SLVS372B – JUNE 2001 – REVISED JANUARY 2002 MECHANICAL DATA DGK (R-PDSO-G8) PLASTIC SMALL-OUTLINE PACKAGE 0,38 0,25 0,65 8 0,25 M 5 0,15 NOM 3,05 2,95 4,98 4,78 Gage Plane 0,25 1 0°–ā6° 4 3,05 2,95 0,69 0,41 Seating Plane 1,07 MAX 0,15 0,05 0,10 4073329/B 04/98 NOTES: A. B. C. D. 18 All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC MO-187 www.ti.com PACKAGE OPTION ADDENDUM www.ti.com 12-Sep-2005 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty TPS60240DGK ACTIVE MSOP DGK 8 TPS60240DGKR ACTIVE MSOP DGK 8 Lead/Ball Finish MSL Peak Temp (3) TBD Call TI 2500 TBD CU NIPDAU Call TI Level-2-240C-1 YEAR TPS60240DGKT ACTIVE MSOP DGK 8 250 TBD CU NIPDAU Level-2-240C-1 YEAR TPS60241DGKR ACTIVE MSOP DGK 8 2500 TBD CU NIPDAU Level-2-240C-1 YEAR TPS60241DGKT ACTIVE MSOP DGK 8 250 TBD CU NIPDAU Level-2-240C-1 YEAR TPS60242DGK ACTIVE MSOP DGK 8 TBD Call TI TPS60242DGKR ACTIVE MSOP DGK 8 2500 TBD CU NIPDAU Call TI Level-3-235C-168 HR TPS60242DGKT ACTIVE MSOP DGK 8 250 TBD CU NIPDAU Level-2-240C-1 YEAR TPS60243DGK ACTIVE MSOP DGK 8 TBD Call TI TPS60243DGKR ACTIVE MSOP DGK 8 2500 TBD CU NIPDAU Call TI Level-2-240C-1 YEAR TPS60243DGKT ACTIVE MSOP DGK 8 250 TBD CU NIPDAU Level-2-240C-1 YEAR (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) 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. 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. 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