TPS60125PWPRG4

TPS60120 TI | Alldatasheet

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Technical content

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

features

/C0068High Average Efficiency Over Input Voltage Range Because of Special Switching Topology /C0068Minimum 200-mA Output Current From an Input Voltage Range of 1.8-V to 3.6-V /C0068Regulated 3.3-V or 3-V ±4% Output Voltage /C0068No Inductors Required, Low EMI /C0068Only Four External Components Required /C006855-mA Quiescent Supply Current /C00680.05-mA Shutdown Current /C0068Load Disconnected in Shutdown /C0068Integrated Low Battery and Power Good Detectors /C0068Evaluation Module Available (TPS60120EVM-142)

applications

/C0068Applications Powered by Two Battery Cells /C0068Portable Instruments /C0068Battery-Powered Microprocessor Systems /C0068Miniature Equipment /C0068Backup-Battery Boost Converters /C0068PDAs, Organizers, Laptops /C0068MP-3 Portable Audio Players /C0068Handheld Instrumentation /C0068Medical Instruments (e.g., Glucose Meters) /C0068Cordless Phones

description

The TPS6012x step-up, regulated charge pumps generate a 3.3-V or 3-V ±4% output voltage from a 1.8-V to 3.6-V input voltage (two alkaline, NiCd, or NiMH batteries). They can deliver an output current of at least 200 mA (100 mA for the TPS60122 and TPS60123), all from a 2-V input. Four external capacitors are needed to build a complete high efficiency dc/dc charge pump converter. To achieve the high efficiency over a wide input voltage range, the charge pump automatically selects between a 1.5x or doubler conversion mode. From a 2-V input, all ICs can start with full load current. The devices feature the power-saving pulse-skip mode to extend battery life at light loads. TPS60120, TPS60122, and TPS60124 include a low battery comparator. TPS60121, TPS60123, and TPS60125 feature a power-good output. The logic shutdown function reduces the supply current to a maximum of 1mA and disconnects the load from the input. Special current-control circuitry prevents excessive current from being drawn from the battery during start-up. This dc/dc converter requires no inductors, therefore EMI is of low concern. It is available in the small, thermally enhanced 20-pin PowerPAD/C0116 package (PWP). IO = 66 mA 100 VI – Input Voltage – V Efficiency – % IO = 164 mA IO = 216 mA IO = 116 mA VO = 3.3 V TC = 25°C IN IN LBI C1+ C1– ENABLE PGND GND OUT OUT FB LBO C2+ C2– C O 22 mF C i 10 mF Output 3.3 V 2.2 mF 2.2 mF Input 1.8 V to 3.6 V OFF/ON efficiency (TPS60120, TPS60121) typical operating circuit TPS60120 Copyright  2000, Texas Instruments Incorporated 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. 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. PowerPAD is a trademark of Texas Instruments Incorporated.

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

C1– PGND PGND GND GND LBI LBO OUT C2+ IN C2– PGND PGND PWP PACKAGE (TPS60120, TPS60122, TPS60124) (TOP VIEW) Thermal Pad GND GND ENABLE FB OUT C1+ IN C1– PGND PGND GND GND NC PG OUT C2+ IN C2– PGND PGND PWP PACKAGE (TPS60121, TPS60123, TPS60125) (TOP VIEW) AVAILABLE OPTIONS TA PART NUMBER † PACKAGE DEVICE FEATURES TPS60120PWP

2 Cell to 3 3 V 200 mA

TPS60121PWP 2-Cell to 3.3 V, 200 mA Power good detector –40°Ct o8 5°C TPS60122PWP PWP 20-Pin thermally 2 Cell to 3 3 V 100 mA Low battery detector–40°C to 85°C TPS60123PWP PWP y enhanced TSSOP 2-Cell to 3.3 V, 100 mA Power good detector TPS60124PWP 2-Cell to 3 V 200 mA Low battery detector TPS60125PWP 2-Cell to 3 V, 200 mA Power good detector † The PWP package is available taped and reeled. Add R suffix to device type (e.g. TPS60120PWPR) to order quantities of 2000 devices per reel.

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 3POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 functional block diagram Charge Pump Power Stages IN C1+ C1– OUT PGND IN C2+ C2– OUT PGND FB Oscillator Control Circuit –VREF Shutdown/ Start-Up Control

0.8 VI +

–VREF LBI GND LBO ENABLE C1F C2F TPS60120, TPS60122, TPS60124 Charge Pump Power Stages IN C1+ C1– OUT PGND IN C2+ C2– OUT PGND FB Oscillator Control Circuit –VREF Shutdown/ Start-Up Control 0.8 VI –VREF GND PG ENABLE C1F C2F TPS60121, TPS60123, TPS60125

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

NAME NO. I/O DESCRIPTION C1+ 6 Positive terminal of the flying capacitor C1 C1– 8 Negative terminal of the flying capacitor C1 C2+ 15 Positive terminal of the flying capacitor C2 C2– 13 Negative terminal of the flying capacitor C2 ENABLE 3 I ENABLE input. Connect ENABLE to IN for normal operation. When ENABLE is a logic low, the device turns off and the supply current decreases to 0.05 mA. The output is disconnected from the input when the device is placed in shutdown. FB 4 I Feedback input. Connect FB to OUT as close to the load as possible to achieve best regulation. Resistive divider is on the chip to match the internal reference voltage of 1.21 V. GND 1, 2, 19, 20 Ground. Analog ground for internal reference and control circuitry. Connect to PGND through a short trace. Connect both INs through a short trace. LBO/PG 17 O Low battery detector output or power good output. Open drain output of the low battery or power-good comparator. It can sink 1 mA. A 100-kW to 1-MW pullup is recommended. Leave terminal unconnected if not used. LBI/NC 18 I Low battery detector input (TPS60120/TPS60122/TPS60124 only). The input is compared to the internal 1.21-V reference voltage. Connect terminal to ground if the low-battery detector function is not used. On the TPS60121, TPS60123, and TPS60125, this terminal is not connected. OUT 5, 16 O Regulated power output. Connect both OUT terminals through a short trace and bypass OUT to GND with the output filter capacitor CO. PGND 9–12 Power ground. Charge-pump current flows through this pin. Connect all PGND pins together. detailed description operating principle The TPS6012x charge pumps provide a regulated 3.3-V or 3-V output from a 1.8-V to 3.6-V input. They are designed for a maximum load current of at least 200 mA or 100 mA, respectively. Designed specifically for space-critical, battery-powered applications, the complete charge pump circuit requires only four external capacitors. The circuit is optimized for efficiency over a wide input voltage range. The TPS6012x charge pumps consist of an oscillator, a 1.21-V bandgap reference, an internal resistive feedback circuit, an error amplifier, high current MOSFET switches, a shutdown/start-up circuit, a low-battery or power-good comparator, and a control circuit (see the functional block diagram). The device consists of two single-ended charge pumps. The power stages of the charge pump are automatically configured to amplify the input voltage with a conversion factor of 1.5 or 2. The conversion ratio depends on input voltage and output current. With input voltages lower than approximately 2.4 V, the convertor will run in a voltage doubler mode with a gain of two. With a higher input voltage, the converter operates with a gain of 1.5. This assures high efficiency over the wide input voltage range of a two-cell battery stack and is further described in the adaptive mode switching section. adaptive mode switching The ON-resistance of the MOSFETs that are in the charge path of the flying capacitors is regulated when the charge pump operates in voltage doubler-mode. It is changed depending on the output voltage that is fed back into the control loop. This way, the time-constant during the charging phase can be modified and increased versus a time-constant for fully switched-on MOSFETs. The ON-resistance of both switches and the capacitance of the flying capacitor define the time constant. The MOSFET switches in the discharge path of the charge pump are always fully switched on to their minimum r DS(on). With the time-constant during charge phase being larger than the time constant in discharge phase, the voltage on the flying capacitors stabilizes to the lowest possible value necessary to get a stable VO .

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 5POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 adaptive mode switching (continued) The voltage on the flying capacitors is measured and compared with the supply voltage (VI). If the voltage across the flying capacitors is smaller than half of the supply voltage, then the charge pump switches into the 1.5x conversion-mode. The charge pump switches back from a 1.5x conversion-mode to a voltage doubler mode if the load current in 1.5x conversion-mode can no longer be delivered. With this control mode the device runs in doubler-mode at low V I and in 1.5x conversion-mode at high VI to optimize the efficiency. The most desirable doubler mode is automatically selected depending on both VI and IL. This means that at light loads the device selects the 1.5x conversion-mode already at smaller supply voltages than at heavy loads. The TPS6012x output voltage is regulated using the ACTIVE-CYCLE regulation. An active cycle controlled charge pump utilizes two methods to control the output voltage. At high load currents it varies the on resistances of the internal switches and keeps the ratio ON/OFF time (=frequency) constant. That means the charge pump runs at a fixed frequency. It also keeps the output voltage ripple as low as in linear-mode. At light loads the internal resistance and also the amount of energy transferred per pulse is fixed and the charge pump regulates the voltage by means of a variable ratio of ON-to-OFF time. In this operating point, it runs like a skip mode controlled charge pump with a very high internal resistance, which also enables a low ripple in this operation mode. Since the charge pump does effectively switch at lower frequencies at light loads, it achieves a low quiescent current. pulse-skip mode In pulse-skip mode the error amplifier disables switching of the power stages when it detects an output higher than the nominal output voltage. The oscillator halts and the IC then skips switching cycles until the output voltage drops below the nominal output voltage. Then the error amplifier reactivates the oscillator and starts switching the power stages again. The pulse-skip regulation mode minimizes operating current because it does not switch continuously and deactivates all functions except bandgap reference, error amplifier, and low-battery/power-good comparator when the output is higher than the nominal output voltage. When switching is disabled from the error amplifier, the load is also isolated from the input. In pulse-skip mode, a special current control circuitry limits the peak current. This assures moderate output voltage ripple and also prevents the device from drawing excessive current spikes out of the battery. start-up procedure During start-up, i.e., when ENABLE is set from logic low to logic high, the output capacitor is charged up with a limited current until the output voltage (V O ) reaches 0.8 × VI. When the start-up comparator detects this voltage limit, the IC begins switching. This start-up charging of the output capacitor ensures a short start-up time and eliminates the need of a Schottky diode between IN and OUT. The IC starts into a maximum load resistance of VO(nom)/IO(max). shutdown Driving ENABLE low places the device in shutdown mode. This disables all switches, the oscillator, and control logic. The device typically draws 0.05 mA (1 mA max) of supply current in this mode. Leakage current drawn from the output is as low as 1 mA max. The device exits shutdown once ENABLE is set to a high level. The typical no-load shutdown exit time is 10 ms. When the device is in shutdown, the load is isolated from the input. undervoltage lockout and short-circuit current limit The TPS6012x devices have an undervoltage lockout feature that deactivates the device and places it in shutdown mode when the input voltage falls below the typical threshold voltage of 1.6 V. During a short-circuit condition at the output, the current is limited to 115 mA.

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LBO is an open drain output. An external pullup resistor to OUT, in the 100-kW to 1-MW range, is recommended. If the low-battery comparator function is not used, connect LBI to ground and leave LBO unconnected. Figure 1. Programming of the Low-Battery Comparator Trip Voltage Table 1. Recommended Values for the Resistive Divider From the E96 Series (±1%), the integrated voltage reference adds and considering that not every calculated resistor value is available.

3.3 V, 200 mA

Figure 2. Typical Operating Circuit Using Power-Good Comparator implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

DISSIPATION RATING TABLE 1 FREE-AIR TEMPERATURE (see Figure 3) PACKAGE TA ≤ 25/C0095C POWER RATING DERATING FACTOR ABOVE T A = 25/C0095C TA = 70/C0095C POWER RATING TA = 85/C0095C POWER RATING PWP 700 mW 5.6 mW//C0095C 448 mW 364 mW DISSIPATION RATING TABLE 2 FREE-AIR TEMPERATURE (see Figure 4) PACKAGE TC ≤ 62.5/C0095C POWER RATING DERATING FACTOR ABOVE T C = 62.5/C0095C TC = 70/C0095C POWER RATING TC = 85/C0095C POWER RATING PWP 25 mW 285.7 mW//C0095C 22.9 mW 18.5 mW Figure 3 800 600 400 25 50 75 100 – Dissipation Derating Curve – mW 1000 1200 DISSIPATION DERATING CURVE † vs FREE-AIR TEMPERATURE 1400 125 150 200 TA – Free-Air Temperature – °C PD R qJA = 178°C/W Figure 4 25 50 75 100 MAXIMUM CONTINUOUS DISSIPATION † vs CASE TEMPERATURE 125 150 Measured with the exposed thermal pad coupled to an infinite heat sink with a thermally conductive compound (the thermal conductivity of the compound is 0.815 W/m°C) The RqJC is 3.5°C/W PWP package TC – Case Temperature – °C – Maximum Continuous Dissipation – WPD † Dissipation rating tables and figures are provided for maintenance of junction temperature at or below absolute maximum temperature of 150°C. It is recommended not to exceed a junction temperature of 125°C. recommended operating conditions MIN MAX UNIT Input voltage, VI 1.8 3.6 V Operating junction temperature, TJ 125 °C

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 9POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics at CI = 10 mF, C1F = C2F = 2.2 mF, CO = 22 mF, TC = –40°C to 85°C, VI = 2 V, VFB = VO and V(ENABLE) = VI (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VI( i ) Minimum start up voltage IO = 0 1.8 VVI(min) Minimum start-up voltage IO = IO (max) 2 V V(UVLO) Input undervoltage lockout threshold TC = 25°C 1.6 1.8 V IO(MAX) Maximum continuous output current TPS60120, TPS60121, TPS60124, TPS60125 200 mA O(MAX) out ut current TPS60122, TPS60123 100 mA TPS60120, TPS60121

1.8 V < VI < 2 V,

0 < IO < IO(MAX) /2, TC = 0°C to 70°C 3.17 3.43 TPS60121, TPS60122, TPS60123 2 V < VI < 3.3 V, 0 < IO < IO(MAX) 3.17 3.43 VO Output voltage TPS60123 0 < IO < IO(MAX) 3.17 3.47 VVO O utput voltage TPS60124 0 < IO < IO(MAX) /2, TC = 0°C to 70°C 2.88 3.12 V TPS60124, TPS60125 2 V < VI < 3.3 V, 0 < IO < IO(MAX) 2.88 3.12 0 < IO < IO(MAX) 2.88 3.3 Ilkg(OUT) Output leakage current VI = 2.4 V, V(ENABLE) = 0 V 1 mA IQ Quiescent current (no-load input current) VI = 2.4 V 55 90 mA IQ(SDN) Shutdown supply current VI = 2.4 V, V(ENABLE) = 0 V 0.05 1 mA fOSC(INT) Internal switching frequency VI = 2.4 V 210 320 450 kHz VIL Enable input voltage low VI = 1.8 V 0.3 x VI V VIH Enable input voltage high VI = 3.6 V 0.7 x VI V Ilkg(ENABLE) Enable input leakage current V(ENABLE) = VGND or VI 0.01 0.1 mA Output load regulation VI = 2.4 V, 1 mA < IO < IO(MAX) TC = 25°C 0.003% /mA Output line regulation 2 V < VI < 3.3 V, IO = 100 mA, TC = 25°C 0.3% /V Short circuit current limit VI < 2.4 V, VO = 0 V, TC = 25°C 115 mA V(LBITRIP) Low battery trip voltageTPS60120, TPS60122, TPS60124 VI = 1.8 V to 2.2 V, Hysteresis 0.8% for rising LBI, TC = 0°C to 70°C 1.15 1.21 1.27 V II(LBI) LBI input current TPS60120, TPS60122, TPS60124 V(LBI) = 1.3 V 100 nA VO(LBO) LBO output voltage low (see Note 2) TPS60120, TPS60122, TPS60124 V(LBI) = 0 V, I(LBO,SINK) = 1 mA 0.4 V Ilkg(LBO) LBO leakage current TPS60120, TPS60122, TPS60124 V(LBI) = 1.3 V, V(LBO) = 3.3 V 0.01 0.1 mA NOTE 2: During start-up the LBO and PG output signal is invalid for the first 500 ms.

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NOTE 2: During start-up the LBO and PG output signal is invalid for the first 500 ms. Figure 5. Circuit Used For Typical Characteristics Measurements

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

IO = 66 mA 100 VI – Input Voltage – V Efficiency – % IO = 116 mA VO = 3.3 V TC = 25°C TPS60122 EFFICIENCY vs INPUT VOLTAGE Figure 10 Figure 11 IO = 50 mA 100 VI – Input Voltage – V Efficiency – % IO = 150 mA IO = 200 mA IO = 100 mA TPS60124 EFFICIENCY vs INPUT VOLTAGE VO = 3.0 V TC = 25°C Figure 12 VI – Input Voltage – V SUPPLY CURRENT vs INPUT VOLTAGE Supply Current – Am IO = 0 mA 100.1 1 10 100 1000 3.30 3.31 3.32 3.33 3.34 3.35 3.36 3.37 3.38 3.39 3.40 VI = 1.8 V VI = 2.4 V VI = 2.7 V VI = 3.6 V Figure 13 IO – Output Current – mA TPS60120 OUTPUT VOLTAGE vs OUTPUT CURRENT VO – Output Voltage – V

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

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2.9 2.92 2.94 2.96 2.98 3.00 3.02 3.04 3.06 3.08 3.10 VI – Input Voltage – V TPS60124 OUTPUT VOLTAGE vs INPUT VOLTAGE VO – Output Voltage – V 1 mA 50 mA 200 mA 100 mA Figure 19 3.3 3.32 3.34 3.36 3.38 3.40 0 400 800 1200 1600 2000 t – TIME – ms OUTPUT VOLTAGE RIPPLE vs TIME VI = 2.4 V IO = 1 mA VO – Output Voltage Ripple – V Figure 20 3.3 3.32 3.34 3.36 3.38 3.40 0 20 40 60 80 100 120 140 160 180 200 t – TIME – ms OUTPUT VOLTAGE RIPPLE vs TIME VI = 2.4 V IO = 10 mA VO – Output Voltage Ripple – V Figure 21 3.3 3.32 3.34 3.36 3.38 3.40 02468 1 0 1 2 1 4 1 6 1 8 2 0 t – TIME – ms OUTPUT VOLTAGE RIPPLE vs TIME VI = 2.4 V IO = 100 mA VO – Output Voltage Ripple – V

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

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–0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 t – Time (Start-Up Timing – ms VO – V VI = 2.4 V R LOAD = 16.5 W ENABLE – V VO – Output Voltage and Enable Signal – V TPS60120 OUTPUT VOLTAGE vs TIME (START-UP TIMING) Figure 26

APPLICATION INFORMATION

The TPS6012x charge pumps require only four external capacitors as shown in the basic application circuit. Their values and types are closely linked to the output current and output noise/ripple requirements. For lowest noise and ripple, low ESR (<0.1 W ) capacitors should be used for input and output capacitors. The input capacitor improves system efficiency by reducing the input impedance. It also stabilizes the input current of the power source. The input capacitor should be chosen according to the power supply used and the distance from the power source to the converter IC. The input capacitor also has an impact on the output ripple requirements. The lower the ESR of the input capacitor C i, the lower is the output ripple. Ci is recommended to be about two to four times as large as C(xF). The output capacitor (CO ) can be selected from 5-times to 50-times larger than C(xF), depending on the ripple tolerance. The larger CO and the lower its ESR, the lower will be the output voltage ripple. Ci and CO can be either ceramic or low-ESR tantalum; aluminum capacitors are not recommended.

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 17POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 capacitor selection (continued) Generally, the flying capacitors C(xF) will be the smallest. Only ceramic capacitors are recommended because they are low ESR and because they retain their capacitance at the switching frequency. Because the device regulates the output voltage with the pulse-skip technique, a larger flying capacitor will lead to a higher output voltage ripple if the size of the output capacitor is not increased. Be aware that, depending on the material used to manufacture them, ceramic capacitors might lose their capacitance over temperature and voltage. Ceramic capacitors of type X7R or X5R material will keep their capacitance over temperature and voltage, whereas Z5U or Y5V-type capacitors will decrease in capacitance. Table 2 lists recommended capacitor values. Table 2. Recommended Capacitor Values The TPS6012x devices are charge pumps that regulate the output voltage using the pulse-skip operating mode. of tantalum capacitors is indirectly proportional to the physical size of the capacitor. recommended ceramic capacitors. ripple due to their typically lower ESR.

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

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capacitor selection (continued) Table 3. Recommended Capacitors NOTE: Case code compatibility with EIA 535BAAC and CECC30801 molded chips. Table 4. Recommended Capacitor Manufacturers package power-dissipation limits and deratings.

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

20 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

paralleling of two TPS6012x to deliver 400-mA total output current Two TPS6012x devices can be connected in parallel to yield higher load currents. The circuit of Figure 29 can deliver up to 400 mA at an output voltage of 3.3 V. The devices can share the output capacitors, but each one requires its own transfer capacitors and input capacitor. If both a TPS60120 and a TPS60121 are used, it is possible to monitor the battery voltage with the TPS60120 using the low-battery comparator function and to supervise the output voltage with the TPS60121 using the power-good comparator. Make the layout of the charge pumps as similar as possible, and position the output capacitor the same distance from both devices. IN IN LBI C1+ C1– ENABLE PGND GND OUT OUT FB LBO C2+ C2– C O 47 mF Ci 10 mF Output

3.3 V, 400 mA

2.2 mF 2.2 mF 357 kW 732 kW Input 1.8 V to 3.6 V Off/On IN IN NC C1+ C1– ENABLE PGND GND OUT OUT FB PG C2+ C2– 2.2 mF 2.2 mF C i 10 mFR3 1 MW Low Battery Warning Power-Good Signal 1 MW TPS60120 TPS60121 Figure 29. Paralleling of Two TPS6012x Charge Pumps

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 21POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TPS6012x operated with ultralow quiescent current Because the output of the TPS6012x is isolated from the input when the devices are disabled, and because the internal resistive divider is disconnected in shutdown, an ultralow quiescent current mode can be implemented. In this mode, the output voltage is sustained because the converter is periodically enabled to refresh the output capacitor. The necessary external control signal that is applied to the ENABLE pin is generated from a microcontroller like the ultralow power microcontroller MSP430. For a necessary supply current for the system of 1 mA and a minimum supply voltage of 3 V with a 22-mF output capacitor, the refresh has to be done after a maximum of 3.5 ms. Longer refresh periods can be achieved with a larger output capacitor. IN IN LBI C1+ C1– ENABLE PGND GND OUT OUT FB LBO C2+ C2– 22 mF C i 10 mF Output

3.3 V, 100 mA

2.2 mF 2.2 mF Input 1.8 V to 3.6 V ON OFF 1 mF 1 MW 1 MW I O MCU e.g. MSP430 TPS60122 Figure 30. TPS60122 in UltraLow Quiescent Current Mode one solution to this problem. Figure 31. Block Diagram of the Regulated Discharge of the Output Capacitor

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000

22 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

For more application information see: /C0068PowerPAD  Application Report, Literature Number SLMA002 /C0068TPS6010x/TPS6011x Charge Pump Application Report, Literature Number SLVA070 /C0068Designer Note Page: Powering the TMS320C5420 Using the TPS60100, TPS76918, and the TPS3305-18, Literature Number SLVA082. device family products Other devices in this family are: PART NUMBER DATASHEET LITERATURE CODE TPS60100 SLVS213B Regulated 3.3-V, 200-mA low-noise charge pump dc-dc converter TPS60101 SLVS214A Regulated 3.3-V, 100-mA low-noise charge pump dc-dc converter TPS60110 SLVS215A Regulated 5-V, 300-mA low-noise charge pump dc-dc converter TPS60111 SLVS216A Regulated 5-V, 150-mA low-noise charge pump dc-dc converter TPS60130 SLVS258 Regulated 5-V, 300-mA high efficiency charge pump dc-dc converter with low-battery comparator TPS60131 SLVS258 Regulated 5-V, 300-mA high efficiency charge pump dc-dc converter with power-good comparator TPS60132 SLVS258 Regulated 5-V, 150-mA high efficiency charge pump dc-dc converter with low-battery comparator TPS60133 SLVS258 Regulated 5-V, 150-mA high efficiency charge pump dc-dc converter with power-good comparator

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125 REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000 23POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA PWP (R-PDSO-G) PowerPAD  PLASTIC SMALL-OUTLINE 4073225/F 10/98 0,50 0,75 0,25 0,15 NOM Thermal Pad (See Note D) Gage Plane 2824 7,70 7,90 6,40 6,60 9,60 9,80 6,60 6,20 0,19 4,50 4,30 0,15 A 0,30 1,20 MAX 1614 5,10 4,90 PINS 4,90 5,10 DIM A MIN A MAX 0,05 Seating Plane 0,65 0,10 M0,10 0°–8°

20 PINS SHOWN

NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusions. D. The package thermal performance may be enhanced by bonding the thermal pad to an external thermal plane. This pad is electrically and thermally connected to the backside of the die and possibly selected leads. E. Falls within JEDEC MO-153 PowerPAD is a trademark of Texas Instruments Incorporated.

PWP (R-PDSO-G20) www.ti.com THERMAL PAD MECHANICAL DATA PowerPAD™ PLASTIC SMALL-OUTLINE

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) TPS60120PWP ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60120PWPG4 ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60120PWPR ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60120PWPRG4 ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60121PWP ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60121PWPR ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60121PWPRG4 ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60122PWP ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60122PWPG4 ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60122PWPR ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60122PWPRG4 ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60123PWP ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60123PWPG4 ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60123PWPR ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60123PWPRG4 ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60124PWP ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60124PWPR ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60124PWPRG4 ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60125PWP ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60125PWPG4 ACTIVE HTSSOP PWP 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60125PWPR ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS60125PWPRG4 ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-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. PACKAGE OPTION ADDENDUM www.ti.com 8-Aug-2005 Addendum-Page 1

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/productcontentfor 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. 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. PACKAGE OPTION ADDENDUM www.ti.com 8-Aug-2005 Addendum-Page 2

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