Home Power management DC/DC switching regulators Charge pumps (inductorless)

TPS60125

ACTIVE

Regulated 3.0-V High Efficiency Charge Pump With Power Good Indicator

A newer version of this product is available

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Same functionality with different pin-out to the compared device
LM2775 ACTIVE 2.7-V to 5.5-VIN, 200-mA output current, 5-V fixed output voltage doubler Smaller solution size, cost-optimized design

Product details

Vin (min) (V) 1.8 Vin (max) (V) 3.6 Vout (min) (V) 3 Vout (max) (V) 3 Iout (max) (A) 0.2 Regulated outputs (#) 1 Switching frequency (min) (kHz) 210 Switching frequency (max) (kHz) 450 Iq (typ) (mA) 0.055 Features Enable, Power good Operating temperature range (°C) -40 to 85 Rating Catalog Type Charge pump
Vin (min) (V) 1.8 Vin (max) (V) 3.6 Vout (min) (V) 3 Vout (max) (V) 3 Iout (max) (A) 0.2 Regulated outputs (#) 1 Switching frequency (min) (kHz) 210 Switching frequency (max) (kHz) 450 Iq (typ) (mA) 0.055 Features Enable, Power good Operating temperature range (°C) -40 to 85 Rating Catalog Type Charge pump
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • High Average Efficiency Over Input Voltage Range Because of Special Switching Topology
  • Minimum 200-mA Output Current From an Input Voltage Range of 1.8-V to 3.6-V
  • Regulated 3.3-V or 3-V ±4% Output Voltage
  • No Inductors Required, Low EMI
  • Only Four External Components Required
  • 55-uA Quiescent Supply Current
  • 0.05-uA Shutdown Current
  • Load Disconnected in Shutdown
  • Integrated Low Battery and Power Good Detectors
  • Evaluation Module Available (TPS60120EVM-142)
  • Applications
    • Applications Powered by Two Battery Cells
    • Portable Instruments
    • Battery-Powered Microprocessor Systems
    • Miniature Equipment
    • Backup-Battery Boost Converters
    • PDAs, Organizers, Laptops
    • MP-3 Portable Audio Players
    • Handheld Instrumentation
    • Medical Instruments (e.g., Glucose Meters)
    • Cordless Phones

PowerPAD is a trademark of Texas Instruments Incorporated.

  • High Average Efficiency Over Input Voltage Range Because of Special Switching Topology
  • Minimum 200-mA Output Current From an Input Voltage Range of 1.8-V to 3.6-V
  • Regulated 3.3-V or 3-V ±4% Output Voltage
  • No Inductors Required, Low EMI
  • Only Four External Components Required
  • 55-uA Quiescent Supply Current
  • 0.05-uA Shutdown Current
  • Load Disconnected in Shutdown
  • Integrated Low Battery and Power Good Detectors
  • Evaluation Module Available (TPS60120EVM-142)
  • Applications
    • Applications Powered by Two Battery Cells
    • Portable Instruments
    • Battery-Powered Microprocessor Systems
    • Miniature Equipment
    • Backup-Battery Boost Converters
    • PDAs, Organizers, Laptops
    • MP-3 Portable Audio Players
    • Handheld Instrumentation
    • Medical Instruments (e.g., Glucose Meters)
    • Cordless Phones

PowerPAD is a trademark of Texas Instruments Incorporated.

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 1uA 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 PowerPADTM package (PWP).

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 1uA 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 PowerPADTM package (PWP).

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Technical documentation

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Type Title Date
* Data sheet Regulated 200-mA High Efficiency Charge Pump DC/DC Converter datasheet (Rev. B) 08 Aug 2000
Application note Optimizing Resistor Dividers at a Comparator (Rev. B) PDF | HTML 30 Apr 2021
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 Jul 2018
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011

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