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TPS61252

ACTIVE

3.5-MHz, 1.5-A, 92% efficient boost converter, adjustable input current Limit, ±20% current accuracy

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Data sheet

TPS61252

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.3 Vin (max) (V) 6 Switching frequency (min) (kHz) 3500 Switching frequency (max) (kHz) 3500 Features Synchronous Rectification Vout (min) (V) 3 Vout (max) (V) 6.5 Iq (typ) (µA) 30 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.3 Vin (max) (V) 6 Switching frequency (min) (kHz) 3500 Switching frequency (max) (kHz) 3500 Features Synchronous Rectification Vout (min) (V) 3 Vout (max) (V) 6.5 Iq (typ) (µA) 30 Duty cycle (max) (%) 100
WSON (DSG) 8 4 mm² 2 x 2
  • Resistor Programmable Input Current Limit
    • ±20% Current Accuracy at 500 mA over
      Full Temperature Range
    • Programmable from 100 mA up to 1500 mA
  • Up to 92% Efficiency
  • VIN Range from 2.3 V to 6.0 V
  • Power Good Indicates Appropriate Output Voltage Level
  • Adjustable Output Voltage up to 6.5 V
  • 100% Duty-Cycle Mode When VIN > VOUT
  • Load Disconnect and Reverse Current Protection
  • Short Circuit Protection
  • Typical Operating Frequency 3.25 MHz
  • Available in a 2-mm × 2-mm WSON-8 Package
  • APPLICATIONS
    • USB Host Supplies from a Single Li-Ion Battery
    • Current Limited Applications
    • Li-Ion Applications
    • Audio Applications
    • RF-PA Buffer

All other trademarks are the property of their respective owners
  • Resistor Programmable Input Current Limit
    • ±20% Current Accuracy at 500 mA over
      Full Temperature Range
    • Programmable from 100 mA up to 1500 mA
  • Up to 92% Efficiency
  • VIN Range from 2.3 V to 6.0 V
  • Power Good Indicates Appropriate Output Voltage Level
  • Adjustable Output Voltage up to 6.5 V
  • 100% Duty-Cycle Mode When VIN > VOUT
  • Load Disconnect and Reverse Current Protection
  • Short Circuit Protection
  • Typical Operating Frequency 3.25 MHz
  • Available in a 2-mm × 2-mm WSON-8 Package
  • APPLICATIONS
    • USB Host Supplies from a Single Li-Ion Battery
    • Current Limited Applications
    • Li-Ion Applications
    • Audio Applications
    • RF-PA Buffer

All other trademarks are the property of their respective owners

The TPS61252 device provides a power supply solution for products powered by either a three-cell alkaline, NiCd or NiMH battery, or an one-cell Li-Ion or Li-polymer battery. The wide input voltage range is ideal to power portable applications like mobile phones or computer peripherals. The device has a resistor programmable (RILIM) input current limit and is suitable for a wide variety of applications.

During light loads, the device automatically enters skip mode (PFM), which allows the converter to maintain the required output voltage, while only drawing 30 µA quiescent current from the battery. This allows maximum efficiency at lowest quiescent currents.

TPS61252 allows the use of small inductors and capacitors to achieve a small solution size. The possibility to reduce the current limit by a external resistor offers the potential use of physically even smaller inductors with lower rated currents to further reduce total solution sizes of the power supply. During shutdown, the load is completely disconnected from the battery. The TPS61252 is available in a 8-pin WSON package measuring 2 mm × 2 mm (DSG).

The TPS61252 device provides a power supply solution for products powered by either a three-cell alkaline, NiCd or NiMH battery, or an one-cell Li-Ion or Li-polymer battery. The wide input voltage range is ideal to power portable applications like mobile phones or computer peripherals. The device has a resistor programmable (RILIM) input current limit and is suitable for a wide variety of applications.

During light loads, the device automatically enters skip mode (PFM), which allows the converter to maintain the required output voltage, while only drawing 30 µA quiescent current from the battery. This allows maximum efficiency at lowest quiescent currents.

TPS61252 allows the use of small inductors and capacitors to achieve a small solution size. The possibility to reduce the current limit by a external resistor offers the potential use of physically even smaller inductors with lower rated currents to further reduce total solution sizes of the power supply. During shutdown, the load is completely disconnected from the battery. The TPS61252 is available in a 8-pin WSON package measuring 2 mm × 2 mm (DSG).
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Technical documentation

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Type Title Date
* Data sheet TPS61252 Tiny 1.5-A Boost Converter With Adjustable Input Current Limit datasheet (Rev. A) PDF | HTML 24 Dec 2014
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Calculating and Measuring the No Load Input Current of the Boost Converter 23 Sep 2016
Application note Five Steps to a Good PCB Layout of the Boost Converter PDF | HTML 03 May 2016
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011
User guide TPS61252 Evaluation Module 26 Aug 2010

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