Product details

Vin (Min) (V) 2.3 Vin (Max) (V) 5.5 Vout (Min) (V) 5 Vout (Max) (V) 5 Switch current limit (Typ) (A) 4 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 3800 Switching frequency (Max) (kHz) 3800 Iq (Typ) (mA) 0.05 Features Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification Duty cycle (Max) (%) 100 Operating temperature range (C) -40 to 125, -40 to 85 Rating Catalog
Vin (Min) (V) 2.3 Vin (Max) (V) 5.5 Vout (Min) (V) 5 Vout (Max) (V) 5 Switch current limit (Typ) (A) 4 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 3800 Switching frequency (Max) (kHz) 3800 Iq (Typ) (mA) 0.05 Features Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification Duty cycle (Max) (%) 100 Operating temperature range (C) -40 to 125, -40 to 85 Rating Catalog
DSBGA (YFF) 9 2 mm² 1.232 x 1.328
  • Wide input voltage range from 2.3 V to 5.5 V
  • Fixed output voltage: 4.5 / 4.7 / 5.0 / 5.2 V
  • Two FETs integrated: 35-mΩ LS-FET, 60-mΩ HS-FET
  • IOUT ≥ 1500-mA continuously at VOUT = 5 V and VIN ≥ 3 V
  • 42-µA quiescent current from input
  • 4-A switching valley current limit
  • 3.8-MHz switching frequency
  • Selectable auto PFM, forced PWM, and ultrasonic mode
  • Support pass-through mode
  • ±2% output voltage accuracy
  • 600-µs soft-start time
  • Hiccup-mode short protection
  • Load disconnection during shutdown
  • Thermal shutdown
  • Total solution size < 25 mm2
  • Create a custom design using the TPS61253A with the WEBENCH® Power Designer
  • Wide input voltage range from 2.3 V to 5.5 V
  • Fixed output voltage: 4.5 / 4.7 / 5.0 / 5.2 V
  • Two FETs integrated: 35-mΩ LS-FET, 60-mΩ HS-FET
  • IOUT ≥ 1500-mA continuously at VOUT = 5 V and VIN ≥ 3 V
  • 42-µA quiescent current from input
  • 4-A switching valley current limit
  • 3.8-MHz switching frequency
  • Selectable auto PFM, forced PWM, and ultrasonic mode
  • Support pass-through mode
  • ±2% output voltage accuracy
  • 600-µs soft-start time
  • Hiccup-mode short protection
  • Load disconnection during shutdown
  • Thermal shutdown
  • Total solution size < 25 mm2
  • Create a custom design using the TPS61253A with the WEBENCH® Power Designer

The TPS6125xA device provides a power supply solution for battery-powered portable applications. With the input voltage ranging from 2.3 V to 5.5 V, the device supports the applications powered by the Li-Ion batteries with the extended voltage range. Different fixed output voltage versions are available of 4.5 V, 4.7 V, 5 V, and 5.2 V. The TPS6125xA supports up to 1500-mA load current from a battery discharged as low as 3 V.

The TPS6125xA operates at typical 3.8-MHz switching frequency. The TPS6125xA can be flexibly configured at the Auto PFM mode, forced PWM mode, or ultrasonic mode. The Auto PFM mode can benefit with the high efficiency at the light load. The forced PWM operation can make the switching frequency be constant crossing the whole load range. The ultrasonic mode keeps the switching frequency always larger than 25 kHz at any load condition to avoid the acoustic noise.

TPS6125xA has a built-in 600-µs soft start to avoid the inrush current at start-up. When the output is shorted, the device enters into the hiccup mode and recovers automatically after the short releases. During the shutdown, the load is completely disconnected from the input end with maximum 1.3-µA current being consumed.

The TPS6125xA device provides a power supply solution for battery-powered portable applications. With the input voltage ranging from 2.3 V to 5.5 V, the device supports the applications powered by the Li-Ion batteries with the extended voltage range. Different fixed output voltage versions are available of 4.5 V, 4.7 V, 5 V, and 5.2 V. The TPS6125xA supports up to 1500-mA load current from a battery discharged as low as 3 V.

The TPS6125xA operates at typical 3.8-MHz switching frequency. The TPS6125xA can be flexibly configured at the Auto PFM mode, forced PWM mode, or ultrasonic mode. The Auto PFM mode can benefit with the high efficiency at the light load. The forced PWM operation can make the switching frequency be constant crossing the whole load range. The ultrasonic mode keeps the switching frequency always larger than 25 kHz at any load condition to avoid the acoustic noise.

TPS6125xA has a built-in 600-µs soft start to avoid the inrush current at start-up. When the output is shorted, the device enters into the hiccup mode and recovers automatically after the short releases. During the shutdown, the load is completely disconnected from the input end with maximum 1.3-µA current being consumed.

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Technical documentation

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Type Title Date
* Data sheet TPS61253A 3.8-MHz, 5-V / 4-A Boost Converter in 1.2-mm x 1.3-mm WCSP datasheet (Rev. D) PDF | HTML 22 Jan 2021
Technical article Make a boost converter quieter 27 Nov 2017
Application note Choosing the Boost With Bypass or Pass Through 27 Jun 2017
EVM User's guide TPS61253AEVM-803 User's Guide 16 Mar 2016

Design & development

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Evaluation board

TPS61253AEVM-803 — Boost Converter Evaluation Module for TPS61253A

With a wide input voltage range of 2.3 V to 5.5 V, the TPS6125xA supports applications powered by Li-Ion batteries with extended voltage range. This device operates at a regulated 3.5-MHz switching frequency. The TPS6125xA can be flexibly configured in the force PWM mode or the PFM mode. The (...)
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Simulation model

TPS61253A Unencrypted PSpice Transient Model Package (Rev. A) TPS61253A Unencrypted PSpice Transient Model Package (Rev. A)

Simulation tool

PSPICE-FOR-TI PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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DSBGA (YFF) 9 View options

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