Product details

Vin (Min) (V) 2.65 Vin (Max) (V) 4.85 Vout (Min) (V) 5 Vout (Max) (V) 5 Switch current limit (Typ) (A) 3.6 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 3500 Switching frequency (Max) (kHz) 3500 Iq (Typ) (mA) 0.02 Features Enable, Light Load Efficiency, Load Disconnect Duty cycle (Max) (%) 100 Operating temperature range (C) -40 to 85 Rating Catalog
Vin (Min) (V) 2.65 Vin (Max) (V) 4.85 Vout (Min) (V) 5 Vout (Max) (V) 5 Switch current limit (Typ) (A) 3.6 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 3500 Switching frequency (Max) (kHz) 3500 Iq (Typ) (mA) 0.02 Features Enable, Light Load Efficiency, Load Disconnect Duty cycle (Max) (%) 100 Operating temperature range (C) -40 to 85 Rating Catalog
DSBGA (YFF) 9 2 mm² 1.346 x 1.246
  • 93% Efficiency at 3.5-MHz Operation
  • 21-µA Quiescent Current in Standby Mode
  • 37-µA Quiescent Current in Normal Operation
  • Wide VIN Range From 2.3 V to 5.5 V
  • VIN ≥ VOUT Operation
  • IOUT ≥ 800 mA at VOUT= 4.5 V, VIN ≥ 2.65 V
  • IOUT ≥ 1000 mA at VOUT = 5.0 V, VIN ≥ 3.3 V
  • IOUT ≥ 1500 mA (Peak) at VOUT = 5.0 V, VIN ≥ 3.3 V
  • ±2% Total DC Voltage Accuracy
  • Light-Load PFM Mode
  • Selectable Standby Mode or True Load
    Disconnect During Shutdown
  • Thermal Shutdown and Overload Protection
  • Only Three Surface-Mount External Components
    Required
  • Total Solution Size < 25 mm2
  • 9-Pin NanoFree™ (CSP) Packaging
  • 93% Efficiency at 3.5-MHz Operation
  • 21-µA Quiescent Current in Standby Mode
  • 37-µA Quiescent Current in Normal Operation
  • Wide VIN Range From 2.3 V to 5.5 V
  • VIN ≥ VOUT Operation
  • IOUT ≥ 800 mA at VOUT= 4.5 V, VIN ≥ 2.65 V
  • IOUT ≥ 1000 mA at VOUT = 5.0 V, VIN ≥ 3.3 V
  • IOUT ≥ 1500 mA (Peak) at VOUT = 5.0 V, VIN ≥ 3.3 V
  • ±2% Total DC Voltage Accuracy
  • Light-Load PFM Mode
  • Selectable Standby Mode or True Load
    Disconnect During Shutdown
  • Thermal Shutdown and Overload Protection
  • Only Three Surface-Mount External Components
    Required
  • Total Solution Size < 25 mm2
  • 9-Pin NanoFree™ (CSP) Packaging

The TPS6125x device provides a power supply solution for battery-powered portable applications. Intended for low-power applications, the TPS6125x supports up to 800-mA load current from a battery discharged as low as 2.65V and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 3.15 V to 5.0 V.

The TPS6125x operates at a regulated 3.5-MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 37 µA (typ) during light load operation.

In addition, the TPS6125x device can also maintain its output biased at the input voltage level. In this mode, the synchronous rectifier is current limited allowing external load (e.g. audio amplifier) to be powered with a restricted supply. In this mode, the quiescent current is reduced to 21 µA. During shutdown, the load is completely disconnected from the battery. Input current in shutdown mode is less than 1 µA (typ), which maximizes battery life.

The TPS6125x offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size.

The TPS6125x device provides a power supply solution for battery-powered portable applications. Intended for low-power applications, the TPS6125x supports up to 800-mA load current from a battery discharged as low as 2.65V and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 3.15 V to 5.0 V.

The TPS6125x operates at a regulated 3.5-MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 37 µA (typ) during light load operation.

In addition, the TPS6125x device can also maintain its output biased at the input voltage level. In this mode, the synchronous rectifier is current limited allowing external load (e.g. audio amplifier) to be powered with a restricted supply. In this mode, the quiescent current is reduced to 21 µA. During shutdown, the load is completely disconnected from the battery. Input current in shutdown mode is less than 1 µA (typ), which maximizes battery life.

The TPS6125x offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size.

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Technical documentation

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Type Title Date
* Data sheet TPS6125x 3.5-MHz High Efficiency Step-Up Converter In Chip Scale Packaging datasheet (Rev. G) 16 Jun 2016
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article Four tips to debug a boost converter 29 Nov 2016
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 03 May 2016
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. C) 08 Jan 2014
User guide TPS6125xEVM-766, 3.5-MHZ HIGH EFFICIENCY STEP-UP CONVERTER IN CHIP SCALE 30 May 2012
Analog design journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

Design & development

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Evaluation board

TPS61253EVM-766 — TPS61253 Chip Scale step-up dc-dc converters, 3.5-MHz high efficiency Evaluation Module

The TPS6125XEVM-766 enables test and evaluation of the Texas Instruments' TPS61253, TPS61258 and TPS61259 (TPS6125x) devices, a series of 3.5-MHz high efficiency, fixed output voltages up to 5.1-V, Chip Scale step-up dc-dc converters. The user's guide for this EVM includes EVM specifications, the (...)
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TPS61253 Unencrypted PSpice Transient Model Package (Rev. A)

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TPS61253 TINA-TI Transient Reference Design

SLVM685.TSC (147 KB) - TINA-TI Reference Design
Simulation model

TPS61253 TINA-TI Transient Spice Model

SLVM686.ZIP (52 KB) - TINA-TI Spice Model
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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