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) 0.6 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 3500 Switching frequency (Max) (kHz) 3500 Iq (Typ) (mA) 0.03 Features Enable, Light Load Efficiency, Load Disconnect Duty cycle (Max) (%) 100 Operating temperature range (C) -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) 0.6 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 3500 Switching frequency (Max) (kHz) 3500 Iq (Typ) (mA) 0.03 Features Enable, Light Load Efficiency, Load Disconnect Duty cycle (Max) (%) 100 Operating temperature range (C) -40 to 85 Rating Catalog
DSBGA (YFF) 6 0 mm² 1.298 x .896 WSON (DRV) 6 4 mm² 2 x 2
  • Efficiency > 90% at Nominal Operating Conditions
  • Total DC Output Voltage Accuracy 5.0 V±2%
  • Typical 30-µA Quiescent Current
  • Best in Class Line and Load Transient
  • Wide VIN Range From 2.3 V to 5.5 V
  • Output Current up to 450 mA
  • Automatic PFM/PWM Mode Transition
  • Low Ripple Power Save Mode for Improved
    Efficiency at Light Loads
  • Internal Softstart, 250-μs Typical Start-Up Time
  • 3.5-MHz Typical Operating Frequency
  • Load Disconnect During Shutdown
  • Current Overload and Thermal Shutdown
    Protection
  • Three Surface-Mount External Components
    Required (One MLCC Inductor, Two Ceramic
    Capacitors)
  • Total Solution Size <13 mm2
  • Available in a 6-Pin DSBGA and 2-mm × 2-mm
    WSON Package
  • Efficiency > 90% at Nominal Operating Conditions
  • Total DC Output Voltage Accuracy 5.0 V±2%
  • Typical 30-µA Quiescent Current
  • Best in Class Line and Load Transient
  • Wide VIN Range From 2.3 V to 5.5 V
  • Output Current up to 450 mA
  • Automatic PFM/PWM Mode Transition
  • Low Ripple Power Save Mode for Improved
    Efficiency at Light Loads
  • Internal Softstart, 250-μs Typical Start-Up Time
  • 3.5-MHz Typical Operating Frequency
  • Load Disconnect During Shutdown
  • Current Overload and Thermal Shutdown
    Protection
  • Three Surface-Mount External Components
    Required (One MLCC Inductor, Two Ceramic
    Capacitors)
  • Total Solution Size <13 mm2
  • Available in a 6-Pin DSBGA and 2-mm × 2-mm
    WSON Package

The TPS6124x device is a highly efficient synchronous step-up DC-DC converter optimized for products powered by either a three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-Polymer battery. The TPS6124x supports output currents up to 450 mA. The TPS61240 has an input valley current limit of 500 mA, and the TPS61241 has an input valley current of 600 mA.

With an input voltage range of 2.3 V to 5.5 V, the device supports batteries with extended voltage range and are ideal to power portable applications like mobile phones and other portable equipment. The TPS6124x boost converter is based on a quasi-constant on-time valley current mode control scheme.

The TPS6124x presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the TPS6124x is shut down.

During light loads the device will automatically pulse skip allowing maximum efficiency at lowest quiescent currents. In the shutdown mode, the current consumption is reduced to less than 1 µA.

TPS6124x allows the use of small inductors and capacitors to achieve a small solution size. During shutdown, the load is completely disconnected from the battery. The TPS6124x is available in a 6-pin DSBGA and 2-mm × 2-mm WSON package.

The TPS6124x device is a highly efficient synchronous step-up DC-DC converter optimized for products powered by either a three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-Polymer battery. The TPS6124x supports output currents up to 450 mA. The TPS61240 has an input valley current limit of 500 mA, and the TPS61241 has an input valley current of 600 mA.

With an input voltage range of 2.3 V to 5.5 V, the device supports batteries with extended voltage range and are ideal to power portable applications like mobile phones and other portable equipment. The TPS6124x boost converter is based on a quasi-constant on-time valley current mode control scheme.

The TPS6124x presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the TPS6124x is shut down.

During light loads the device will automatically pulse skip allowing maximum efficiency at lowest quiescent currents. In the shutdown mode, the current consumption is reduced to less than 1 µA.

TPS6124x allows the use of small inductors and capacitors to achieve a small solution size. During shutdown, the load is completely disconnected from the battery. The TPS6124x is available in a 6-pin DSBGA and 2-mm × 2-mm WSON package.

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Technical documentation

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Type Title Date
* Data sheet TPS6124x 3.5-MHz High Efficiency Step-Up Converter datasheet (Rev. D) 15 Dec 2015
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note QFN and SON PCB Attachment (Rev. B) 24 Aug 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Application note Five Steps to a Good PCB Layout of the Boost Converter 03 May 2016
Test report Power Management Reference Design for a Wearable Device with Wireless Charging (Rev. A) 14 Apr 2016
Technical article How to design wearables that are smaller and go longer between charges 01 Oct 2015
Application note Design of UVLO for LM27313 (Rev. B) 08 Apr 2014
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. C) 08 Jan 2014
Analog design journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011
User guide TPS61240EVM-360 User's Guide 29 May 2009

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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Evaluation board

TPS61240EVM-360 — TPS61240EVM-360 Evaluation Module

The TPS61240EVM-260 facilitates evaluation of the TPS61240 IC. There are three circuits on the EVM:

CKT1 will demonstrate the TPS61240DRV (SON) package.

CKT2 will demonstrate the TPS61240YFF (WCSP) package in a small layout.

CKT3 will demonstrate the TPS61240YFF operating in a diode OR configuration.

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Limit: 5
Simulation model

Unecrypted TPS61240 PSpice Transient Model Package (Rev. A)

SLVMAT6A.ZIP (79 KB) - PSpice Model
Simulation tool

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

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Reference designs

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Package Pins Download
DSBGA (YFF) 6 View options
WSON (DRV) 6 View options

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