2.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter


Product details


Topology Buck-Boost Vin (Min) (V) 2.5 Vin (Max) (V) 12 Vout (Max) (V) 8 Vout (Min) (V) 2.5 Duty cycle (Max) (%) 100 Features Enable, Frequency Synchronization, Light Load Efficiency, Load Disconnect, Power Good, Synchronous Rectification, UVLO Fixed Switch current limit (Typ) (A) 2.25 Switching frequency (Min) (kHz) 2200 Switching frequency (Max) (kHz) 2600 Iq (Typ) (mA) 0.03 Rating Catalog Iout (Max) (A) 1.3 Operating temperature range (C) -40 to 85 open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)

Package | Pins | Size

WSON (DSC) 10 9 mm² 3 x 3 open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)


  • Input voltage range: 2.5 V to 12 V
  • Efficiency: Up to 93%
  • Output current at 5 V (VIN < 10 V): 2 A in buck mode
  • Output current at 5 V (VIN > 4 V): 1.3 A in boost mode
  • Automatic transition between step down and boost mode
  • Typical device quiescent current: < 30 µA
  • Fixed and adjustable output voltage options from 2.5 V to 8 V
  • Power save mode for improved efficiency at low output power
  • Forced fixed-frequency operation at 2.4 MHz and synchronization possible
  • Power good output
  • Buck-Boost Overlap Control™
  • Load disconnect during shutdown
  • Overtemperature protection
  • Overvoltage protection

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open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)


The TPS6306x devices provide a power supply solution for products powered by either three-cell up to six-cell alkaline, NiCd or NiMH battery, or a one-cell or dual-cell Li-Ion or Li-polymer battery. Output currents can go as high as 2 A while using a dual-cell Li-Ion or Li-polymer battery, and discharge to 5 V or lower. The buck-boost converter is based on a fixed frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters power save mode to maintain high efficiency over a wide load current range. The power save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 2.25 A. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load disconnects from the battery.

The devices are available in a 3 mm × 3 mm, 10-pin, WSON (DSC) package.

open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)
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Technical documentation

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Type Title Date
* Data sheet TPS6306x High Input Voltage, Buck-Boost Converter With 2-A Switch Current datasheet (Rev. C) Sep. 15, 2020
Application note A Topical Index of TI Low-Power Buck-Boost Converter Application Notes May 11, 2020
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters Apr. 22, 2020
Application note Improving Load Transient Response for Controlled Loads Sep. 12, 2019
Application note Different Methods to Drive LEDs Using TPS63XXX Buck-Boost Converters (Rev. C) Jul. 03, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) Sep. 19, 2018
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application note Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) Jul. 09, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical article Learn how to keep your car battery steady and running longer Mar. 28, 2017
Technical article Providing an orderly shutdown of PLCs May 14, 2015
Technical article Easy SSD backup power Apr. 11, 2015
Application note High-Efficiency Backup Power Supply Dec. 11, 2014
Application note Extending the Soft Start Time in the TPS63010 Buck-Boost Converter Dec. 05, 2012
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
User guide TPS63060EVM-619 Jan. 19, 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application note IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
Application note Minimizing Ringing at the Switch Node of a Boost Converter Sep. 15, 2006
Application note Dynamically Adjustable Output Using the TPS63000 Aug. 15, 2006

Design & development

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

Hardware development

document-generic User guide

The Texas Instruments TPS63060EVM-619 evaluation module is designed to help the user easily evaluate and test the operation and functionality of the TPS63060. The TPS63060EVM-619 uses the TPS63060 adjustable version and is set to 5-V output. The EVM operates with full-rated performance with an input (...)

  • Up to 93% Efficiency
  • 2A/1A Output Current at 5V in Step Down Mode
  • 1.3A Output Current at 5V in Boost Mode (VIN>4V)
  • Automatic Transition Between Step Down and Boost Mode
  • Typical Device Quiescent Current less than 60μA
  • Input Voltage Range: 2.5V to 12V
  • Fixed and Adjustable Output Voltage Options from 2.5V to (...)

Design tools & simulation

SLVM477A.ZIP (39 KB) - PSpice Model
SLVM556.ZIP (44 KB) - TINA-TI Spice Model
SLVM557.TSC (145 KB) - TINA-TI Reference Design
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SLVC808A.ZIP (1889 KB)
SLVC409.ZIP (378 KB)

Reference designs

50-Ohm 2-GHz Oscilloscope Front-end Reference Design
TIDA-00826 This reference design is part of an analog front-end for 50Ω-input oscilloscope application. System designers can readily use this evaluation platform to process input signals from DC to 2 GHz in both frequency-domain and time-domain applications.
document-generic Schematic document-generic User guide
High-Efficiency Backup Power Supply Reference Design
PMP9761 This reference design describes a backup power circuit which addresses instantaneous protection against power interruptions by using a buck-boost converter and a backup capacitor. The implementation is based on a completely integrated TPS63060 buck-boost converter circuit enabling a small total (...)
document-generic Schematic

CAD/CAE symbols

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WSON (DSC) 10 View options

Ordering & quality

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