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Product details

Parameters

Topology Buck-Boost Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Vout (Max) (V) 3.3 Vout (Min) (V) 3.3 Duty cycle (Max) (%) 100 Features Adjustable Current Limit, Enable, Light Load Efficiency, Load Disconnect, Power Good, Synchronous Rectification, UVLO Fixed Switch current limit (Typ) (A) 1 Switching frequency (Min) (kHz) 2500 Switching frequency (Max) (kHz) 2500 Iq (Typ) (mA) 0.043 Rating Catalog Iout (Max) (A) 0.5 Operating temperature range (C) -40 to 125 open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)

Package | Pins | Size

DSBGA (YFF) 12 2 mm² 1.726 x 1.326 VQFN-HR (RMW) 12 6 mm² 2.5 x 2.5 open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)

Features

  • Real buck or boost with seamless transition between buck and boost mode
  • 2.5 V to 5.5 V Input voltage range
  • 0.5-A Continuous output current: VIN ≥ 2.5 V,
    VOUT = 3.3 V
  • Adjustable and fixed output voltage version
  • Efficiency > 90% in boost mode and > 95% in buck mode
  • 2.5-MHz Typical switching frequency
  • Adjustable average input current limit
  • Adjustable soft-start time
  • Device quiescent current < 60 µA
  • Automatic power save mode or forced PWM mode
  • Load disconnect during shutdown
  • Overtemperature protection
  • Small 1.6mm x 1.2mm, 12-pin WCSP and 2.5mm x 2.5mm 12-pin HotRod™ QFN package
  • Create a custom design using the:

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Description

The TPS6305x family of devices is a high efficiency, low quiescent-current buck-boost converter, suitable for applications where the input voltage is higher or lower than the output.

Continuous output current can go as high as 500 mA in boost mode and as high as 1 A in buck mode. The maximum average current in the switches is limited to a typical value of 1 A. The TPS6305x family of devices regulate the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage, ensuring seamless transition between modes.

The buck-boost converter is based on a fixed-frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain the highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range.

The PFM/PWM pin allows the user to select between automatic-PFM/PWM mode operation and forced-PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. 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 is disconnected from the battery. The device is packaged in a 12-pin DSBGA and in a 12-pin HotRod package.

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

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 15
Type Title Date
* Datasheet TPS6305x Single Inductor Buck-Boost With 1-A Switches and Adjustable Soft Start datasheet (Rev. D) May 11, 2017
Application notes Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters Apr. 22, 2020
Application notes Buck-boost Converter Battery Life Time Estimation for Wireless Network Cameras (Rev. A) May 28, 2019
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes Understanding Undervoltage Lockout in Power Devices (Rev. A) Sep. 19, 2018
Application notes QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application notes Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) Jul. 09, 2018
User guides USB-C DisplayPort Active Cable Reference Design Aug. 29, 2017
User guides User's Guide for TPS63050EVM-679 Jul. 13, 2015
Technical articles Build it and they will come Jun. 16, 2014
Technical articles How Small is Small? Sep. 03, 2013
User guides User's Guide for TPS63050EVM-180 Jul. 12, 2013
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application notes IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
Application notes Minimizing Ringing at the Switch Node of a Boost Converter Sep. 15, 2006

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

The TPS63050EVM-679 is a customer evaluation module for the TPS63050. The TPS63050 is a small 2.5mm by 2.5mm, RMW package buck-boost regulator with 1A switches. This EVM is set to an output voltage of 3.3V. Being a buck-boost, the input voltage may vary from 2.5V to 5.5V while the EVM maintains the (...)

Features

  • 2.5V to 5.5V Input Voltage Range
  • 500 mA Output Current
  • Adjustable Current Limit

EVALUATION BOARDS Download
document-generic User guide
49
Description
The TPS63051EVM-180 is a customer evaluation module for the TPS63051. The TPS63051 is a small 1.6mm by 1.2mm, WCSP package buck-boost regulator with 1A switches. This IC and board have a fixed output voltage of 3.3V. Being a buck-boost the input voltage may vary from 2.5V to 5.5V while the EVM (...)
Features
  • 2.5V to 5.5V Input Voltage Range
  • 500 mA Output Current
  • Adjustable Current Limit
  • Programmable Soft Start

Design tools & simulation

SIMULATION MODELS Download
SLVM952A.ZIP (42 KB) - PSpice Model
SIMULATION MODELS Download
SLVM998.ZIP (40 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVM999.TSC (165 KB) - TINA-TI Reference Design
SIMULATION TOOLS Download
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 (...)
Features
  • 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
  • (...)
CALCULATION TOOLS Download
SLVC808.ZIP (2169 KB)
GERBER FILES Download
SLVC501.ZIP (317 KB)

Reference designs

REFERENCE DESIGNS Download
USB-C™ to DisplayPort Active Cable Reference Design
TIDA-01620 — The USB-C™ to DisplayPort Active Cable reference design is a framework that can enable DisplayPort video signaling over a USB-C connection. Traditionally, DisplayPort connectors are the only way to transfer DisplayPort video but this connector can be large and are not ideal for small (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Haptic feedback with Bluetooth® low energy and iOS application reference design
TIDA-00266 This reference design features the DRV2605 Eccentric Rotating Mass (ERM) and Linear Resonant Actuator (LRA) Haptic Driver with integrated pre-licensed effect library from Immersion.  The board includes an LRA, alkaline battery pack, and can be programmed and controlled with  the (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
DSBGA (YFF) 12 View options
VQFN-HR (RMW) 12 View options

Ordering & quality

Support & training

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