TPS63021

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High Efficiency Single Inductor Buck-Boost Converter with 4A Switch

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Product details

Parameters

Topology Buck-Boost Vin (Min) (V) 1.8 Vin (Max) (V) 5.5 Vout (Max) (V) 3.3 Vout (Min) (V) 3.3 Duty cycle (Max) (%) 100 Features Enable, Frequency Synchronization, Light Load Efficiency, Load Disconnect, Power Good, Synchronous Rectification, UVLO Fixed Switch current limit (Typ) (A) 4 Switching frequency (Min) (kHz) 2200 Switching frequency (Max) (kHz) 2600 Iq (Typ) (mA) 0.025 Rating Catalog Iout (Max) (A) 2 Operating temperature range (C) -40 to 125 open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)

Package | Pins | Size

VSON (DSJ) 14 12 mm² 3 x 4 open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)

Features

  • Input voltage range: 1.8 V to 5.5 V
  • Adjustable output voltage: 1.2 V to 5.5 V
  • Output current for VIN > 2.5 V, VOUT = 3.3 V: 2 A
  • High efficiency over the entire load range
    • Operating quiescent current: 25 µA
    • Power save mode with mode selection
  • Average current mode buck-boost architecture
    • Automatic transition between modes
    • Fixed frequency operation at 2.4 MHz
    • Synchronization possible
  • Power good output
  • Safety and robust operation features
    • Overtemperature, overvoltage protection
    • Load disconnect during shutdown
  • Create a custom design using the

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Description

The TPS6302x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, a one-cell Li-ion or Li-polymer battery, supercapacitors or other supply rails. Output currents up to 3 A are supported. When using batteries, they can be discharged down to below 2 V. 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 4 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 is disconnected from the battery.

The TPS6302x devices operate over a free air temperature range of –40°C to 85°C. The devices are packaged in a 14-pin VSON package measuring 3 mm × 4 mm (DSJ).

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
* Datasheet TPS6302x High Efficiency Single Inductor Buck-boost Converter with 4-A Switches datasheet (Rev. I) Aug. 22, 2019
Application notes Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters Apr. 22, 2020
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
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

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Design tools & simulation

SIMULATION MODELS Download
SLIM141A.ZIP (77 KB) - PSpice Model
SIMULATION MODELS Download
SLIM273.ZIP (49 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLIM274.TSC (670 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
SLVC808A.ZIP (1889 KB)

CAD/CAE symbols

Package Pins Download
VSON (DSJ) 14 View options

Ordering & quality

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