TPS63020

ACTIVE

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 (Min) (V) 1.2 Vout (Max) (V) 5.5 Switch current limit (Typ) (A) 4 Duty cycle (Max) (%) 100 Features Enable, Frequency Synchronization, Light Load Efficiency, Load Disconnect, Power Good, Synchronous Rectification, UVLO Fixed Switching frequency (Min) (kHz) 2200 Switching frequency (Max) (kHz) 2600 Type Converter Iq (Typ) (mA) 0.05 Rating Catalog Iout (Max) (A) 2 Operating temperature range (C) -40 to 85 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 A Topical Index of TI Low-Power Buck-Boost Converter Application Notes May 11, 2020
Application notes Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters Apr. 22, 2020
Application notes Improving Load Transient Response for Controlled Loads Sep. 12, 2019
Application notes Using Non-Inverting Buck-Boost Converter for Voltage Stabilization Aug. 01, 2019
Application notes Different Methods to Drive LEDs Using TPS63XXX Buck-Boost Converters (Rev. C) Jul. 03, 2019
Application notes Buck-Boost Converters Solving Power Challenges in Optical Modules May 13, 2019
Technical articles How to prevent battery over discharge by using a precise threshold voltage enable pin Jan. 31, 2019
Application notes Supercapacitor backup power supply with TPS63802 Jan. 21, 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
Selection guides Low-Power DC/DC Converter Overview Guide (Rev. D) Feb. 09, 2017
Technical articles Easy supercap backup power for smart grid Jan. 27, 2016
Selection guides Power Solutions for eCall Applications Guide Jan. 12, 2016
Application notes TPS63020Q Pin FMEA Oct. 07, 2015
User guides PMP9766 Test Results Sep. 22, 2015
Technical articles Simple circuit drives TECs Jul. 13, 2015
Application notes Low-power TEC driver Nov. 18, 2014
Technical articles Build it and they will come Jun. 16, 2014
Application notes Extending the Soft Start Time in the TPS63010 Buck-Boost Converter Dec. 05, 2012
Application notes Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
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
User guides TPS63020EVM-487 User's Guide Apr. 19, 2010
Application notes Minimizing Ringing at the Switch Node of a Boost Converter Sep. 15, 2006
Application notes 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

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

Buck-Boost Converter with 4A Switch Evaluation Module Board

The TPS63020EVM-487 evaluation module is a fully assembled and tested circuit for evaluating the TPS63020 Buck-Boost Converter with 4A Switch. The TPS63020EVM-487 operates from a 1.8V to 5.5V supply and provides a 3.3V output.
Features
  • Input voltage: 1.8V to 5.5V
  • Adjustable Vout: 1.2V to 5.5V
  • Switch current rating 4A
  • Dynamic switch current limit
  • Efficiency: >93% over wide Vin range (max)
  • Package: 14-pin QFN , 3mm x 4 mm x 1 mm
  • Operating frequency: 2.4MHz, synchronizable (±20%)
  • Automatic transition between Step Down and Boost Mode
  • Very low (...)

Design tools & simulation

SIMULATION MODELS Download
SLIM135A.ZIP (82 KB) - PSpice Model
SIMULATION MODELS Download
SLIM154.TSC (1688 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLIM155.ZIP (49 KB) - TINA-TI Spice Model
GERBER FILES Download
SLVC313.ZIP (186 KB)

Reference designs

REFERENCE DESIGNS Download
Mobile Point of Sale (mPOS) Power Reference Design
TIDA-00818 — This mobile point of sale (mPOS) reference design features a 1S1P Li-Ion battery architecture to reduce system size and cost. Integrated load switches are used to reduce standby power consumption and maximize battery life to enable the single-cell architecture. A USB Type-C charging port is also (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Supercapacitor Backup Power Supply with Active Cell Balancing Reference Design
PMP9766 This reference design describes a backup power circuit which addresses instantaneous protection against power interruptions by using a buck-boost converter and two stacked supercapacitors. The implementation is based on a completely integrated TPS63020 buck-boost converter circuit enabling a small (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Low Power TEC Driver Reference Design
PMP9759 This reference design details a power management circuit which is capable to source and sink current for driving a thermoelectric cooler (TEC) to control the temperature of sensitive devices, like laser diodes or sensors. It supports a small solution based on a completely integrated buck boost (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
VSON (DSJ) 14 View options

Ordering & quality

Support & training

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