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 (Max) (V) 5.5 Vout (Min) (V) 1.2 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).

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Technical documentation

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Type Title Date
* Data sheet TPS6302x High Efficiency Single Inductor Buck-boost Converter with 4-A Switches datasheet (Rev. I) Aug. 22, 2019
Application note Different Methods to Drive LEDs Using TPS63XXX Buck-Boost Converters (Rev. D) Aug. 04, 2021
Application note A Topical Index of TI Low-Power Buck-Boost Converter Application Notes (Rev. A) Jun. 09, 2021
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) Jun. 09, 2021
Application note Improving Load Transient Response for Controlled Loads Sep. 12, 2019
Application note Using Non-Inverting Buck-Boost Converter for Voltage Stabilization Aug. 01, 2019
Application note Buck-Boost Converters Solving Power Challenges in Optical Modules May 13, 2019
Technical article How to prevent battery over discharge by using a precise threshold voltage enable pin Jan. 31, 2019
Application note Supercapacitor backup power supply with TPS63802 Jan. 21, 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 Easy supercap backup power for smart grid Jan. 27, 2016
Application note TPS63020Q Pin FMEA Oct. 07, 2015
Test report PMP9766 Test Results Sep. 22, 2015
Technical article Simple circuit drives TECs Jul. 13, 2015
Application note Low-power TEC driver Nov. 18, 2014
Technical article Build it and they will come Jun. 16, 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
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
User guide TPS63020EVM-487 User's Guide Apr. 19, 2010
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

EVALUATION BOARD Download
document-generic User guide
49
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 MODEL Download
SLIM135A.ZIP (82 KB) - PSpice Model
SIMULATION MODEL Download
SLIM154.TSC (1688 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLIM155.ZIP (49 KB) - TINA-TI Spice Model
SIMULATION TOOL 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 TOOL Download
SLVC808A.ZIP (1889 KB)
GERBER FILE Download
SLVC313.ZIP (186 KB)

Reference designs

REFERENCE DESIGNS Download
Mobile Point of Sale (mPOS) Power Reference Design
TIDA-00818 The TIDA-00818 is 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 (...)
document-generic Schematic
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
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

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  • MSL rating/Peak reflow
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  • Qualification summary
  • Ongoing reliability monitoring

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