TPS63020

ACTIVE

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

Product details

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 Iout (Max) (A) 2 Rating Catalog Operating temperature range (C) -40 to 125
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 Iout (Max) (A) 2 Rating Catalog Operating temperature range (C) -40 to 125
VSON (DSJ) 14 12 mm² 3 x 4
  • 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
  • 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

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).

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) 22 Aug 2019
Application note Different Methods to Drive LEDs Using TPS63XXX Buck-Boost Converters (Rev. D) 04 Aug 2021
Application note A Topical Index of TI Low-Power Buck-Boost Converter Application Notes (Rev. A) 09 Jun 2021
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) 09 Jun 2021
Application note Improving Load Transient Response for Controlled Loads 12 Sep 2019
Application note Using Non-Inverting Buck-Boost Converter for Voltage Stabilization 01 Aug 2019
Application note Buck-Boost Converters Solving Power Challenges in Optical Modules 13 May 2019
Technical article How to prevent battery over discharge by using a precise threshold voltage enable pin 31 Jan 2019
Application note Supercapacitor backup power supply with TPS63802 21 Jan 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Application note QFN and SON PCB Attachment (Rev. B) 24 Aug 2018
Application note Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) 09 Jul 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article Easy supercap backup power for smart grid 27 Jan 2016
Application note TPS63020Q Pin FMEA 07 Oct 2015
Test report PMP9766 Test Results 22 Sep 2015
Technical article Simple circuit drives TECs 13 Jul 2015
Application note Low-power TEC driver 18 Nov 2014
Technical article Build it and they will come 16 Jun 2014
Application note Extending the Soft Start Time in the TPS63010 Buck-Boost Converter 05 Dec 2012
Analog design journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011
Analog design journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011
User guide TPS63020EVM-487 User's Guide 19 Apr 2010
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006
Application note Dynamically Adjustable Output Using the TPS63000 15 Aug 2006

Design & development

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

Evaluation board

TPS63020EVM-487 — Evaluation Module Board for TPS63020 Buck-Boost Converter with 4A Switch

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.
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Simulation model

TPS63020 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM135A.ZIP (82 KB) - PSpice Model
Simulation model

TPS63020 TINA-TI Transient Reference Design

SLIM154.TSC (1688 KB) - TINA-TI Reference Design
Simulation model

TPS63020 TINA-TI Transient Spice Model

SLIM155.ZIP (49 KB) - TINA-TI Spice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Calculation tool

Battery Lifetime Estimator (Rev. A)

SLVC808A.ZIP (1889 KB)
Gerber file

HPA487A Gerber Files

SLVC313.ZIP (186 KB)
Reference designs

TIDA-00818 — Mobile Point of Sale (mPOS) Power Reference Design

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 (...)
Reference designs

PMP9766 — Supercapacitor Backup Power Supply with Active Cell Balancing Reference Design

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 (...)
Reference designs

PMP9759 — Low Power TEC Driver Reference Design

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 (...)
Package Pins Download
VSON (DSJ) 14 View options

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