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TPS63811

ACTIVE

2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling

Product details

Topology Buck-Boost Vin (min) (V) 2.2 Vin (max) (V) 5.5 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Duty cycle (max) (%) 100 Features Dynamic Voltage Scaling, Enable, I2C interface, Light Load Efficiency, Load Disconnect, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO Fixed Switch current limit (typ) (A) 5.8 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 3100 Iq (typ) (mA) 0.013 Iout (max) (A) 2.5 Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter
Topology Buck-Boost Vin (min) (V) 2.2 Vin (max) (V) 5.5 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Duty cycle (max) (%) 100 Features Dynamic Voltage Scaling, Enable, I2C interface, Light Load Efficiency, Load Disconnect, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO Fixed Switch current limit (typ) (A) 5.8 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 3100 Iq (typ) (mA) 0.013 Iout (max) (A) 2.5 Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter
DSBGA (YFF) 15 3.08000000000000022 mm² 1.4000000000000001 x 2.2
  • Input voltage range: 2.2 V to 5.5 V
  • Output voltage range: 1.8 V to 5.2 V
    • I2C-configurable during operation and shutdown
    • VSEL pin to toggle between two output voltage presets
  • Output current
    • Up to 2.5 A for VI ≥ 2.5 V, VO = 3.3 V
    • Up to 2.5 A for VI ≥ 2.8 V, VO = 3.5 V
  • High efficiency over entire load range
    • Low 13-µA operating quiescent current
    • Automatic power save mode and forced PWM mode (I2C-configurable)
  • Peak current mode buck-boost architecture
    • Defined transitions between buck, buck-boost and boost operation
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature and overvoltage protection
    • True load disconnect during shutdown
    • Forward and backward current limit
  • Two device options:
    • TPS63810: Pre-programmed output voltages (3.3 V, 3.45 V)
    • TPS63811: Program output voltages prior to start-up
  • Solution size of < 20 mm2 with only four external components
  • Input voltage range: 2.2 V to 5.5 V
  • Output voltage range: 1.8 V to 5.2 V
    • I2C-configurable during operation and shutdown
    • VSEL pin to toggle between two output voltage presets
  • Output current
    • Up to 2.5 A for VI ≥ 2.5 V, VO = 3.3 V
    • Up to 2.5 A for VI ≥ 2.8 V, VO = 3.5 V
  • High efficiency over entire load range
    • Low 13-µA operating quiescent current
    • Automatic power save mode and forced PWM mode (I2C-configurable)
  • Peak current mode buck-boost architecture
    • Defined transitions between buck, buck-boost and boost operation
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature and overvoltage protection
    • True load disconnect during shutdown
    • Forward and backward current limit
  • Two device options:
    • TPS63810: Pre-programmed output voltages (3.3 V, 3.45 V)
    • TPS63811: Program output voltages prior to start-up
  • Solution size of < 20 mm2 with only four external components

The TPS63810 and TPS63811 are high efficiency, high output current buck-boost converters fully programmable through I2C. Depending on the input voltage, they automatically operate in boost, buck or in a novel 4-cycle buck-boost mode when the input voltage is approximately equal to the output voltage.

The transitions between modes happen at defined thresholds and avoid unwanted toggling within the modes to reduce output voltage ripple.

Two registers, accessible through I2C, set the output voltage, and a VSEL pin selects which output voltage register is active. Thus the devices can support dynamic voltage scaling. If the output voltage register is changed during operation or the VSEL pin is toggled, the device transits in a defined, programmable ramp-rate.

The TPS63810 and TPS63811 are high efficiency, high output current buck-boost converters fully programmable through I2C. Depending on the input voltage, they automatically operate in boost, buck or in a novel 4-cycle buck-boost mode when the input voltage is approximately equal to the output voltage.

The transitions between modes happen at defined thresholds and avoid unwanted toggling within the modes to reduce output voltage ripple.

Two registers, accessible through I2C, set the output voltage, and a VSEL pin selects which output voltage register is active. Thus the devices can support dynamic voltage scaling. If the output voltage register is changed during operation or the VSEL pin is toggled, the device transits in a defined, programmable ramp-rate.

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Technical documentation

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Type Title Date
* Data sheet TPS63810 and TPS63811 – 2.5-A Buck-Boost Converters with I2C Interface datasheet (Rev. C) PDF | HTML 20 Feb 2020
Application note 4스위치 벅 부스트 전력 단계의 기본 계산 (Rev. C) PDF | HTML 02 Oct 2023
Application note Selecting a DC/DC Converter for Maximum Battery Life in Pulsed-Load Applications (Rev. A) 26 Jul 2021
Application note A Topical Index of TI Low-Power Buck-Boost Converter Application Notes (Rev. A) PDF | HTML 09 Jun 2021
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) PDF | HTML 09 Jun 2021
Certificate TPS63811EVM EU Declaration of Conformity (DoC) 17 Apr 2020
EVM User's guide TPS6381xEVM User's Guide (Rev. A) 16 Oct 2019
Application brief Improve Efficiency in TWS Earbuds with Buck-Boost Converter 18 Sep 2019
Application note Using Non-Inverting Buck-Boost Converter for Voltage Stabilization 01 Aug 2019
Application brief Buck-boost Converter Battery Life Time Estimation for Wireless Network Cameras (Rev. A) 28 May 2019
Application brief Buck-Boost Converters Solving Power Challenges in Optical Modules 13 May 2019
Application brief Precise Delayed Start-up with Precise Threshold Enable-pin 15 Apr 2019
Application brief Prevent Battery Overdischarge with Precise Threshold Enable Pin 02 Apr 2019
Application brief Supercapacitor backup power supply with TPS63802 21 Jan 2019
Application note Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) 09 Jul 2018

Design & development

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

Evaluation board

BOOSTXL-TECDRV — BoosterPack™ featuring TPS63810 for driving a TEC module

The BOOSXL-TECDRV BoosterPack™ allows users to evaluate the Texas Instruments TPS63810 buck-boost converter as a driver for a thermoelectric cooling (TEC) module. The TPS63810 is a high efficiency, high output current buck-boost converter programmable through I²C interface. The (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS63811EVM — TPS63811 high-efficiency, high output current, I²C controlled, buck-boost converter EVM

The TPS63811EVM is designed to help the users easily evaluate and test the operation and functionality of the TPS63811 buck-boost converter. The EVM operates from input voltage between 2.2 V and 5.5 V, and can output voltage from 1.825 V to 5 V, with output current up to 2.5 A in buck mode and up (...)
User guide: PDF
Not available on TI.com
GUI for evaluation module (EVM)

SLVC782 TPS6381xEVM GUI Windows

Supported products & hardware

Supported products & hardware

Products
Buck-boost, inverting & split-rail converters (integrated switch)
TPS63810 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling TPS63811 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling
Hardware development
Evaluation board
TPS63810EVM TPS63810 high-efficiency, high output current, I²C controlled, buck-boost converter EVM TPS63811EVM TPS63811 high-efficiency, high output current, I²C controlled, buck-boost converter EVM
GUI for evaluation module (EVM)

SLVC783 TPS6381xEVM GUI Linux

Supported products & hardware

Supported products & hardware

Products
Buck-boost, inverting & split-rail converters (integrated switch)
TPS63810 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling TPS63811 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling
Hardware development
Evaluation board
TPS63810EVM TPS63810 high-efficiency, high output current, I²C controlled, buck-boost converter EVM TPS63811EVM TPS63811 high-efficiency, high output current, I²C controlled, buck-boost converter EVM
GUI for evaluation module (EVM)

SLVC784 TPS6381xEVM GUI Mac

Supported products & hardware

Supported products & hardware

Products
Buck-boost, inverting & split-rail converters (integrated switch)
TPS63810 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling TPS63811 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling
Hardware development
Evaluation board
TPS63810EVM TPS63810 high-efficiency, high output current, I²C controlled, buck-boost converter EVM TPS63811EVM TPS63811 high-efficiency, high output current, I²C controlled, buck-boost converter EVM
Calculation tool

SLVC808 Battery Lifetime Estimator

Supported products & hardware

Supported products & hardware

Products
Buck-boost, inverting & split-rail converters (integrated switch)
TPS63000 High efficiency Buck-Boost Converter with 1.8A Current Switches in 3x3 QFN TPS63000-Q1 Automotive 1.8V to 5.5V Input Range, 1.8A High Efficiency Buck/Boost Converter TPS63001 96% Buck-Boost Converter with 1.7A Current Switches, 3.3V fixed Output voltage in 3x3 QFN TPS63002 96% Buck-Boost Converter with 1.7A Current Switches, 5V fixed Output voltage in 3x3 QFN TPS63010 High Efficient Single Inductor Buck-Boost Converter with 2-A Switches TPS63011 High Efficient Single Inductor Buck-Boost Converter with 2-A Switches TPS63012 High Efficient Single Inductor Buck-Boost Converter with 2-A Switches TPS63020 High Efficiency Single Inductor Buck-Boost Converter with 4A Switch TPS63020-Q1 High Efficiency Automotive Single Inductor Buck-Boost Converter with 4A Switch TPS63021 High Efficiency Single Inductor Buck-Boost Converter with 4A Switch TPS63024 High Efficiency 1.5A Single Inductor Buck-Boost Converter TPS630241 High Efficiency 1.5A Single Inductor Buck-Boost Converter TPS630242 High Efficiency 1.5A Single Inductor Buck-Boost Converter TPS630250 4-A switch single-inductor buck-boost converter in 3.7 mm² DSBGA package TPS630251 4A switch Single-Inductor Buck-Boost Converter in WCSP TPS630252 4A switch Single-Inductor Buck-Boost Converter in WCSP TPS63027 High Efficiency 4.5A Switch Single-Inductor Buck-Boost Converter TPS63030 High Efficient Single Inductor Buck-Boost Converter with 1-A Switches TPS63031 High Efficient Single Inductor Buck-Boost Converter with 1-A Switches TPS63036 High Efficient Single Inductor Buck-Boost Converter with 1-A Switches TPS63050 TPS6305x Single Inductor Buck-Boost with 1-A Switches and Adjustable Soft Start TPS63051 Tiny Single Inductor Buck Boost Converter TPS63060 2.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter TPS63060-EP HIGH INPUT VOLTAGE BUCK-BOOST CONVERTER WITH 2-A SWITCH CURRENT TPS63061 2.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter TPS63070 Wide input voltage (2V-16V) buck-boost converter TPS63700 Adjustable, -15V Output Inverting DC/DC Converter in 3x3 QFN TPS63710 Low Noise, 1A Synchronous Inverting Buck Converter in 3x3 WSON Package TPS63802 2-A, high-efficient, 11-µA quiescent current buck-boost converter in QFN/DFN package TPS63805 2-A, high-efficient, 11-µA quiescent current buck-boost converter with tiny solution size TPS63806 2.5-A high-efficient buck-boost converter with optimized load step response in tiny WCSP TPS63807 2A,11-uA quiescent current buck-boost converter TPS63810 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling TPS63811 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling TPS63900 1.8-V to 5.5-V, 75-nA IQ buck-boost converter with input current limit and Dynamic Voltage Scaling
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 (...)
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DSBGA (YFF) 15 View options

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