Home Power management DC/DC switching regulators DC/DC converters
Home
Power management
DC/DC switching regulators
DC/DC converters

TPS63811

ACTIVE

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

Order now
Data sheet

TPS63811

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.2 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Switch current limit (typ) (A) 5.8 Features Dynamic voltage scaling, Enable, I2C interface, Light-load efficiency, Load Disconnect, Output discharge, Power good, Prebias startup, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000013 Duty cycle (max) (%) 100
Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.2 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Switch current limit (typ) (A) 5.8 Features Dynamic voltage scaling, Enable, I2C interface, Light-load efficiency, Load Disconnect, Output discharge, Power good, Prebias startup, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000013 Duty cycle (max) (%) 100
DSBGA (YFF) 15 3.08000000000000022 mm² (— mm × — mm)
  • 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.
filter Find other DC/DC converters
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device.
TPS63901 ACTIVE 5.5-V buck-boost converter with 75-nA operating IQ in WCSP package Lower IQ and smaller size
TPS631010 ACTIVE 3-A peak current high-efficiency ultra-small solution size buck-boost converter Upgraded product with 8-µA IQ and smaller WCSP package
TPS63805 ACTIVE 2-A, high-efficient, 11-µA quiescent current buck-boost converter with tiny solution size Non-I2C replacement
Similar functionality to the compared device.
TPS631000 ACTIVE 1.5-A output current, high-power-density buck-boost converter Upgraded product with 8-uA IQ and smaller SOT package.

Technical documentation

No results found. Please clear your search and try again.
View all 13
Top documentation Type Title Format options Date
* Data sheet TPS63810 and TPS63811 – 2.5-A Buck-Boost Converters with I2C Interface datasheet (Rev. C) PDF | HTML Feb 20, 2020
Application note Selecting a DC/DC Converter for Maximum Battery Life in Pulsed-Load Applications (Rev. A) Jul 26, 2021
Application note A Topical Index of TI Low-Power Buck-Boost Converter Application Notes (Rev. A) PDF | HTML Jun 9, 2021
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) PDF | HTML Jun 9, 2021
Certificate TPS63811EVM EU Declaration of Conformity (DoC) Apr 17, 2020
Application brief Improve Efficiency in TWS Earbuds with Buck-Boost Converter Sep 18, 2019
Application note Using Non-Inverting Buck-Boost Converter for Voltage Stabilization Aug 1, 2019
Application brief Buck-boost Converter Battery Life Time Estimation for Wireless Network Cameras (Rev. A) May 28, 2019
Application brief Buck-Boost Converters Solving Power Challenges in Optical Modules May 13, 2019
Application brief Precise Delayed Start-up with Precise Threshold Enable-pin Apr 15, 2019
Application brief Prevent Battery Overdischarge with Precise Threshold Enable Pin Apr 2, 2019
Application brief Supercapacitor backup power supply with TPS63802 Jan 21, 2019
Application note Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) Jul 9, 2018

Design & development

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

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
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
GUI for evaluation module (EVM)

SLVC782 — TPS6381xEVM GUI Windows

Supported products & hardware
GUI for evaluation module (EVM)

SLVC783 — TPS6381xEVM GUI Linux

Supported products & hardware
GUI for evaluation module (EVM)

SLVC784 — TPS6381xEVM GUI Mac

Supported products & hardware
Calculation tool

SLVC808 — Battery Lifetime Estimator

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
DSBGA (YFF) 15 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos