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

TPS6286B08

ACTIVE

2.4V-to-5.5V input, 8A high-efficiency step-down converter with I²C

Order now
Data sheet

TPS6286B08

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Switch current limit (typ) (A) 9 Features Adjustable soft start, Enable, Forced PWM, I2C, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-bias startup, Synchronous Rectification, Thermal shutdown, VID Interface EMI features Low parasitic Hotrod packaging Control mode DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000005 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Switch current limit (typ) (A) 9 Features Adjustable soft start, Enable, Forced PWM, I2C, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-bias startup, Synchronous Rectification, Thermal shutdown, VID Interface EMI features Low parasitic Hotrod packaging Control mode DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000005 Duty cycle (max) (%) 100
VQFN-HR (VBM) 13 6 mm² 3 x 2
  • 2.4V to 5.5V input voltage range
  • 8mΩ and 8mΩ internal power MOSFETs
  • 5.1µA operating quiescent current
  • 1.2MHz switching frequency
  • 100% duty cycle mode
  • 0.7% output voltage accuracy
  • Forced PWM or power save mode
  • DCS-Control topology (constant on-time)
  • FB version (TPS6286Axx) output voltage:
    • Adjustable from 0.6V to Vin
    • Fixed (by external resistor) from 0.4V to 1.6V
  • I2C version (TPS6286Bxx) with selectable:
    • Output voltage from 0.4V to 1.675V with 5mV step size
    • Power save mode or forced PWM mode
    • Hiccup or latching short-circuit protection
    • Dynamic, adaptive voltage scaling ramp speed
  • Output voltage discharge
  • Hiccup short-circuit protection
  • Power-good indicator with window comparator
  • Thermal shutdown
  • Adjustable soft start
  • –40°C to 125°C operating temperature range
  • Create a custom design using the TPS6286Axx and TPS6286Bxx with the WEBENCH Power Designer
  • 2.4V to 5.5V input voltage range
  • 8mΩ and 8mΩ internal power MOSFETs
  • 5.1µA operating quiescent current
  • 1.2MHz switching frequency
  • 100% duty cycle mode
  • 0.7% output voltage accuracy
  • Forced PWM or power save mode
  • DCS-Control topology (constant on-time)
  • FB version (TPS6286Axx) output voltage:
    • Adjustable from 0.6V to Vin
    • Fixed (by external resistor) from 0.4V to 1.6V
  • I2C version (TPS6286Bxx) with selectable:
    • Output voltage from 0.4V to 1.675V with 5mV step size
    • Power save mode or forced PWM mode
    • Hiccup or latching short-circuit protection
    • Dynamic, adaptive voltage scaling ramp speed
  • Output voltage discharge
  • Hiccup short-circuit protection
  • Power-good indicator with window comparator
  • Thermal shutdown
  • Adjustable soft start
  • –40°C to 125°C operating temperature range
  • Create a custom design using the TPS6286Axx and TPS6286Bxx with the WEBENCH Power Designer

The TPS6286Axx and TPS6286Bxx devices are high-frequency, synchronous, step-down converters, which provide an efficient, flexible, and high power-density design. At medium to heavy loads, the converters operate in pulse width modulation (PWM) mode and automatically enter power save mode operation at light load to maintain high efficiency over the entire load current range. The devices can also be forced in PWM mode operation to minimize output voltage ripple. Together with the DCS-Control architecture, excellent load transient performance and tight output voltage accuracy is achieved. The devices feature a Power-Good signal and an adjustable soft-start feature. The devices are able to operate in 100% mode. For fault protection, the devices incorporate a HICCUP short-circuit protection as well as a thermal shutdown.

The TPS6286Axx and TPS6286Bxx devices are high-frequency, synchronous, step-down converters, which provide an efficient, flexible, and high power-density design. At medium to heavy loads, the converters operate in pulse width modulation (PWM) mode and automatically enter power save mode operation at light load to maintain high efficiency over the entire load current range. The devices can also be forced in PWM mode operation to minimize output voltage ripple. Together with the DCS-Control architecture, excellent load transient performance and tight output voltage accuracy is achieved. The devices feature a Power-Good signal and an adjustable soft-start feature. The devices are able to operate in 100% mode. For fault protection, the devices incorporate a HICCUP short-circuit protection as well as a thermal shutdown.
filter Find other DC/DC converters
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet TPS6286Axx and TPS6286Bxx 2.4V to 5.5V Input, 6A, 8A, and 10A, Synchronous Step-Down Converter in 2mm × 3mm QFN Package With FB/I2 C Interface datasheet (Rev. C) PDF | HTML 06 Jun 2025
Application note Closed Loop Constant Power Drive to Simplify Heater Element Control and Extend Battery Life PDF | HTML 29 Jan 2025

Design & development

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

Evaluation board

TPS6286B10EVM-049 — TPS6286B10 evaluation module

The TPS6286B10EVM-049 is designed to help the user easily evaluate and test the operation and functionality of the TPS6286B10 buck converter. The evaluation module (EVM) can also be used to evaluate the TPS6286B08 device. The EVM converts 2.4V to 5.5V input voltage to a regulated output voltage. (...)
User guide: PDF | HTML
Not available on TI.com
GUI for evaluation module (EVM)

TPS6286BXXEVM-GUI — GUI for TPS6286Bxx EVM

Evaluation module GUI to evaluate I²C communication for TPS6286Bxx devices.
Supported products & hardware

Supported products & hardware

Products
DC/DC converters
  • TPS6286B08 — 2.4V-to-5.5V input, 8A high-efficiency step-down converter with I²C
  • TPS6286B10 — 2.4V-to-5.5V input, 10A high-efficiency step-down converter with I²C
Launch Download
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (VBM) 13 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

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