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TPS6286A08

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2.4V-to-5.5V input, 8A high-frequency step-down converter

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Data sheet

TPS6286A08

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) 11 Features Adjustable soft start, Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-bias startup, Soft Start Adjustable, Synchronous Rectification, Thermal shutdown 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) 11 Features Adjustable soft start, Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-bias startup, Soft Start Adjustable, Synchronous Rectification, Thermal shutdown 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.
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* 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

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Evaluation board

TPS6286A10EVM-050 — TPS6286A10 evaluation module

The TPS6286AxxEVM-050 is designed to help the user easily evaluate and test the operation and functionality of the TPS6286A06 and TPS6286A10 buck converters. The evaluation module converts 2.4V to 5.5V input voltage to a regulated 1.2V output voltage. The output current can go up to 6A for the (...)
User guide: PDF | HTML
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Simulation model

TPS6286A08 PSpice Transient Model

SLUM965.ZIP (1144 KB) - PSpice Model
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Simulation model

TPS6286A08 SIMPLIS Model (Rev. A)

SLUM959A.ZIP (5334 KB) - SIMPLIS Model
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VQFN-HR (VBM) 13 Ultra Librarian
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