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AC/DC & DC/DC converters (integrated FET)

TPS62864

ACTIVE

4-A synchronous step-down converter with I2C interface in 1.05-mm x 1.78-mm WCSP package

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Data sheet

TPS62864

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 2.5 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2160 Switching frequency (max) (kHz) 2640 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, I2C/PMBus, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO fixed, VID Interface Control mode DCS-Control Vout (min) (V) 0.4 Vout (max) (V) 1.675 Iq (typ) (µA) 5 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 2.5 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2160 Switching frequency (max) (kHz) 2640 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, I2C/PMBus, Light load efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO fixed, VID Interface Control mode DCS-Control Vout (min) (V) 0.4 Vout (max) (V) 1.675 Iq (typ) (µA) 5 Duty cycle (max) (%) 100
DSBGA (YCG) 15 1.8375 mm² 1.75 x 1.05
  • 7-mΩ and 6.5-mΩ internal power MOSFETs
  • >90% efficiency (0.9-V output)
  • DCS-control topology for fast transient response
  • 1% output voltage accuracy
  • 4-µA operating quiescent current
  • 2.4-V to 5.5-V input voltage range
  • 2.4-MHz switching frequency
  • Selection by external resistor
    • Start-up output voltage
    • I2C slave address
  • Selection by I2C interface
    • Power save mode or forced PWM mode
    • Output discharge
    • Hiccup or latching short-circuit protection
    • Output voltage ramp speed
  • VID pin for dynamic voltage scaling (DVS)
  • Thermal pre-warning and thermal shutdown
  • Power good indicator pin option
  • I2C-compatible interface up to 3.4 Mbps
  • Available in 1.05-mm x 1.78-mm x 0.5-mm 15-pin WCSP package with 0.35-mm pitch
  • Create a custom design using the TPS62866 with the WEBENCH® Power Designer
  • 7-mΩ and 6.5-mΩ internal power MOSFETs
  • >90% efficiency (0.9-V output)
  • DCS-control topology for fast transient response
  • 1% output voltage accuracy
  • 4-µA operating quiescent current
  • 2.4-V to 5.5-V input voltage range
  • 2.4-MHz switching frequency
  • Selection by external resistor
    • Start-up output voltage
    • I2C slave address
  • Selection by I2C interface
    • Power save mode or forced PWM mode
    • Output discharge
    • Hiccup or latching short-circuit protection
    • Output voltage ramp speed
  • VID pin for dynamic voltage scaling (DVS)
  • Thermal pre-warning and thermal shutdown
  • Power good indicator pin option
  • I2C-compatible interface up to 3.4 Mbps
  • Available in 1.05-mm x 1.78-mm x 0.5-mm 15-pin WCSP package with 0.35-mm pitch
  • Create a custom design using the TPS62866 with the WEBENCH® Power Designer

The TPS62864 and TPS62866 devices are high-frequency synchronous step-down converters with I2C interface which provide an efficient, adaptive, and high power-density solution. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current range. The device can also be forced in PWM mode operation for smallest output voltage ripple. Together with its DCS-control architecture, excellent load transient performance and tight output voltage accuracy are achieved. Via the I2C interface and a dedicated VID pin, the output voltage is quickly adjusted to adapt the power consumption of the load to the ever-changing performance needs of the application.

The TPS62864 and TPS62866 devices are high-frequency synchronous step-down converters with I2C interface which provide an efficient, adaptive, and high power-density solution. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current range. The device can also be forced in PWM mode operation for smallest output voltage ripple. Together with its DCS-control architecture, excellent load transient performance and tight output voltage accuracy are achieved. Via the I2C interface and a dedicated VID pin, the output voltage is quickly adjusted to adapt the power consumption of the load to the ever-changing performance needs of the application.
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Technical documentation

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Type Title Date
* Data sheet TPS62864/6 2.4-V to 5.5-V Input, 4-A and 6-A Synchronous Step-Down Converter with I2C Interface in WCSP Package datasheet (Rev. C) PDF | HTML 01 Oct 2020
Application note Benefiting from Step-Down Converters with an I2C Communication Interface (Rev. B) PDF | HTML 29 Nov 2023
Application note Intro to Multi-Function Pins and Their Applications in TI Step-Down Converters (Rev. A) PDF | HTML 17 Nov 2022
Application note Understanding SOA Curves to Operate at High Output Currents and Temperature PDF | HTML 05 May 2022
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 Mar 2021
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 14 Oct 2019
Technical article Layout matters: solving pinout assignment issues for DC/DC converters in WCSP pack PDF | HTML 17 Jul 2019
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019

Design & development

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

Evaluation board

TPS62866EVM-051 — High power density 6-A step-down converter evaluation module with I2C interface

The TPS62866EVM-051 evaluation module (EVM) facilitates the evaluation of the TPS62866 6-A, step-down converter in a small 1.05-mm by 1.78-mm WCSP package with 0.5-mm pitch. The EVM has a programmable output of 0.4 V to 1.675 V via I2C with 1% accuracy from input voltages between 2.4 V to 5.5 V. (...)

User guide: PDF | HTML
Not available on TI.com
GUI for evaluation module (EVM)

SLUC676 — TPS62866EVM GUI for Windows

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS62864 — 4-A synchronous step-down converter with I2C interface in 1.05-mm x 1.78-mm WCSP package TPS62866 — 5.5-V, 6-A synchronous step-down converter with I2C interface in 1.05-mm × 1.78-mm WCSP package
Download
GUI for evaluation module (EVM)

SLUC677 — TPS62866EVM GUI for MacOS

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS62864 — 4-A synchronous step-down converter with I2C interface in 1.05-mm x 1.78-mm WCSP package TPS62866 — 5.5-V, 6-A synchronous step-down converter with I2C interface in 1.05-mm × 1.78-mm WCSP package
Download
GUI for evaluation module (EVM)

SLUC678 — TPS62866EVM GUI for Linux

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS62864 — 4-A synchronous step-down converter with I2C interface in 1.05-mm x 1.78-mm WCSP package TPS62866 — 5.5-V, 6-A synchronous step-down converter with I2C interface in 1.05-mm × 1.78-mm WCSP package
Download
Simulation model

TPS62864 PSpice Unencrypted Transient Model (Rev. B)

SLUM687B.ZIP (95 KB) - PSpice Model
Download
Simulation model

TPS628640B PSpice Unencrypted Transient Model

SLUM742.ZIP (279 KB) - PSpice Model
Download
Simulation model

TPS62866 PSpice Unencrypted Transient Model (Rev. B)

SLUM686B.ZIP (101 KB) - PSpice Model
Download
Reference designs

TIDA-050044 — Small, efficient power supply reference design for M.2 form factor SSD

This small and efficient power supply reference design is for M.2 form factor client solid state drives (SSD). This design uses three DC/DC converters and a single linear converter. Furthermore, one of the outputs offers the flexibility to change the output voltage through I²C communication. 
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
DSBGA (YCG) 15 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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