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TPS62866

ACTIVE

5.5-V, 6-A synchronous step-down converter with I2C interface in 1.05-mm × 1.78-mm WCSP package

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Data sheet

TPS62866

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (min) (V) 0.4 Vout (max) (V) 1.675 Iout (max) (A) 6 Iq (typ) (mA) 0.005 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 Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode DCS-Control Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (min) (V) 0.4 Vout (max) (V) 1.675 Iout (max) (A) 6 Iq (typ) (mA) 0.005 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 Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode DCS-Control Duty cycle (max) (%) 100 Type Converter
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 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
Application note Benefiting from Step-Down Converters with an I²C Communication Interface (Rev. A) PDF | HTML 04 May 2022
EVM User's guide TPS62866EVM-051 Evaluation Module (Rev. A) PDF | HTML 08 Jul 2021
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
Application note Thermal Performance Optimization of High Power Density Buck Converters PDF | HTML 23 Feb 2021
Certificate TPS62866EVM-118 EU Declaration of Conformity (DoC) 15 Jun 2020
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 packages 17 Jul 2019
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 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)

TPS62866EVM GUI for Windows (Rev. B)

SLUC676B.ZIP (26590 KB)
Download
GUI for evaluation module (EVM)

TPS62866EVM GUI for MacOS (Rev. B)

SLUC677B.ZIP (27498 KB)
Download
GUI for evaluation module (EVM)

TPS62866EVM GUI for Linux (Rev. B)

SLUC678B.ZIP (22329 KB)
Download
Simulation model

TPS62864 PSpice Unencrypted Transient Model (Rev. B)

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

TPS628660B PSpice Unencrypted Transient Model

SLUM741.ZIP (316 KB) - PSpice Model
Download
Simulation model

TPS6286612 PSpice Transient Model

SLUM735.ZIP (107 KB) - PSpice Model
Download
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 (YCG) 15 View options
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