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TPS62864

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4-A Synchronous Step-Down Converter with I2C Interface in 1.05-mm x 1.78-mm WCSP package

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Product details

Parameters

Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Vout (Min) (V) 0.4 Vout (Max) (V) 1.675 Iout (Max) (A) 4 Iq (Typ) (mA) 0.005 Iq (Typ) (uA) 5 Features Enable, Forced PWM, I2C/PMBus, Light Load Efficiency, Output Discharge, Over Current Protection, Soft Start Fixed, Synchronous Rectification, UVLO Fixed, VID Interface Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

DSBGA (YCG) 15 DSBGA (YCG) 15 2 mm² 1.78 x 1.05 open-in-new Find other Buck converters (integrated switch)

Features

  • 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

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Description

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
* Datasheet 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) Oct. 01, 2020
Selection guides Buck Converter Quick Reference Guide (Rev. A) Mar. 31, 2020
White papers Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies Oct. 14, 2019
Application notes Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description
The TPS62866EVM-051 facilitates the evaluation of the TPS62866 6-A, step-down converter in a small 1.05-mm by 1.78-mm package with 0.5-mm pitch. The evaluation module (EVM) has a programmable output of 0.4-V to 1.675-V via I2C with 1% accuracy from input voltages betwen 2.4-V to 5.5-V. The TPS62866 (...)
Features
  • 2.4-V to 5.5-V input voltage range
  • 0.4-V to 1.675-V programmable output voltage via I2C
  • 6-A output current
  • 39.2 mm2 total solution area
GUIS FOR EVALUATION MODULES (EVM) Download
SLUC676B.ZIP (26590 KB)
GUIS FOR EVALUATION MODULES (EVM) Download
SLUC677B.ZIP (27498 KB)
GUIS FOR EVALUATION MODULES (EVM) Download
SLUC678B.ZIP (22329 KB)

Design tools & simulation

SIMULATION MODELS Download
SLUM686A.ZIP (115 KB) - PSpice Model
SIMULATION MODELS Download
SLUM687A.ZIP (115 KB) - PSpice Model
SIMULATION MODELS Download
SLUM742.ZIP (279 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
Small, efficient power supply reference design for M.2 form factor SSD
TIDA-050044 — This small and efficient power supply reference design demonstrates a power solution for M.2 Form Factor client Solid State Drives. This solution uses 3 DC/DC converters and a 1 Linear Converter. Furthermore, one of the outputs offers the flexibility to change the output voltage through I²C (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
DSBGA (YCG) 15 View options

Ordering & quality

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