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TPS62866

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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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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) 6 Iq (Typ) (uA) 5 Switching frequency (Min) (kHz) 2160 Switching frequency (Max) (kHz) 2640 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 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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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
NEW TPS62869 PREVIEW 5.5-V 6-A synchronous step-down converter with I2C interface in 1.5-mm x 2.5-mm QFN package QFN version of TPS62866, same specification and function

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
User guide TPS62869EVM-118 Evaluation Module Sep. 18, 2020
More literature TPS62866EVM-118 EU Declaration of Conformity (DoC) Jun. 15, 2020
Selection guide Buck Converter Quick Reference Guide (Rev. A) Mar. 31, 2020
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies Oct. 14, 2019
Application note 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
User guide TPS62866EVM-051 Evaluation Module Mar. 26, 2019

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description

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. The (...)

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

Software development

GUI FOR EVALUATION MODULE (EVM) Download
SLUC676B.ZIP (26590 KB)
GUI FOR EVALUATION MODULE (EVM) Download
SLUC677B.ZIP (27498 KB)
GUI FOR EVALUATION MODULE (EVM) Download
SLUC678B.ZIP (22329 KB)

Design tools & simulation

SIMULATION MODEL Download
SLUM686B.ZIP (101 KB) - PSpice Model
SIMULATION MODEL Download
SLUM687B.ZIP (95 KB) - PSpice Model
SIMULATION MODEL Download
SLUM735.ZIP (107 KB) - PSpice Model
SIMULATION MODEL Download
SLUM741.ZIP (316 KB) - PSpice Model
SIMULATION MODEL Download
SLUM742.ZIP (279 KB) - PSpice Model
SIMULATION TOOL 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
  • (...)

CAD/CAE symbols

Package Pins Download
DSBGA (YCG) 15 View options

Ordering & quality

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  • MSL rating/Peak reflow
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  • Qualification summary
  • Ongoing reliability monitoring

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