Product details

Vin (Min) (V) 2.4 Vin (Max) (V) 5.5 Vout (Min) (V) 0.4 Vout (Max) (V) 3.35 Iout (Max) (A) 4 Iq (Typ) (uA) 4 Switching frequency (Min) (kHz) 2400 Switching frequency (Max) (kHz) 2400 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
Vin (Min) (V) 2.4 Vin (Max) (V) 5.5 Vout (Min) (V) 0.4 Vout (Max) (V) 3.35 Iout (Max) (A) 4 Iq (Typ) (uA) 4 Switching frequency (Min) (kHz) 2400 Switching frequency (Max) (kHz) 2400 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
VQFN-HR (RQY) 9 4 mm² 2.5 x 1.5
  • 11-mΩ and 10.5-mΩ internal power MOSFETs
  • >90% efficiency (0.9-V output)
  • DCS-Control topology for fast transient response
  • Available output voltage ranges for dynamic voltage scaling (DVS) through I2C
    • Output voltage range from 0.2-V to 0.8375-V with 2.5-mV step size
    • Output voltage range from 0.4-V to 1.675-V with 5-mV step size
    • Output voltage range from 0.8-V to 3.35-V with 10-mV step size
  • 1% output voltage accuracy
  • 2.4-MHz switching frequency
  • Selection by external resistor
    • Start-up output voltage
    • I2C target address
  • Selection by I2C interface
    • Power save mode or forced PWM mode
    • Output discharge
    • Hiccup or latching short-circuit protection
    • Output voltage ramp speed
  • Thermal pre-warning and thermal shutdown
  • Power good indicator pin option with window comparator
  • I2C-compatible interface up to 3.4 Mbps
  • Available in 1.5-mm x 2.5-mm x 1.0-mm 9-pin QFN package with 0.5-mm pitch
  • Also available in WCSP package: TPS62866, 6-A synchronous step-down converter with I2C interface in 1.05-mm x 1.78-mm WCSP package
  • Create a custom design using with TPS62868/9 with the WEBENCH Power Designer
  • 11-mΩ and 10.5-mΩ internal power MOSFETs
  • >90% efficiency (0.9-V output)
  • DCS-Control topology for fast transient response
  • Available output voltage ranges for dynamic voltage scaling (DVS) through I2C
    • Output voltage range from 0.2-V to 0.8375-V with 2.5-mV step size
    • Output voltage range from 0.4-V to 1.675-V with 5-mV step size
    • Output voltage range from 0.8-V to 3.35-V with 10-mV step size
  • 1% output voltage accuracy
  • 2.4-MHz switching frequency
  • Selection by external resistor
    • Start-up output voltage
    • I2C target address
  • Selection by I2C interface
    • Power save mode or forced PWM mode
    • Output discharge
    • Hiccup or latching short-circuit protection
    • Output voltage ramp speed
  • Thermal pre-warning and thermal shutdown
  • Power good indicator pin option with window comparator
  • I2C-compatible interface up to 3.4 Mbps
  • Available in 1.5-mm x 2.5-mm x 1.0-mm 9-pin QFN package with 0.5-mm pitch
  • Also available in WCSP package: TPS62866, 6-A synchronous step-down converter with I2C interface in 1.05-mm x 1.78-mm WCSP package
  • Create a custom design using with TPS62868/9 with the WEBENCH Power Designer

The TPS62868 and TPS62869 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. Through 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 TPS62868 and TPS62869 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. Through 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 TPS62868x 2.4-V to 5.5-V Input, 4-A/6-A Synchronous Step-Down Converter with I2C Interface in QFN Package datasheet (Rev. B) 12 Jul 2021
Application note Intro to Multi-function Pins and their Applications in TI Step-down Converters 27 Jul 2021
Application note Benefiting from Step-Down Converters with an I²C Communication Interface 17 May 2021
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 Mar 2021
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

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Evaluation board

TPS62869EVM-118 — High power density 6-A step-down converter evaluation module with I2C interface

The TPS62869EVM-x (BSR118) evaluation module (EVM) facilitates the evaluation of the TPS62869 family of 6-A, step-down converter with DCS-Control in a small 1.5-mm by 2.5-mm QFN package solution. The EVM creates output voltages between 0.4 V and 1.675 V with 1% accuracy output voltages from higher (...)
Simulation model

TPS628682A PSpice Unencrypted Transient Model Package

SLVMDK2.ZIP (280 KB) - PSpice Model
Simulation model

TPS628680A PSpice Unencrypted Transient Model Package

SLVMDK3.ZIP (280 KB) - PSpice Model
Simulation model

TPS628681A PSpice Unencrypted Transient Model Package

SLVMDK4.ZIP (278 KB) - PSpice Model
Simulation model

TPS6286820C PSpice Unencrypted Transient Model

SLVMDM8.ZIP (303 KB) - PSpice Model
Simulation model

TPS6286810C PSpice Unencrypted Transient Model

SLVMDM9.ZIP (304 KB) - PSpice Model
Simulation model

TPS6286800C PSpice Unencrypted Transient Model

SLVMDN0.ZIP (304 KB) - PSpice Model
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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