Inicio Administración de potencia Convertidores de CA/CC y CC/CC (FET integrado)
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Administración de potencia
Convertidores de CA/CC y CC/CC (FET integrado)

TPS62868

ACTIVO

Convertidor reductor síncrono de 5.5 V y 4 A con interfaz I2C en encapsulado QFN de 1.5 mm × 2.5 mm

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TPS62868

ACTIVO
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Detalles del producto

Rating Catalog Topology Buck, Step-Down Converter, Synchronous Buck Iout (max) (A) 4 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 3.35 Vout (min) (V) 0.2 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 EMI features Low parasitic Hotrod packaging Control mode COT, Constant on-time (COT), DCS-Control Switching frequency (min) (kHz) 2400 Switching frequency (max) (kHz) 2400 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 4 Duty cycle (max) (%) 100 Type Converter, Converter (Integrated Switch), DC/DC converter
Rating Catalog Topology Buck, Step-Down Converter, Synchronous Buck Iout (max) (A) 4 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 3.35 Vout (min) (V) 0.2 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 EMI features Low parasitic Hotrod packaging Control mode COT, Constant on-time (COT), DCS-Control Switching frequency (min) (kHz) 2400 Switching frequency (max) (kHz) 2400 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 4 Duty cycle (max) (%) 100 Type Converter, Converter (Integrated Switch), DC/DC converter
VQFN-HR (RQY) 9 3.75 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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Funcionalidad similar a la del dispositivo comparado
TPS62864 ACTIVO Convertidor reductor síncrono de 4 A con interfaz I2C en WCSP de 1.05 mm × 1.78 mm Smaller 4-A converter in CSP package.
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Documentación técnica

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* 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) PDF | HTML 12 jul 2021
Application note Closed Loop Constant Power Drive to Simplify Heater Element Control and Extend Battery Life PDF | HTML 29 ene 2025
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
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 mar 2021

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS62869EVM-118 — Módulo de evaluación de convertidor reductor de alta densidad de potencia de 6 A con interfaz I2C

El módulo de evaluación (EVM) TPS62869EVM-x (BSR118) facilita la evaluación de la familia de convertidores reductores de 6 A con DCS-Control TPS62869 en una solución de encapsulado QFN pequeño de 1.5 mm por 2.5 mm. El EVM crea tensiones de salida entre 0.4 V y 1.675 V con tensiones de salida de (...)
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN-HR (RQY) 9 Ultra Librarian
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Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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