Inicio Administración de potencia Reguladores conmutados CC/CC Convertidores de CC/CC

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

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 Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 100
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 Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 100
VQFN-HR (RQY) 9 3.75 mm² (2.5 mm × 1.5 mm)
  • 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.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Pin por pin con la misma funcionalidad que el dispositivo comparado
TPS62869 ACTIVO Convertidor reductor síncrono de 5.5 V y 4 A con interfaz I2C en encapsulado QFN de 1.5 mm × 2.5 mm Higher output current alternative.
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.
TPSM82864A ACTIVO Módulo de alimentación reductor fino de 4 A y entrada de 2.4 V a 5.5 V con inductor integrado en QFN DC/DC module alternative in overmolded QFN.

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 7
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 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 12/07/2021
Application brief Suggested DC/DC Converters and PMIC for Powering DDR5, LPDDR5, and LPDDR5X Memory PDF | HTML 17/02/2026
Nota sobre la aplicación Closed Loop Constant Power Drive to Simplify Heater Element Control and Extend Battery Life PDF | HTML 29/01/2025
Nota sobre la aplicación Benefiting from Step-Down Converters with an I2C Communication Interface (Rev. B) PDF | HTML 29/11/2023
Nota sobre la aplicación Intro to Multi-Function Pins and Their Applications in TI Step-Down Converters (Rev. A) PDF | HTML 17/11/2022
Nota sobre la aplicación Understanding SOA Curves to Operate at High Output Currents and Temperature PDF | HTML 5/05/2022
Informe Enabling Higher Data Rates for Optical Modules With Small and Efficient Power PDF | HTML 22/03/2021

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 (...)
Guía del usuario: PDF | HTML
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Modelo de simulación

TPS62868 PSpice Transient Model (for TPS6286800C)

SLUM936.ZIP (327 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

TPS62868 PSpice Transient Model (for TPS628680A)

SLUM933.ZIP (303 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

TPS62868 PSpice Transient Model (for TPS6286810C)

SLUM937.ZIP (326 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

TPS62868 PSpice Transient Model (for TPS628681A)

SLUM934.ZIP (300 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

TPS62868 PSpice Transient Model (for TPS6286820C)

SLUM938.ZIP (326 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

TPS62868 PSpice Transient Model (for TPS628682A)

SLUM935.ZIP (302 KB) - Modelo PSpice
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN-HR (RQY) 9 Ultra Librarian

Pedidos y calidad

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos