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

TPS65279

ACTIVO

Convertidor reductor síncrono doble de 5 A y entrada de 4.5 V a 18 V

Haga su pedido ahora
Hoja de datos

TPS65279

ACTIVO
Hoja de datos Haga su pedido ahora

Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 5 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 15 Vout (min) (V) 0.6 Features Enable, Light-load efficiency, Phase Interleaving, Soft-start adjustable Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.01 Duty cycle (max) (%) 95
Rating Catalog Topology Buck Iout (max) (A) 5 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 15 Vout (min) (V) 0.6 Features Enable, Light-load efficiency, Phase Interleaving, Soft-start adjustable Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.01 Duty cycle (max) (%) 95
VQFN (RHH) 36 36 mm² (6 mm × 6 mm) HTSSOP (DAP) 32 89.1 mm² (11 mm × 8.1 mm)
  • 4.5-V to 18-V Wide Input Voltage Range
  • Programmable Slew Rate Control for Output
    Voltage Transition
  • Up to 5-A Maximum Continuous Output Current in
    Buck 1 and Buck 2
  • Buck 1 and Buck 2 can be Paralleled to Deliver up
    to 10-A Current
  • Pulse Skipping Mode to Achieve High Efficiency in
    Light Load
  • Adjustable Switching Frequency
    200 kHz to 1.6 MHz Set by External Resistor
  • Dedicated Enable and Soft-Start for Each Buck
  • Peak Current-Mode Control With Simple
    Compensation Circuit
  • Cycle-by-Cycle Overcurrent Protection
  • 180° Out-of-Phase Operation to Reduce Input
    Capacitance and Power Supply Induced Noise
  • Over Temperature Protection
  • Available in 32-Pin Thermally Enhanced HTSSOP
    (DAP) and 36-Pin VQFN 6-mm × 6-mm (RHH)
    Packages
  • 4.5-V to 18-V Wide Input Voltage Range
  • Programmable Slew Rate Control for Output
    Voltage Transition
  • Up to 5-A Maximum Continuous Output Current in
    Buck 1 and Buck 2
  • Buck 1 and Buck 2 can be Paralleled to Deliver up
    to 10-A Current
  • Pulse Skipping Mode to Achieve High Efficiency in
    Light Load
  • Adjustable Switching Frequency
    200 kHz to 1.6 MHz Set by External Resistor
  • Dedicated Enable and Soft-Start for Each Buck
  • Peak Current-Mode Control With Simple
    Compensation Circuit
  • Cycle-by-Cycle Overcurrent Protection
  • 180° Out-of-Phase Operation to Reduce Input
    Capacitance and Power Supply Induced Noise
  • Over Temperature Protection
  • Available in 32-Pin Thermally Enhanced HTSSOP
    (DAP) and 36-Pin VQFN 6-mm × 6-mm (RHH)
    Packages

TPS65279 is a monolithic dual synchronous buck converter with wide 4.5-V to 18-V operating input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12- or 15-V power bus or battery. The converter with constant frequency peak current mode control is designed to simplify its application while giving the designers options to optimize their usage according to the target applications.

Two bucks in TPS65279 can be paralleled to delivery up to 10-A load current by using current sharing mode, connect ISHARE pin high. Two phase operation in current sharing reduces system filtering capacitance and inductance, alleviates EMI and improves output voltage ripple and noise.

TPS65279 features a dedicated enable pin. An independent soft-start pin provides flexibility in power up programmability. Constant frequency peak current mode control simplifies the compensation and provides fast transient response. Cycle-by-cycle overcurrent protection and hiccup mode operation limit MOSFET power dissipation in short circuit or over loading fault conditions.

Low-side reverse overcurrent protection also prevents excessive sinking current from damaging the converter. TPS65279 also features a light load pulse skipping mode (PSM) controlled by MODE pin configuration.

The TPS65279 is available in a 32-pin thermally-enhanced HTSSOP (DAP) package and 36-pin 6-mm × 6-mm VQFN (RHH) package.

TPS65279 is a monolithic dual synchronous buck converter with wide 4.5-V to 18-V operating input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12- or 15-V power bus or battery. The converter with constant frequency peak current mode control is designed to simplify its application while giving the designers options to optimize their usage according to the target applications.

Two bucks in TPS65279 can be paralleled to delivery up to 10-A load current by using current sharing mode, connect ISHARE pin high. Two phase operation in current sharing reduces system filtering capacitance and inductance, alleviates EMI and improves output voltage ripple and noise.

TPS65279 features a dedicated enable pin. An independent soft-start pin provides flexibility in power up programmability. Constant frequency peak current mode control simplifies the compensation and provides fast transient response. Cycle-by-cycle overcurrent protection and hiccup mode operation limit MOSFET power dissipation in short circuit or over loading fault conditions.

Low-side reverse overcurrent protection also prevents excessive sinking current from damaging the converter. TPS65279 also features a light load pulse skipping mode (PSM) controlled by MODE pin configuration.

The TPS65279 is available in a 32-pin thermally-enhanced HTSSOP (DAP) package and 36-pin 6-mm × 6-mm VQFN (RHH) package.
filter Buscar otro/a Convertidores de CC/CC
Descargar Ver vídeo con transcripción Video

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 4
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS65279 4.5- to 18-V Input, 5-A/5-A Dual Synchronous Step-Down Converter With Current Sharing datasheet (Rev. C) PDF | HTML 14/05/2015
Nota sobre la aplicación Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) PDF | HTML 1/04/2019
Guía del usuario 4.5V TO 18V Input, 6A/3.5A Dual Synchronous Step-Down Converter, TPS65279RHHR 21/08/2013
Guía del usuario 4.5V TO 18V Input, 5A/5A Dual Synchronous Step-Down Converter, TPS65279DAPR 21/08/2013

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

TPS65279EVM — Módulo de evaluación TPS65279EVM

The Texas Instruments TPS65279EVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65279 Step-Down Converter. The TPS65279 is a monolithic dual synchronous buck converter with a wide 4.5V to 18V operating input voltage range that encompasses most intermediate (...)

Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Modelo de simulación

TPS65279V Unencrypted PSpice Average Model Package (Rev. A)

SLVMA03A.ZIP (52 KB) - Modelo PSpice
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RHH) 36 Ultra Librarian
HTSSOP (DAP) 32 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

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

Ver todos los temas del foro en inglés

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