Inicio Gestión de la energía Controladores CA/CC y CC/CC (FET externo)
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Gestión de la energía
Controladores CA/CC y CC/CC (FET externo)

TPS5103

ACTIVO

Controlador reductor síncrono de 4.5 V a 25 V con tres modos de funcionamiento

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Funcionalidad similar a la del dispositivo comparado
TPS51397A ACTIVO Regulador reductor síncrono de 10 A y entrada de 4.5 V a 24 V Offers a lower IQ with light-load efficiency and an extended positive operating temperature in a smaller package.

TPS5103

ACTIVO
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Detalles del producto

Vin (min) (V) 4.5 Vin (max) (V) 25 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode Voltage mode Topology Buck Rating Catalog Vout (min) (V) 1.2 Vout (max) (V) 24 Features Enable, Frequency synchronization, Light Load Efficiency, Synchronous Rectification Iq (typ) (µA) 500 Duty cycle (max) (%) 100 Number of phases 1
Vin (min) (V) 4.5 Vin (max) (V) 25 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode Voltage mode Topology Buck Rating Catalog Vout (min) (V) 1.2 Vout (max) (V) 24 Features Enable, Frequency synchronization, Light Load Efficiency, Synchronous Rectification Iq (typ) (µA) 500 Duty cycle (max) (%) 100 Number of phases 1
SSOP (DB) 20 56.16 mm² 7.2 x 7.8
  • Step-Down DC-DC Converter
  • Three Operation-Modes
    • Heavy Load:
      • Fixed Frequency PWM
      • Hysteretic (User Selectable)
    • Light Load:
      • Skip Mode
  • 4.5-V to 25-V Input Voltage Range
  • Adjustable Output Voltage Down to 1.2 V
  • 95% Efficiency
  • Standby Control
  • Overcurrent Protection
  • UVLO for Internal 5-V Regulation
  • Low-Standby Current . . . 0.5 mA Typical
  • TA = -40°C to 85°C
  • Step-Down DC-DC Converter
  • Three Operation-Modes
    • Heavy Load:
      • Fixed Frequency PWM
      • Hysteretic (User Selectable)
    • Light Load:
      • Skip Mode
  • 4.5-V to 25-V Input Voltage Range
  • Adjustable Output Voltage Down to 1.2 V
  • 95% Efficiency
  • Standby Control
  • Overcurrent Protection
  • UVLO for Internal 5-V Regulation
  • Low-Standby Current . . . 0.5 mA Typical
  • TA = -40°C to 85°C

The TPS5103 is a synchronous buck dc/dc controller, designed for notebook PC system power. The controller has three user-selectable operation modes available: hysteretic mode, fixed-frequency PWM control, or SKIP control.

In high-current applications, where fast transient response is advantageous for reducing bulk capacitance, the hysteretic mode is selected by connecting the RT pin to VREF5. Selecting the PWM/SKIP modes for less demanding transient applications is ideal for conserving notebook battery life under light load conditions. The device includes high-side and low-side MOSFET drivers capable of driving low r ds(on) N-channel MOSFETs.

The user-selectable overcurrent protection (OCP) threshold is set by an external TRIP-pin resistor in order to protect the system. The TPS5103 is configured so that a current-sense resistor is not required, improving the operating efficiency.

The TPS5103 is a synchronous buck dc/dc controller, designed for notebook PC system power. The controller has three user-selectable operation modes available: hysteretic mode, fixed-frequency PWM control, or SKIP control.

In high-current applications, where fast transient response is advantageous for reducing bulk capacitance, the hysteretic mode is selected by connecting the RT pin to VREF5. Selecting the PWM/SKIP modes for less demanding transient applications is ideal for conserving notebook battery life under light load conditions. The device includes high-side and low-side MOSFET drivers capable of driving low r ds(on) N-channel MOSFETs.

The user-selectable overcurrent protection (OCP) threshold is set by an external TRIP-pin resistor in order to protect the system. The TPS5103 is configured so that a current-sense resistor is not required, improving the operating efficiency.
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Documentación técnica

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Tipo Título Fecha
* Data sheet Multiple Mode Synchronous DC/DC Controller datasheet (Rev. A) 16 may 2001

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

Soporte y capacitación

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