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LM3488Q-Q1

ACTIVO

Controlador de canal N de lado bajo con entrada de tensión amplia de 40 V para reguladores de conmut

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Funcionalidad similar a la del dispositivo comparado
LM5155-Q1 ACTIVO Controlador elevador no síncrono MOSFET de 1.5 A y VIN amplia de 2.2 MHz con certificación AEC-Q100 For applications requiring lower quiescent current or higher efficiency.

Detalles del producto

Rating Automotive Topology Boost, Flyback, Forward, SEPIC Vin (max) (V) 40 Vin (min) (V) 2.97 Vout (max) (V) 500 Vout (min) (V) 1.26 Features Adjustable current limit, Enable, Frequency synchronization, Light-load efficiency, Nonsynchronous rectification, Prebias startup Duty cycle (max) (%) 100 Iq (typ) (A) 0.0027 Operating temperature range (°C) -40 to 125
Rating Automotive Topology Boost, Flyback, Forward, SEPIC Vin (max) (V) 40 Vin (min) (V) 2.97 Vout (max) (V) 500 Vout (min) (V) 1.26 Features Adjustable current limit, Enable, Frequency synchronization, Light-load efficiency, Nonsynchronous rectification, Prebias startup Duty cycle (max) (%) 100 Iq (typ) (A) 0.0027 Operating temperature range (°C) -40 to 125
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Automotive grade product, AEC-Q100 qualified
  • 8-lead VSSOP package
  • Internal push-pull driver with 1A peak current capability
  • Current limit and thermal shutdown
  • Frequency compensation optimized with a capacitor and a resistor
  • Internal soft start
  • Current mode operation
  • Undervoltage lockout with hysteresis
  • Key specifications:
    • Wide supply voltage range of 2.97V to 40V
    • 100kHz to 1MHz adjustable and synchronizable clock frequency
    • ±1.5% (overtemperature) internal reference
    • 5µA shutdown current (overtemperature)
  • Create a custom design using the LM3488Q-Q1 with the WEBENCH® Power Designer
  • Automotive grade product, AEC-Q100 qualified
  • 8-lead VSSOP package
  • Internal push-pull driver with 1A peak current capability
  • Current limit and thermal shutdown
  • Frequency compensation optimized with a capacitor and a resistor
  • Internal soft start
  • Current mode operation
  • Undervoltage lockout with hysteresis
  • Key specifications:
    • Wide supply voltage range of 2.97V to 40V
    • 100kHz to 1MHz adjustable and synchronizable clock frequency
    • ±1.5% (overtemperature) internal reference
    • 5µA shutdown current (overtemperature)
  • Create a custom design using the LM3488Q-Q1 with the WEBENCH® Power Designer

The LM3488Q-Q1 is a versatile low-side N-FET high-performance controller for switching regulators. This device is designed for use in topologies requiring low-side FET, such as boost, flyback, or SEPIC. Moreover, the LM3488Q-Q1 can be operated at extremely high switching frequency to reduce the overall design size. The switching frequency of LM3488Q-Q1 can be adjusted to any value from 100kHz to 1MHz by using a single external resistor or by synchronizing the device to an external clock. Current mode control provides excellent bandwidth and transient response, besides cycle-by-cycle current limiting. Output current can be programmed with a single external resistor.

The LM3488Q-Q1 has built-in features such as thermal shutdown, short-circuit protection, and overvoltage protection. Power-saving shutdown mode reduces the total supply current to 5µA and allows power supply sequencing. Internal soft-start limits the inrush current at start-up.

The LM3488Q-Q1 is a versatile low-side N-FET high-performance controller for switching regulators. This device is designed for use in topologies requiring low-side FET, such as boost, flyback, or SEPIC. Moreover, the LM3488Q-Q1 can be operated at extremely high switching frequency to reduce the overall design size. The switching frequency of LM3488Q-Q1 can be adjusted to any value from 100kHz to 1MHz by using a single external resistor or by synchronizing the device to an external clock. Current mode control provides excellent bandwidth and transient response, besides cycle-by-cycle current limiting. Output current can be programmed with a single external resistor.

The LM3488Q-Q1 has built-in features such as thermal shutdown, short-circuit protection, and overvoltage protection. Power-saving shutdown mode reduces the total supply current to 5µA and allows power supply sequencing. Internal soft-start limits the inrush current at start-up.

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM3488Q-Q1 High-Efficiency Controller for Boost, SEPIC and Fly-Back DC-DC Converters datasheet (Rev. A) PDF | HTML 11/03/2026

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.

Herramienta de cálculo

FLYBUCK-FLYBACK-DESIGN-CALC — Flybuck / Flyback Calculator

Esta herramienta ayuda a un ingeniero de fuentes de alimentación a seleccionar la topología CC-CC aislada adecuada en función de las especificaciones. Según la topología elegida, la calculadora también recomienda el CI adecuado para el diseño.

Productos y hardware compatibles
Herramienta de cálculo

LM3478-88-BOOST-CALC — LM3478-88 quick start calculator for boost

LM3478-88 quick start calculator for boost topology
Productos y hardware compatibles
Herramienta de cálculo

LM3478-88-FLYBACK-CALC — LM3478-88 quick start calculator for Flyback

The LM3478-88 Flyback quick start calculator tool assists in the configuration of the power stage and the external components for the LM3478 and LM3488 devices
Productos y hardware compatibles
Herramienta de cálculo

LM3478-88-SEPIC-CALC — LM3478-88 quick start calculator for SEPIC

The LM3478-88 SEPIC quick start calculator tool assists in the configuration of the power stage and the external components for the LM3478 and LM3488.
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VSSOP (DGK) 8 Ultra Librarian

Pedidos y calidad

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