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LMR54406

ACTIVO

Convertidor de potencia SIMPLE SWITCHER® con entrada de 4 V a 36 V, 0.6 A, síncrono reductor e IQ de

Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 4 Vin (max) (V) 36 Switching frequency (min) (kHz) 935 Switching frequency (max) (kHz) 1265 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 1 Vout (max) (V) 28 Iq (typ) (µA) 80 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 4 Vin (max) (V) 36 Switching frequency (min) (kHz) 935 Switching frequency (max) (kHz) 1265 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 1 Vout (max) (V) 28 Iq (typ) (µA) 80 Duty cycle (max) (%) 98
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Functional Safety-Capable
  • Configured for rugged industrial applications
    • 4V to 36V input voltage range
    • Withstands up to 50V short VIN transient
    • 0.6A/1A continuous output current
    • 60ns minimum switching on time
    • 1.1MHz fixed switching frequency
    • –40°C to 150°C junction temperature range
    • 98% maximum duty cycle
    • Monotonic start-up with prebiased output
    • Short-circuit protection with hiccup mode
    • Precision enable
    • ±1% tolerance voltage reference
  • Small design size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23 package
  • Pin-to-pin compatible with the LMR14010A, LMR50410, and TPS560430
  • Various options in pin-to-pin compatible package
    • PFM and forced PWM (FPWM) options
  • Functional Safety-Capable
  • Configured for rugged industrial applications
    • 4V to 36V input voltage range
    • Withstands up to 50V short VIN transient
    • 0.6A/1A continuous output current
    • 60ns minimum switching on time
    • 1.1MHz fixed switching frequency
    • –40°C to 150°C junction temperature range
    • 98% maximum duty cycle
    • Monotonic start-up with prebiased output
    • Short-circuit protection with hiccup mode
    • Precision enable
    • ±1% tolerance voltage reference
  • Small design size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23 package
  • Pin-to-pin compatible with the LMR14010A, LMR50410, and TPS560430
  • Various options in pin-to-pin compatible package
    • PFM and forced PWM (FPWM) options

The LMR544xx is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1A and 0.6A load current. With a wide input range of 4V to 36V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR544xx operates at 1.1MHz switching frequency to support use of relatively small inductors for an optimized design size. The devices have a PFM version to realize high efficiency at light load and a FPWM version to achieve constant frequency and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.

The LMR544xx is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1A and 0.6A load current. With a wide input range of 4V to 36V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR544xx operates at 1.1MHz switching frequency to support use of relatively small inductors for an optimized design size. The devices have a PFM version to realize high efficiency at light load and a FPWM version to achieve constant frequency and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LMR544xx SIMPLE SWITCHER Power Converter 4V to 45V, 0.6A/1A Buck Converter in a SOT-23 Package datasheet (Rev. D) PDF | HTML 10 abr 2024
Functional safety information LMR544xx Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 15 oct 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.

Modelo de simulación

LMR54406 PSpice Transient Model (Rev. A)

SLUM800A.ZIP (262 KB) - PSpice Model
Modelo de simulación

LMR54406F PSpice Transient Model

SLUM802.ZIP (273 KB) - PSpice Model
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOT-23 (DBV) 6 Ultra Librarian

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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