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LMR36503E-Q1

ACTIVO

Convertidor automotor buck de 3 V a -65 V y 0.3 A

Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 0.3 Vin (max) (V) 65 Vin (min) (V) 3 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 175 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 0.3 Vin (max) (V) 65 Vin (min) (V) 3 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 175 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
VQFN-HR (RPE) 9 4 mm² 2 x 2
  • AEC-Q100-qualified for automotive applications:
    • Device temperature grade 0: –40°C to +150°C, TA
  • > 70% efficiency at 5mA
    • 4µA IQ (switching) at 24VIN to 3.3VOUT (fixed output option)
  • Miniature design size and low component cost
    • 2mm × 2mm HotRod™ package with wettable flanks
    • Internal compensation
  • Designed for automotive applications:
  • Create a custom design using the LMR36503E-Q1 with the WEBENCH Power Designer
  • AEC-Q100-qualified for automotive applications:
    • Device temperature grade 0: –40°C to +150°C, TA
  • > 70% efficiency at 5mA
    • 4µA IQ (switching) at 24VIN to 3.3VOUT (fixed output option)
  • Miniature design size and low component cost
    • 2mm × 2mm HotRod™ package with wettable flanks
    • Internal compensation
  • Designed for automotive applications:
  • Create a custom design using the LMR36503E-Q1 with the WEBENCH Power Designer

The LMR36503E-Q1 is a 65V, 0.3A synchronous step-down DC/DC converter in 2mm × 2mm HotRod package. This easy-to-use converter can handle input voltage transients up to 70V, provide excellent EMI performance, and support fixed 3.3V, 5V and other adjustable output voltages.

The LMR36503E-Q1 uses peak current mode control architecture with internal compensation and maintains stable operation with minimal output capacitance. The wide input operating range of the LMR36503E-Q1 helps the device remain functional during a deep input voltage sag condition, making the device an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503E-Q1 provides precise indication of the output voltage status, eliminating the requirement for an external supervisor. A seamless transition from FPWM to PFM, with an ultra-low standby quiescent current allows the LMR36503E-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503E-Q1 to an external clock. With the right resistor selection, the LMR36503E-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503E-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

The LMR36503E-Q1 is a 65V, 0.3A synchronous step-down DC/DC converter in 2mm × 2mm HotRod package. This easy-to-use converter can handle input voltage transients up to 70V, provide excellent EMI performance, and support fixed 3.3V, 5V and other adjustable output voltages.

The LMR36503E-Q1 uses peak current mode control architecture with internal compensation and maintains stable operation with minimal output capacitance. The wide input operating range of the LMR36503E-Q1 helps the device remain functional during a deep input voltage sag condition, making the device an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503E-Q1 provides precise indication of the output voltage status, eliminating the requirement for an external supervisor. A seamless transition from FPWM to PFM, with an ultra-low standby quiescent current allows the LMR36503E-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503E-Q1 to an external clock. With the right resistor selection, the LMR36503E-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503E-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet LMR36503E-Q1 3V to 65V, 0.3A , Automotive, Grade 0, Synchronous Buck Converter Optimized for Size and Light Load Efficiency datasheet (Rev. A) PDF | HTML 18 sep 2024
Functional safety information LMR36503E-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 13 jun 2024

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

LMR36503MSCEEVM — Módulo de evaluación LMR360503E-Q1 

El módulo de evaluación (EVM) LMR36503E-Q1 de 0.3 A es un regulador reductor CC/CC de 65 V que emplea rectificación síncrona para lograr una alta eficiencia de conversión en un tamaño reducido. El módulo de evaluación (EVM) LMR36503E-Q1 funciona en un amplio rango de tensión de entrada de 5.5 V a (...)

Guía del usuario: PDF | HTML
Modelo de simulación

LMR36503MSC-Q1 PSpice Unencrypted Transient Model

SNVMC16.ZIP (528 KB) - PSpice Model
Modelo de simulación

LMR36503MSC3-Q1 PSpice Unencrypted Transient Model

SNVMC17.ZIP (530 KB) - PSpice Model
Modelo de simulación

LMR36503RS3-Q1 PSpice Unencrypted Transient Model

SNVMC26.ZIP (517 KB) - PSpice Model
Herramienta de cálculo

LMR36503E-Q1-CALC LMR36503, LMR36503-Q1, LMR36503E-Q1 converter quickstart tool

Welcome to the quickstart design tool for the LMR36503, LMR36503-Q1, and LMR36503E-Q1. This tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator based on the above converter family to meet application requirements.
Productos y hardware compatibles

Productos y hardware compatibles

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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

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Soporte y capacitación

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