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LM60440-Q1

ACTIVO

Convertidor síncrono automotriz, 36 V, 4 A, EMI QFN mejorado con flanco humectable

Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 4 Vin (max) (V) 36 Vin (min) (V) 3.8 Vout (max) (V) 24 Vout (min) (V) 1 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO adjustable, Wettable flanks package Control mode current mode Switching frequency (min) (kHz) 340 Switching frequency (max) (kHz) 460 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 24 Duty cycle (max) (%) 98 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 4 Vin (max) (V) 36 Vin (min) (V) 3.8 Vout (max) (V) 24 Vout (min) (V) 1 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO adjustable, Wettable flanks package Control mode current mode Switching frequency (min) (kHz) 340 Switching frequency (max) (kHz) 460 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 24 Duty cycle (max) (%) 98 Type Converter
WQFN-FCRLF (RPK) 13 6 mm² 3 x 2
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Low EMI and switching noise
    • Meets CISPR25 class 5 standard
    • Enhanced QFN package minimizes parasitic inductance and switch node ringing
  • Configured for automotive applications
    • Standard QFN footprint: single large thermal pad and all pins accessible from perimeter
    • Pin compatible variants:
    • Junction temperature range –40°C to +150°C
    • ±1.5% total output regulation accuracy
    • Frequency: 400 kHz
    • Output voltage range: 1 V to 24 V
  • High efficiency power conversion at all loads
    • Peak efficiency > 95%
    • 90% PFM efficiency at 10-mA, 12 VIN, 5 VOUT
    • Low operating quiescent current of 25 µA
  • Create a custom design using the LM60440-Q1 with the WEBENCH® Power Designer
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Low EMI and switching noise
    • Meets CISPR25 class 5 standard
    • Enhanced QFN package minimizes parasitic inductance and switch node ringing
  • Configured for automotive applications
    • Standard QFN footprint: single large thermal pad and all pins accessible from perimeter
    • Pin compatible variants:
    • Junction temperature range –40°C to +150°C
    • ±1.5% total output regulation accuracy
    • Frequency: 400 kHz
    • Output voltage range: 1 V to 24 V
  • High efficiency power conversion at all loads
    • Peak efficiency > 95%
    • 90% PFM efficiency at 10-mA, 12 VIN, 5 VOUT
    • Low operating quiescent current of 25 µA
  • Create a custom design using the LM60440-Q1 with the WEBENCH® Power Designer

The LM604x0-Q1 automotive-qualified regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for automotive applications. The LM60430-Q1 drives up to 3-A of load current, and the LM60440-Q1 is industry’s smallest 4A step-down converter.

The LM604x0-Q1 is available in an ultra-miniature WQFN package with wettable flanks and a standard QFN pin-out with a thermal pad to enhance thermal performance. This enhanced QFN package features extremely small parasitic inductance and resistance, enabling very high efficiency while minimizing switch node ringing and dramatically reducing EMI.

The LM604x0-Q1 uses peak-current-mode control to automatically fold back frequency at light load to ensure exceptional efficiency across the entire load range. The low power dissipation paired with a thermally optimized QFN package enables a power dense solution size. In addition the device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LM604x0-Q1 are designed to simplify implementation for a wide range of end equipment.

The LM604x0-Q1 automotive-qualified regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for automotive applications. The LM60430-Q1 drives up to 3-A of load current, and the LM60440-Q1 is industry’s smallest 4A step-down converter.

The LM604x0-Q1 is available in an ultra-miniature WQFN package with wettable flanks and a standard QFN pin-out with a thermal pad to enhance thermal performance. This enhanced QFN package features extremely small parasitic inductance and resistance, enabling very high efficiency while minimizing switch node ringing and dramatically reducing EMI.

The LM604x0-Q1 uses peak-current-mode control to automatically fold back frequency at light load to ensure exceptional efficiency across the entire load range. The low power dissipation paired with a thermally optimized QFN package enables a power dense solution size. In addition the device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LM604x0-Q1 are designed to simplify implementation for a wide range of end equipment.

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LM60430-Q1 ACTIVO Convertidor síncrono automotriz, 36 V, 3 A, en QFN con flanco humectable y almohadilla externa Automotive version with 3-A rating

Documentación técnica

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Tipo Título Fecha
* Data sheet LM604x0-Q1 3.8-V to 36-V, 3-A, and 4-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. A) PDF | HTML 17 jun 2020
White paper Time-Saving and Cost-Effective Innovations for EMI Reduction (Rev. A) PDF | HTML 28 nov 2023
Application note Enhanced HotRod QFN Package: Industry-Best Size with Low EMI (Rev. A) PDF | HTML 17 ago 2021
Functional safety information LM604x0-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 01 oct 2020
Certificate LM60440AQEVM EU Declaration of Conformity (DoC) 08 sep 2020
EVM User's guide LM60440AQEVM User's Guide 08 oct 2019

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

LM60440AQEVM — Módulo de evaluación del convertidor reductor síncrono de 36 V, 4 A y 2x3 mm

El módulo de evaluación (EVM) LM60440AQEVM ayuda a los diseñadores a evaluar el funcionamiento y el rendimiento del regulador reductor de entrada amplia LM60440-Q1. El LM60440-Q1 es un convertidor CC/CC reductor sincrónico fácil de usar capaz de manejar hasta 4 A de corriente de carga a partir de (...)
Guía del usuario: PDF
Modelo de simulación

LM60440A-Q1 PSpice Unencrypted Transient Model

SNVMBY4.ZIP (158 KB) - PSpice Model
Herramienta de cálculo

SNVR483 LM60440-Q1 Quick Start Calculator

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
LM60440 Convertidor síncrono, 36 V, 4 A, EMI QFN mejorado con flanco humectable y almohadilla externa LM60440-Q1 Convertidor síncrono automotriz, 36 V, 4 A, EMI QFN mejorado con flanco humectable
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN-FCRLF (RPK) 13 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

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Soporte y capacitación

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