Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)
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Gestión de la energía
Convertidores de CA/CC y CC/CC (FET integrado)
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LM63460-Q1

ACTIVO

Convertidor reductor síncrono de 3 V a 36 V, 6 A, EMI baja para automoción en encapsulado QFN mejora

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LM63460-Q1

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Detalles del producto

Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34.2 Iq (typ) (µA) 7 Duty cycle (max) (%) 87
Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34.2 Iq (typ) (µA) 7 Duty cycle (max) (%) 87
VQFN-FCRLF (RYF) 22 14 mm² 4 x 3.5
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Versatile synchronous buck DC/DC converter
    • Wide input voltage range of 3 V to 36 V with tolerance for load-dump transients up to 42 V
    • 1% accurate adjustable output voltage from 1 V to 95% V IN
    • 150°C maximum junction temperature
    • Frequency adjustable from 200 kHz to 2.2 MHz using the RT pin or a SYNC signal
  • Improved reliability with optimized pinout design and clearance for short-circuit-to-adjacent-pin test
  • Optimized for low EMI requirements
    • Enhanced HotRod™ QFN package with dual input paths reduces switch-node ringing
    • Spread spectrum frequency modulation
    • Selectable FPWM or PFM mode at light loads
  • High efficiency across the full load range
    • 92.5% at 13.5 V IN, 5 V OUT, 6 A, 2.1 MHz
    • No-load input current: 7-µA typical at 3.3 V OUT
    • Shutdown quiescent current: 0.6-µA typical
    • 0.6-V typical dropout at 6-A load
    • External bias option for improved efficiency
  • Create a custom regulator design using the LM63460-Q1 with WEBENCH Power Designer
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Versatile synchronous buck DC/DC converter
    • Wide input voltage range of 3 V to 36 V with tolerance for load-dump transients up to 42 V
    • 1% accurate adjustable output voltage from 1 V to 95% V IN
    • 150°C maximum junction temperature
    • Frequency adjustable from 200 kHz to 2.2 MHz using the RT pin or a SYNC signal
  • Improved reliability with optimized pinout design and clearance for short-circuit-to-adjacent-pin test
  • Optimized for low EMI requirements
    • Enhanced HotRod™ QFN package with dual input paths reduces switch-node ringing
    • Spread spectrum frequency modulation
    • Selectable FPWM or PFM mode at light loads
  • High efficiency across the full load range
    • 92.5% at 13.5 V IN, 5 V OUT, 6 A, 2.1 MHz
    • No-load input current: 7-µA typical at 3.3 V OUT
    • Shutdown quiescent current: 0.6-µA typical
    • 0.6-V typical dropout at 6-A load
    • External bias option for improved efficiency
  • Create a custom regulator design using the LM63460-Q1 with WEBENCH Power Designer

The LM63460-Q1 derives from a family of automotive synchronous buck DC/DC converters with excellent efficiency and ultra-low I Q. With integrated high-side and low-side MOSFETs, up to 6 A of output current is delivered over a wide input voltage range from 3 V to 36 V, with support for load-dump transients up to 42 V. The converter implements soft recovery from dropout to eliminate overshoot on the output.

The LM63460-Q1 incorporates numerous features for excellent EMI performance, including spread-spectrum frequency modulation, a low-EMI Enhanced HotRod QFN package that mitigates switch-node ringing, and a symmetrical pinout for ideal input capacitor placement. The switching frequency can be set between 200 kHz and 2.2 MHz to avoid sensitive frequency bands, while optimizing efficiency or design size based on the application requirements.

PFM mode enables frequency foldback during light-load operation, allowing an unloaded current consumption of only 7 µA (typical) and high light-load efficiency. A seamless transition between PWM and PFM modes, along with low MOSFET on-resistances and an external bias input, provides exceptional efficiency and thermal performance across the entire load range. The package has several NC pins between critical power pins, which improve the Failure Modes and Effects Analysis (FMEA) result.

The LM63460-Q1 derives from a family of automotive synchronous buck DC/DC converters with excellent efficiency and ultra-low I Q. With integrated high-side and low-side MOSFETs, up to 6 A of output current is delivered over a wide input voltage range from 3 V to 36 V, with support for load-dump transients up to 42 V. The converter implements soft recovery from dropout to eliminate overshoot on the output.

The LM63460-Q1 incorporates numerous features for excellent EMI performance, including spread-spectrum frequency modulation, a low-EMI Enhanced HotRod QFN package that mitigates switch-node ringing, and a symmetrical pinout for ideal input capacitor placement. The switching frequency can be set between 200 kHz and 2.2 MHz to avoid sensitive frequency bands, while optimizing efficiency or design size based on the application requirements.

PFM mode enables frequency foldback during light-load operation, allowing an unloaded current consumption of only 7 µA (typical) and high light-load efficiency. A seamless transition between PWM and PFM modes, along with low MOSFET on-resistances and an external bias input, provides exceptional efficiency and thermal performance across the entire load range. The package has several NC pins between critical power pins, which improve the Failure Modes and Effects Analysis (FMEA) result.
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Documentación técnica

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* Data sheet LM63460-Q13-V to 36-V, 6-AAutomotiveSynchronous Buck DC/DC ConverterWith Adjustable Switching Frequency,Optimized for Reliability and Low EMI datasheet (Rev. B) PDF | HTML 02 oct 2023
User guide LM63460-Q1 and LM64460-Q1 EVM User's Guide PDF | HTML 16 dic 2021
Certificate LM63460EVM-2MHZ EU RoHS Declaration of Conformity (DoC) 09 dic 2021
Functional safety information LM63460-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 27 sep 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.

Placa de evaluación

LM63460EVM — Módulo de evaluación LM63460-Q1 de convertidor reductor síncrono de 5.5 V a 36 V, 6 A y bajo EMI par

El módulo de evaluación (EVM) de alta densidad LM63460EVM-2MHZ está diseñado para mostrar el rendimiento del controlador LM63460-Q1 reductor CC/CC síncrono de alto rendimiento para automoción. El EVM funciona en un amplio rango de tensión de entrada de 5.5 V a 36 V para brindar una salida fija de (...)

Guía del usuario: PDF | HTML
No disponible en TI.com
Herramienta de cálculo

LM63460-LM64460DESIGN-CALC — Herramientas de diseño de inicio rápido LM63460-Q1 y LM64460-Q1

Welcome to LM63460-Q1 and LM64460-Q1 converter quickstart design tool. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator based on this family of synchronous buck power converters. As such, the user can expeditiously arrive at an (...)
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Herramienta de cálculo

SNVR518 — LM63460-Q1 and LM64460-Q1 DC/DC Converter Quickstart Design Tool

Welcome to LM63460-Q1 and LM64460-Q1 converter quickstart design tool. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator based on this family of synchronous buck power converters. As such, the user can expeditiously arrive at an (...)

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
LM63460-Q1 — Convertidor reductor síncrono de 3 V a 36 V, 6 A, EMI baja para automoción en encapsulado QFN mejora LM64460-Q1 — Convertidor reductor síncrono de 3 V a 36 V, 6 A y bajo EMI de calidad automotriz
Desarrollo de hardware
Placa de evaluación
LM63460EVM — Módulo de evaluación LM63460-Q1 de convertidor reductor síncrono de 5.5 V a 36 V, 6 A y bajo EMI par
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Disposición de la PCB

LM63460-Q1, LM64460-Q1 EVM PCB Layout Files

SNVR515.ZIP (5089 KB)
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN-FCRLF (RYF) 22 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

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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