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LM62460-Q1

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Convertidor reductor de 6 A para automoción optimizado para densidad de potencia y EMI baja

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LM62460-Q1

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Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 6 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34.2 Vout (min) (V) 1 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000005 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 6 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34.2 Vout (min) (V) 1 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000005 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
VQFN-HR (RPH) 16 15.75 mm² (4.5 mm × 3.5 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • RESET output with filter and delayed release
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load
    • 5µA input current while unloaded in auto mode
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
    • ϴJA = 21.6°C/W, measured on LM61495RPHEVM
  • Pin-to-pin compatible with LM61480T-Q1 and LM61495T-Q1 for dual-side cooling providing enhanced thermal performance
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • RESET output with filter and delayed release
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load
    • 5µA input current while unloaded in auto mode
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
    • ϴJA = 21.6°C/W, measured on LM61495RPHEVM
  • Pin-to-pin compatible with LM61480T-Q1 and LM61495T-Q1 for dual-side cooling providing enhanced thermal performance

The LM6x4xx-Q1 buck regulator family are automotive-focused regulators providing either fixed or an adjustable output voltage which can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3 to 36V and has transient tolerance up to 42 V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode the device automatically transitions between Fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5 µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.

The LM6x4xx-Q1 buck regulator family are automotive-focused regulators providing either fixed or an adjustable output voltage which can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3 to 36V and has transient tolerance up to 42 V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode the device automatically transitions between Fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5 µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM6x4xx-Q1 Pin-Compatible, 6A, 8A, 10A, Automotive Buck Converter Optimized for Power Density and Low EMI datasheet (Rev. E) PDF | HTML 7/10/2025
Información sobre seguridad funcional LM62460-Q1, LM61480(T)-Q1, and LM61495(T)-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. B) PDF | HTML 12/12/2024
Nota sobre la aplicación How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck PDF | HTML 16/08/2023
Nota sobre la aplicación Configuring LM62460 for Dual-Phase Operation PDF | HTML 12/08/2021
Artículo técnico Lowering audible noise in automotive applications with TI’s DRSS technology PDF | HTML 18/03/2021
Analog Design Journal The pros and cons of spread‐spectrum implementation methods in buck regulators 18/03/2021

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

LM62460RPHEVM — Módulo de evaluación LM62460-Q1 de convertidor reductor síncrono de 6 A y 2.1 MHz

El módulo de evaluación (EVM) LM62460RPHEVM es un circuito totalmente ensamblado y probado para evaluar el convertidor reductor sincrónico LM62460-Q1.  El LM62460-Q1 proporciona una eficiencia excepcional, una IQ baja y una EMI baja en una solución de tamaño pequeño.
Guía del usuario: PDF | HTML
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Modelo de simulación

LM62460-Q1 PSpice Transient Model (Rev. A)

SNVMC29A.ZIP (215 KB) - Modelo PSpice
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Herramienta de cálculo

SNVR498 — LM61495-Q1 Design Tool

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Diseño de referencia

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Este diseño de referencia de radar automotriz es un módulo de sensor de radar en cascada de 76 GHz a 81 GHz. Incluye una matriz en cascada de dos dispositivos AWR2243 y un procesador de radar AM2732R. En esta configuración de radar en cascada, un dispositivo primario distribuye una señal de (...)
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