Inicio Administración de potencia Convertidores de CA/CC y CC/CC (FET integrado)
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Administración de potencia
Convertidores de CA/CC y CC/CC (FET integrado)

LM5163-Q1

ACTIVO

Convertidor DC/DC reductor síncrono con entrada de 6 V a 100 V, 0.5 A e IQ ultrabaja para automoción

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LM5163-Q1

ACTIVO
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Detalles del producto

Rating Automotive Topology Buck Switch current limit (typ) (A) 0.5 Iout (max) (A) 0.5 Vin (max) (V) 100 Vin (min) (V) 6 Vout (max) (V) 90 Vout (min) (V) 1.2 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification Control mode Constant on-time (COT) Switching frequency (min) (kHz) 75 Switching frequency (max) (kHz) 1000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 10.5 Duty cycle (max) (%) 99 Type Converter
Rating Automotive Topology Buck Switch current limit (typ) (A) 0.5 Iout (max) (A) 0.5 Vin (max) (V) 100 Vin (min) (V) 6 Vout (max) (V) 90 Vout (min) (V) 1.2 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification Control mode Constant on-time (COT) Switching frequency (min) (kHz) 75 Switching frequency (max) (kHz) 1000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 10.5 Duty cycle (max) (%) 99 Type Converter
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, ambient temperature range
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6V to 100V
    • Junction temperature range: –40°C to +150°C
    • Fixed 3ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Optimized for ultra-low EMI requirements
  • Suited for scalable automotive power supplies
    • Low minimum on- and off-times of 50ns
    • Adjustable switching frequency up to 1MHz
    • Diode emulation for high light-load efficiency
    • 10.5µA no-load input quiescent current
    • 3µA shutdown quiescent current
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 0.725Ω NFET buck switch
    • Integrated 0.34Ω NFET synchronous rectifier eliminates external Schottky diode
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
  • Create a custom regulator design using WEBENCH power designer
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, ambient temperature range
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6V to 100V
    • Junction temperature range: –40°C to +150°C
    • Fixed 3ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Optimized for ultra-low EMI requirements
  • Suited for scalable automotive power supplies
    • Low minimum on- and off-times of 50ns
    • Adjustable switching frequency up to 1MHz
    • Diode emulation for high light-load efficiency
    • 10.5µA no-load input quiescent current
    • 3µA shutdown quiescent current
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 0.725Ω NFET buck switch
    • Integrated 0.34Ω NFET synchronous rectifier eliminates external Schottky diode
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
  • Create a custom regulator design using WEBENCH power designer

The LM5163-Q1 synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on-time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5163-Q1 operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for high-performance 48V battery automotive applications and MHEV/EV systems.

With integrated high-side and low-side power MOSFETs, the LM5163-Q1 delivers up to 0.5A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5163-Q1 include ultra-low IQ and diode emulation mode operation for high light-load efficiency, innovative peak and valley overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.

The LM5163-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ package. The device 1.27mm pin pitch provides adequate spacing for high-voltage applications.

The LM5163-Q1 synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on-time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5163-Q1 operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for high-performance 48V battery automotive applications and MHEV/EV systems.

With integrated high-side and low-side power MOSFETs, the LM5163-Q1 delivers up to 0.5A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5163-Q1 include ultra-low IQ and diode emulation mode operation for high light-load efficiency, innovative peak and valley overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.

The LM5163-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ package. The device 1.27mm pin pitch provides adequate spacing for high-voltage applications.
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Documentación técnica

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* Data sheet LM5163-Q1 100V Input, 0.5A Synchronous Buck DC/DC Converter With Ultra-low IQ datasheet (Rev. A) PDF | HTML 23 abr 2024
Technical article MHEVs: Optimizing the automotive powertrain for efficiency and cost PDF | HTML 24 may 2021
Functional safety information LM5163-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 08 ene 2021
Application note Stability Analysis and Design of COT Type-3 Ripple Circuit 20 mar 2019
Application note DC/DC Buck Converters With Ultra-Low IQ for Industrial Battery-Pack Applications 20 feb 2019
Application brief IC Package Features Lead to Higher Reliability in Automotive Systems 20 feb 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

LM5164-Q1EVM — Módulo de evaluación del convertidor reductor síncrono

El módulo de evaluación LM5164-Q1 (EVM) es un circuito completamente ensamblado y probado para la evaluación del LM5164-Q1, un convertidor reductor sincrónico de 300 kHz.  El LM5164-Q1EVM funciona con una corriente quiescente muy baja y ofrece una eficiencia excepcional con un número mínimo de (...)
Guía del usuario: PDF
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Modelo de simulación

LM5163-Q1 PSPICE TRANS MODEL

SNVMBS8.ZIP (21 KB) - PSpice Model
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Modelo de simulación

LM5163-Q1 TINA-TI Transient Model

SNVMBV2.TSC (631 KB) - TINA-TI Reference Design
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Herramienta de cálculo

LM5163-LM5164DESIGN-CALC — Herramientas de diseño de inicio rápido LM5163 y LM5164 del convertidor

Le damos la bienvenida a la herramienta de diseño de inicio rápido LM5163 y LM5164. Esta herramienta independiente facilita y ayuda al ingeniero de fuentes de alimentación en el diseño de un convertidor buck CC/CC basado en el regulador buck CC/CC síncrono de bajo IQ LM5163 y LM5164. De este modo, (...)
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HSOIC (DDA) 8 Ultra Librarian
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  • 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
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  • Lugar de fabricación
  • Lugar de ensamblaje

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