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)

LM61495

ACTIVO

Convertidor reductor de 10 A optimizado para densidad de potencia y EMI baja

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LM61495

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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 10 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 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 Vout (min) (V) 1 Vout (max) (V) 34.2 Iq (typ) (µA) 5 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 10 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 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 Vout (min) (V) 1 Vout (max) (V) 34.2 Iq (typ) (µA) 5 Duty cycle (max) (%) 98
VQFN-HR (RPH) 16 15.75 mm² 4.5 x 3.5
  • Functional Safety-Capable
  • Input voltage range from 3 V to 36 V
  • RESET output with filter and delayed release
  • Designed for low EMI:
    • CISPR 11/32 class B compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable at fixed 400 kHz and 2.2 MHz or adjustable from 200 kHz – 2.2 MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency solution
    • 95% efficient for an 8-A load
    • 5-µA input current while unloaded in auto mode
    • <1-µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5-mm × 3.5-mm wettable flank QFN package
  • Functional Safety-Capable
  • Input voltage range from 3 V to 36 V
  • RESET output with filter and delayed release
  • Designed for low EMI:
    • CISPR 11/32 class B compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable at fixed 400 kHz and 2.2 MHz or adjustable from 200 kHz – 2.2 MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency solution
    • 95% efficient for an 8-A load
    • 5-µA input current while unloaded in auto mode
    • <1-µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5-mm × 3.5-mm wettable flank QFN package

The LM6x4xx family of buck regulators are regulators that provide either fixed or adjustable output voltage that can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range or 3 V to 36 V and have transient tolerance up to 42 V.

The family is designed for low EMI. The devices incorporate pin-selectable spread spectrum and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±5.5% (typical), drastically reducing peak emissions through a combination of triangular and pseudo random modulation. DRSS also 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 family of buck regulators are regulators that provide either fixed or adjustable output voltage that can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range or 3 V to 36 V and have transient tolerance up to 42 V.

The family is designed for low EMI. The devices incorporate pin-selectable spread spectrum and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±5.5% (typical), drastically reducing peak emissions through a combination of triangular and pseudo random modulation. DRSS also 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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* Data sheet LM62460, LM61480, and LM61495 Pin-Compatible 6-A/8-A/10-A Buck Converter Optimized for Power Density and Low EMI datasheet (Rev. A) PDF | HTML 19 nov 2021
Application note Design Guide for Inverting Buck-Boost for OLED Panel Applications Using LM61495 PDF | HTML 16 sep 2024
Application note How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck PDF | HTML 16 ago 2023
Application note Using the LM61460-Q1 and LM61495-Q1 in USB Type-C Applications PDF | HTML 15 dic 2021
More literature Advanced power-converter features to reduce EMI PPT 02 dic 2021
Functional safety information LM6xxxx Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 24 mar 2021
Certificate LM61495RPHEVM EU RoHS Declaration of Conformity (DoC) 16 feb 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.

Modelo de simulación

LM61495 PSpice Transient Model

SNVMC87.ZIP (194 KB) - PSpice Model
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Diseños de referencia

PMP23333 — Diseño de referencia de convertidor reductor-elevador inversor síncrono para equipos de comunicacion

Este diseño de referencia utiliza el regulador reductor síncrono LM61495, con transistores de efecto de campo (FET) internos superior e inferior, que está configurado como un convertidor reductor-elevador inversor síncrono. Genera una salida de -8 V capaz de entregar 2.7 A continuos (pico de 4 A) (...)
Test report: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN-HR (RPH) 16 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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