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

LM5575

ACTIVO

Regulador reductor con Vin amplia de 6 V a 75 V y 1.5 A

Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 6 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 500 Features Enable, Frequency synchronization, Over Current Protection, Tracking Control mode current mode Vout (min) (V) 1.23 Vout (max) (V) 70 Iq (typ) (µA) 1000 Duty cycle (max) (%) 95
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 6 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 500 Features Enable, Frequency synchronization, Over Current Protection, Tracking Control mode current mode Vout (min) (V) 1.23 Vout (max) (V) 70 Iq (typ) (µA) 1000 Duty cycle (max) (%) 95
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • LM5575Q is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (−40°C to + 125°C Operating Junction Temperature)
  • Integrated 75V, 330mΩ N-channel MOSFET
  • Ultra-wide Input Voltage Range from 6V to 75V
  • Adjustable Output Voltage as Low as 1.225V
  • 1.5% Feedback Reference Accuracy
  • Operating Frequency Adjustable Between 50kHz and 500kHz with Single Resistor
  • Master or Slave Frequency Synchronization
  • Adjustable Soft-Start
  • Emulated Current Mode Control Architecture
  • Wide Bandwidth Error Amplifier
  • Built-in Protection
  • Automotive Grade Product Datasheet that is AEC-Q100 Grade 0 Qualified is Available Upon Request.
    • (−40°C to + 150°C Operating Junction Temperature)

Package

  • HTSSOP-16EP (Exposed Pad)

WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

  • LM5575Q is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (−40°C to + 125°C Operating Junction Temperature)
  • Integrated 75V, 330mΩ N-channel MOSFET
  • Ultra-wide Input Voltage Range from 6V to 75V
  • Adjustable Output Voltage as Low as 1.225V
  • 1.5% Feedback Reference Accuracy
  • Operating Frequency Adjustable Between 50kHz and 500kHz with Single Resistor
  • Master or Slave Frequency Synchronization
  • Adjustable Soft-Start
  • Emulated Current Mode Control Architecture
  • Wide Bandwidth Error Amplifier
  • Built-in Protection
  • Automotive Grade Product Datasheet that is AEC-Q100 Grade 0 Qualified is Available Upon Request.
    • (−40°C to + 150°C Operating Junction Temperature)

Package

  • HTSSOP-16EP (Exposed Pad)

WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

The LM5575 is an easy to use SIMPLE SWITCHER® buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 - 75V, the LM5575 delivers 1.5A of continuous output current with an integrated 330mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5575 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced HTSSOP-16 package featuring an exposed die attach pad for thermal dissipation. The LM5575 is supported by the full suite of WEBENCH On-Line design tools.

The LM5575 is an easy to use SIMPLE SWITCHER® buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 - 75V, the LM5575 delivers 1.5A of continuous output current with an integrated 330mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5575 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced HTSSOP-16 package featuring an exposed die attach pad for thermal dissipation. The LM5575 is supported by the full suite of WEBENCH On-Line design tools.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM5575/LM5575Q SIMPLE SWITCHER® 75V, 1.5A Step-Down Switching Regulator datasheet (Rev. G) 04 abr 2013
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25 mar 2024
White paper Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A) 03 jul 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Technical article How to increase system reliability and simplify design using DC/DC converters PDF | HTML 13 jun 2016
Technical article The importance of accurate switching frequency and current limit when selecting bu PDF | HTML 19 abr 2016
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 12 sep 2014
Application note AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A) 06 may 2013
EVM User's guide AN-1569 LM5575 Evaluation Board (Rev. C) 26 abr 2013
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 24 abr 2013
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 23 abr 2013
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) 23 abr 2013
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 23 abr 2013
Application note AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 23 abr 2013
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 23 abr 2013
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 23 abr 2013
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 23 abr 2013
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 23 abr 2013
Application note Quick Start Guide for a 1.5 Amp Buck Regulator Using the LM5575 and LM25575 (Rev. B) 23 abr 2013
Application note Understanding and Applying Current-Mode Control Theory 19 ago 2007
Application note Input and Output Capacitor Selection 19 sep 2005
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 12 jul 2005
Application note AN-643 EMI/RFI Board Design (Rev. B) 03 may 2004

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

LM5575EVAL — Módulo de evaluación de regulador reductor de conmutación de 75 V y 1.5 A

The LM5575 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5575 regulator IC. The evaluation board provides a 5V output with a 1.5A current capability. The ultra-wide input voltage ranges (...)

Guía del usuario: PDF
Modelo de simulación

LM5575 Non-Inverting and Inverting PSpice Transient Model (Rev. A)

SNVM033A.ZIP (86 KB) - PSpice Model
Modelo de simulación

LM5575 PSpice Average Model

SNVMBI3.ZIP (95 KB) - PSpice Model
Modelo de simulación

LM5575 TINA-TI Transient Reference Design

SNVM352.TSC (146 KB) - TINA-TI Reference Design
Modelo de simulación

LM5575 TINA-TI Transient Spice Model

SNVM351.ZIP (17 KB) - TINA-TI Spice Model
Modelo de simulación

LM5575 Unencrypted PSpice Average Model

SNVMBI2.ZIP (2 KB) - PSpice Model
Herramienta de cálculo

LM2557X-557XQUICK-CALC — Calculadora de componentes con inicio rápido SIMPLE SWITCHER LM(2)557x

Herramienta de cálculo

SIMPLESWITCHER-COMPONENT-CALC — Calculadora de componentes de inicio rápido SIMPLE SWITCHER LM(2)557x descargable

Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 16 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

Soporte y capacitación

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