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

LM22675

ACTIVO

Convertidor reductor SIMPLE SWITCHER® de 4.5 V a 42 V y 1 A con activación de precisión

Se encuentra disponible una versión más nueva de este producto

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Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
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TPSM560R6H ACTIVO Módulo reductor de 0.6 A con entrada de 4.2 V a 60 V y salida de 1 V a 16 V en QFN de 5 mm × 5.5 mm  Smaller design with an integrated-inductor power module.

Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Over Current Protection Control mode Voltage mode Vout (min) (V) 1.285 Vout (max) (V) 37 Iq (typ) (µA) 3400 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Over Current Protection Control mode Voltage mode Vout (min) (V) 1.285 Vout (max) (V) 37 Iq (typ) (µA) 3400 Duty cycle (max) (%) 90
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control
  • Stable with Low ESR Ceramic Capacitors
  • 200 mΩ N-Channel MOSFET
  • Output Voltage Options:
    -ADJ (Outputs as Low as 1.285 V)
    -5.0 (Output Fixed to 5 V)
  • ±1.5% Feedback Reference Accuracy
  • Switching Frequency of 500 kHz
  • –40°C to 125°C Operating Junction
    Temperature Range
  • Precision Enable Pin
  • Integrated Boot-Strap Diode
  • Integrated Soft-Start
  • Fully WEBENCH® Enabled
  • Step-Down and Inverting Buck-Boost Applications
  • LM22675Q is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C
    Operating Junction Temperature)
  • SO PowerPAD-8 (Exposed Pad) Package
  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control
  • Stable with Low ESR Ceramic Capacitors
  • 200 mΩ N-Channel MOSFET
  • Output Voltage Options:
    -ADJ (Outputs as Low as 1.285 V)
    -5.0 (Output Fixed to 5 V)
  • ±1.5% Feedback Reference Accuracy
  • Switching Frequency of 500 kHz
  • –40°C to 125°C Operating Junction
    Temperature Range
  • Precision Enable Pin
  • Integrated Boot-Strap Diode
  • Integrated Soft-Start
  • Fully WEBENCH® Enabled
  • Step-Down and Inverting Buck-Boost Applications
  • LM22675Q is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C
    Operating Junction Temperature)
  • SO PowerPAD-8 (Exposed Pad) Package

The LM22675 switching regulator provides all of the functions necessary to implement an efficient high voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 1 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5 V output and adjustable output voltage options are available. A switching frequency of 500 kHz allows for small external components and good transient response. A precision enable input allows simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 µA (typ). Built in soft-start (500 µs, typ) saves external components. The LM22675 also has built in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22675 is a member of Texas Instruments’ SIMPLE SWITCHER® family. The SIMPLE SWITCHER concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH design tool. TI’s WEBENCH< tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.

The LM22675 switching regulator provides all of the functions necessary to implement an efficient high voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 1 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5 V output and adjustable output voltage options are available. A switching frequency of 500 kHz allows for small external components and good transient response. A precision enable input allows simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 µA (typ). Built in soft-start (500 µs, typ) saves external components. The LM22675 also has built in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22675 is a member of Texas Instruments’ SIMPLE SWITCHER® family. The SIMPLE SWITCHER concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH design tool. TI’s WEBENCH< tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM22675/-Q1 42 V, 1 A SIMPLE SWITCHER Step-Down Voltage Regulator with Features datasheet (Rev. L) PDF | HTML 04 nov 2014
Application note SIMPLE SWITCHER Regulators Take Over Automotive Applications (Rev. B) PDF | HTML 09 oct 2024
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25 mar 2024
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Technical article Quantifying the value of wide VIN PDF | HTML 15 jun 2016
Technical article DC/DC converter datasheets – System losses demystified PDF | HTML 25 abr 2016
Technical article DC/DC converter datasheets – System efficiency demystified PDF | HTML 18 abr 2016
Application note Know Your Limits 02 jun 2015
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 12 sep 2014
Application note AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B) 06 may 2013
Application note AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A) 06 may 2013
Application note AN-1797 TO-263 THIN Package (Rev. A) 24 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-2020 Thermal Design By Insight, Not Hindsight (Rev. C) 23 abr 2013
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 23 abr 2013
Design guide SIMPLE SWITCHER® Design Guide 11 abr 2011
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

LM22672EVAL — Regulador SIMPLE SWITCHER de 1 A con EVM de ajuste de frecuencia o sincronización y habilitación de

The LM22672 evaluation board is designed to demonstrate the capabilities of the LM22672 switching regulator. The LM22672 evaluation board is configured to provide an output voltage of 3.3V up to 1A load current with an input voltage range of 4.5V to 42V. Due to the low RDS(ON) of the integrated (...)

Guía del usuario: PDF
Kit de desarrollo

EVMK2GX — Módulo de evaluación 66AK2Gx de 1 GHz

The EVMK2GX (also known as "K2G") 1GHz evaluation module (EVM) enables developers to immediately start evaluating the 66AK2Gx processor family, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive (...)

Guía del usuario: PDF
Kit de desarrollo

EVMK2GXS — Módulo de evaluación 66AK2Gx (K2G) de 1 GHz y alta seguridad

The K2G 1GHz High Secure Evaluation Module (EVM) enables developers to start  evaluating and testing the programming of the  high secure developmental version of the  66AK2Gx processor, and to accelerate the next stage of secure boot product development of audio and industrial real (...)

Guía del usuario: PDF
Modelo de simulación

LM22675 TINA-TI Transient Reference Design

SNVM623.ZIP (401 KB) - TINA-TI Reference Design
Modelo de simulación

LM22675 TINA-TI Transient Spice Model

SNVM622.ZIP (21 KB) - TINA-TI Spice Model
Modelo de simulación

LM22675-5.0 PSpice Average Model

SNVM104.ZIP (51 KB) - PSpice Model
Modelo de simulación

LM22675-5.0 PSpice Transient Model

SNVM115.ZIP (204 KB) - PSpice Model
Modelo de simulación

LM22675-5.0 TINA-TI Average Reference Design

SNVM128.TSC (141 KB) - TINA-TI Reference Design
Modelo de simulación

LM22675-5.0 TINA-TI Average Spice Model

SNVM129.ZIP (7 KB) - TINA-TI Spice Model
Modelo de simulación

LM22675-5.0 TINA-TI Line Transient Reference Design

SNVM127.TSC (189 KB) - TINA-TI Reference Design
Modelo de simulación

LM22675-5.0 TINA-TI Load Transient Reference Design

SNVM123.TSC (183 KB) - TINA-TI Reference Design
Modelo de simulación

LM22675-5.0 TINA-TI Startup Transient Reference Design

SNVM124.TSC (216 KB) - TINA-TI Reference Design
Modelo de simulación

LM22675-5.0 TINA-TI Steady State Transient Reference Design

SNVM126.TSC (225 KB) - TINA-TI Reference Design
Modelo de simulación

LM22675-5.0 TINA-TI Transient Spice Model

SNVM125.ZIP (20 KB) - TINA-TI Spice Model
Modelo de simulación

LM22675-5.0 Unencrypted PSpice Average Model

SNVM928.ZIP (1 KB) - PSpice Model
Modelo de simulación

LM22675-5.0 Unencrypted PSpice Transient Model

SNVM930.ZIP (4 KB) - PSpice Model
Modelo de simulación

LM22675-ADJ PSpice Average Model

SNVM282.ZIP (55 KB) - PSpice Model
Modelo de simulación

LM22675-ADJ PSpice Transient Model

SNVM281.ZIP (166 KB) - PSpice Model
Modelo de simulación

LM22675-ADJ Unencrypted PSpice Average Model

SNVM931.ZIP (1 KB) - PSpice Model
Modelo de simulación

LM22675-ADJ Unencrypted PSpice Transient Model

SNVM929.ZIP (4 KB) - PSpice Model
Herramienta de cálculo

LM2267X-22680DESIGN-CALC — Calculadora de componentes de conmutador simple con inicio rápido LM2267x, LM22680

Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HSOIC (DDA) 8 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

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

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