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

LM22674

ACTIVO

Convertidor reductor SIMPLE SWITCHER® de 4.5 V a 42 V y 500 mA con activación de precisión

Haga su pedido ahora
Hoja de datos

Se encuentra disponible una versión más nueva de este producto

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
LMR54406 ACTIVO Convertidor de potencia SIMPLE SWITCHER® con entrada de 4 V a 36 V, 0.6 A, síncrono reductor e IQ de Smaller footprint, lower quiescent current, FPWM and PFM options.
TLVM13620 ACTIVO Módulo reductor de 3.6 V a 36 V de entrada, 1 V a 6 V de salida, 2 A, en encapsulado de 4 mm x 6 mm  Save board space, simplify design and speed time to market with an integrated-inductor power module.
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.

LM22674

ACTIVO
Hoja de datos Haga su pedido ahora

Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.5 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) 0.5 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
  • LM22674-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified
    (–40°C to +125°C Operating Junction
    Temperature)
  • SO PowerPAD (Exposed Pad)
  • 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
  • LM22674-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified
    (–40°C to +125°C Operating Junction
    Temperature)
  • SO PowerPAD (Exposed Pad)

The LM22674 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 500 mA 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 LM22674 also has built in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22674 device 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 LM22674 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 500 mA 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 LM22674 also has built in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22674 device 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.
filter Buscar otro/a Convertidores de CA/CC y CC/CC (FET integrado)
Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS560430 ACTIVO Regulador reductor SIMPLE SWITCHER® de 36 V y 600 mA con modo de suspensión de alta eficiencia Next-generation 36-V, 600-mA buck regulator with high-efficiency sleep mode.

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 24
Tipo Título Fecha
* Data sheet LM22674/-Q1 42 V, 500 mA SIMPLE SWITCHER® Step-Down Voltage Regulator with Features datasheet (Rev. M) 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 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-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

LM22671EVAL — Regulador SIMPLE SWITCHER de 0.5 A con EVM de ajuste de frecuencia o sincronización y habilitación d

The LM22671 evaluation board is designed to demonstrate the capabilities of the LM22671switching regulator. The LM22671 evaluation board is configured to provide an output voltage of 3.3V up to 500 mA load current with an input voltage range of 4.5V to 42V. The typical operating frequency is 500 (...)

Guía del usuario: PDF
No disponible en TI.com
Modelo de simulación

LM22674-5.0 PSpice Average Model

SNVM178.ZIP (52 KB) - PSpice Model
Descargar
Modelo de simulación

LM22674-5.0 PSpice Transient Model (Rev. A)

SNVM177A.ZIP (209 KB) - PSpice Model
Descargar
Modelo de simulación

LM22674-5.0 TINA-TI Average Reference Design

SNVM180.TSC (142 KB) - TINA-TI Reference Design
Descargar
Modelo de simulación

LM22674-5.0 TINA-TI Average Spice Model

SNVM179.ZIP (8 KB) - TINA-TI Spice Model
Descargar
Modelo de simulación

LM22674-5.0 TINA-TI Transient Line Reference Design

SNVM173.TSC (186 KB) - TINA-TI Reference Design
Descargar
Modelo de simulación

LM22674-5.0 TINA-TI Transient Load Reference Design

SNVM172.TSC (184 KB) - TINA-TI Reference Design
Descargar
Modelo de simulación

LM22674-5.0 TINA-TI Transient Spice Model

SNVM175.ZIP (20 KB) - TINA-TI Spice Model
Descargar
Modelo de simulación

LM22674-5.0 TINA-TI Transient Startup Reference Design

SNVM176.TSC (219 KB) - TINA-TI Reference Design
Descargar
Modelo de simulación

LM22674-5.0 TINA-TI Transient Steady State Reference Design

SNVM174.TSC (226 KB) - TINA-TI Reference Design
Descargar
Modelo de simulación

LM22674-5.0 Unencrypted PSpice Average Model

SNVM925.ZIP (1 KB) - PSpice Model
Descargar
Modelo de simulación

LM22674-5.0 Unencrypted PSpice Transient Model

SNVM926.ZIP (4 KB) - PSpice Model
Descargar
Modelo de simulación

LM22674-ADJ PSpice Average Model

SNVM312.ZIP (53 KB) - PSpice Model
Descargar
Modelo de simulación

LM22674-ADJ PSpice Transient Model

SNVM313.ZIP (208 KB) - PSpice Model
Descargar
Modelo de simulación

LM22674-ADJ Unencrypted PSpice Average Model

SNVM900.ZIP (1 KB) - PSpice Model
Descargar
Modelo de simulación

LM22674-ADJ Unencrypted PSpice Transient Model

SNVM899.ZIP (4 KB) - PSpice Model
Descargar
Herramienta de cálculo

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

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

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

Ver todos los temas del foro en inglés

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. ​​​​​​​​​​​​​​

Videos