Inicio Administración de potencia Reguladores conmutados CC/CC Convertidores de CC/CC

LMR24220

ACTIVO

Regulador de voltaje reductor de 42 Vin, 2.0 A en micro SMD

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
LMR51420 ACTIVO Convertidor de potencia SIMPLE SWITCHER® reductor síncrono de 4.5 V a 36 V y 2A, con IQ de 40 µA< Smaller footprint in SOT-23 package, integrated compensation and synchronous rectification.

Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 24 Vout (min) (V) 0.8 Features Enable, Overcurrent protection, Synchronous rectification Control mode COT with emulated ripple Operating temperature range (°C) -20 to 125 Iq (typ) (A) 0.0007 Duty cycle (max) (%) 94
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 24 Vout (min) (V) 0.8 Features Enable, Overcurrent protection, Synchronous rectification Control mode COT with emulated ripple Operating temperature range (°C) -20 to 125 Iq (typ) (A) 0.0007 Duty cycle (max) (%) 94
DSBGA (YPA) 28 0.5625 mm² (— mm × — mm)
  • Input Voltage Range of 4.5 V to 42 V
  • Output Voltage Range of 0.8 V to 24 V
  • Output Current up to 2 A
  • Integrated Low RDS(ON) Synchronous MOSFETs for High Efficiency
  • Up to 1-MHz Switching Frequency
  • Low Shutdown IQ, 25 µA Typical
  • Programmable Soft Start
  • No Loop Compensation Required
  • COT Architecture with ERM
  • Tiny Overall Solution Reduces System Cost
  • Integrated Synchronous MOSFETs Provides High Efficiency at Low Output Voltages
  • COT with ERM Architecture
  • Stable with Low ESR Capacitors
  • 28-Bump DSBGA (3.676 × 2.48 × 0.60 mm maximum) Packaging
  • Create a custom design using the LMR24220 with the WEBENCH® Power Designer
  • Input Voltage Range of 4.5 V to 42 V
  • Output Voltage Range of 0.8 V to 24 V
  • Output Current up to 2 A
  • Integrated Low RDS(ON) Synchronous MOSFETs for High Efficiency
  • Up to 1-MHz Switching Frequency
  • Low Shutdown IQ, 25 µA Typical
  • Programmable Soft Start
  • No Loop Compensation Required
  • COT Architecture with ERM
  • Tiny Overall Solution Reduces System Cost
  • Integrated Synchronous MOSFETs Provides High Efficiency at Low Output Voltages
  • COT with ERM Architecture
  • Stable with Low ESR Capacitors
  • 28-Bump DSBGA (3.676 × 2.48 × 0.60 mm maximum) Packaging
  • Create a custom design using the LMR24220 with the WEBENCH® Power Designer

The LMR24220 synchronously rectified buck converter features all required functions to implement a highly efficient and cost effective buck regulator. It is capable of supplying 2-A to loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a low component count, thus reducing complexity and minimizing board size.

Different from most other COT regulators, the LMR24220 does not rely on output capacitor ESR for stability. The device is designed to work exceptionally well with ceramic and other very low ESR output capacitors. It requires no loop compensation, results in a fast load-transient response and simple circuit implementation. The operating frequency remains nearly constant with line variations due to the inverse relationship between the input voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include VCC undervoltage lockout, output overvoltage protection, thermal shutdown, and gate drive undervoltage lockout. The LMR24220 is available in the small DSBGA low profile chip-scale package.

The LMR24220 synchronously rectified buck converter features all required functions to implement a highly efficient and cost effective buck regulator. It is capable of supplying 2-A to loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a low component count, thus reducing complexity and minimizing board size.

Different from most other COT regulators, the LMR24220 does not rely on output capacitor ESR for stability. The device is designed to work exceptionally well with ceramic and other very low ESR output capacitors. It requires no loop compensation, results in a fast load-transient response and simple circuit implementation. The operating frequency remains nearly constant with line variations due to the inverse relationship between the input voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include VCC undervoltage lockout, output overvoltage protection, thermal shutdown, and gate drive undervoltage lockout. The LMR24220 is available in the small DSBGA low profile chip-scale package.

Descargar Ver vídeo con transcripción Video

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 23
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LMR24220 42-VIN, 2-A Step-Down Voltage Regulator in DSBGA Package datasheet (Rev. F) PDF | HTML 17/06/2019
Nota sobre la aplicación Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25/03/2024
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Nota sobre la aplicación Absolute Maximum Ratings for Soldering (Rev. D) 9/06/2016
Nota sobre la aplicación Cap Drop Offline Supply for E-Meters 16/06/2015
Nota sobre la aplicación Inverting Applications Made SIMPLE With LM4600x and LM4360x (Rev. B) 20/02/2015
Nota sobre la aplicación Thermal Design Made Simple With LM43603 and LM46002 15/09/2014
Nota sobre la aplicación Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 12/09/2014
Nota sobre la aplicación Compensation Made SIMPLE With LM4360x, LM4600x 29/07/2014
Nota sobre la aplicación Automotive Line Transient Protection Circuit 1/07/2014
Guía del usuario AN-2193 LMR24220 Multi-Rail Reference Board (Rev. A) 24/04/2013
Nota sobre la aplicación AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 24/04/2013
Nota sobre la aplicación AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 23/04/2013
Nota sobre la aplicación AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 23/04/2013
Nota sobre la aplicación AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 23/04/2013
Nota sobre la aplicación AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 23/04/2013
Nota sobre la aplicación AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 23/04/2013
Nota sobre la aplicación AN-1197 Selecting Inductors for Buck Converters (Rev. B) 23/04/2013
Nota sobre la aplicación AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 23/04/2013
Nota sobre la aplicación AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 23/04/2013
Nota sobre la aplicación Input and Output Capacitor Selection 19/09/2005
Más documentación SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 12/07/2005
Nota sobre la aplicación AN-643 EMI/RFI Board Design (Rev. B) 3/05/2004

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

LMR24220EVAL — Placa de evaluación del regulador buck LMR24220 de 42 V 2 A de tamaño reducido

The LMR24210/20 Step Down Switching Regulator features all required functions to implement a cost effective, efficient buck power converter capable of supplying up to 1.0A or 2.0A. The Constant On-Time (COT) regulation scheme requires no loop compensation, results in a fast load transient response (...)

Guía del usuario: PDF
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Placa de evaluación

LMR24220RB — Placa de referencia de fuente de alimentación multirraíl LMR24220 de 5 vatios

The LMR24220 Multi-Rail reference board implements an extremely compact solution. It is designed to convert from 12V or 24V rails down to typical point-of-load voltages of 3.3V, 1.8V and 1.2V. This design utilizes an LMR24220 Nano Regulator and two LMZ10501 Nano Modules to demonstrate a complete (...)

Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Modelo de simulación

LMR24220 PSpice Transient Model

SNVM217.ZIP (204 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

LMR24220 Unencrypted PSpice Transient Model

SNVM946.ZIP (3 KB) - Modelo PSpice
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
DSBGA (YPA) 28 Ultra Librarian

Pedidos y calidad

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

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 alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos