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LM22679-Q1

ACTIVO

Regulador de tensión reductor de 5 A SIMPLE SWITCHER con arranque suave ajustable y límite de corrie

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LM63460-Q1 ACTIVO Convertidor reductor síncrono de 3 V a 36 V, 6 A y bajo EMI de calidad automotriz en un encapsulado Smaller device footprint, enhanced HotRod™ QFN package, spread spectrum and selectable FPWM or PFM modes.

LM22679-Q1

ACTIVO
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Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 5 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 37 Vout (min) (V) 1.285 Features Adjustable current limit, Fixed Output, Over Current Protection, Soft Start Adjustable Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0034 Duty cycle (max) (%) 90
Rating Automotive Topology Buck Iout (max) (A) 5 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 37 Vout (min) (V) 1.285 Features Adjustable current limit, Fixed Output, Over Current Protection, Soft Start Adjustable Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0034 Duty cycle (max) (%) 90
TO-263 (NDR) 7 142.3416 mm² (10.16 mm × 14.01 mm)
  • New product available: LM61460 3-V to 36-V, 6-A low EMI synchronous converter
  • Wide input voltage range: 4.5 V to 42 V
  • Internally compensated voltage mode control
  • Stable with low-ESR ceramic capacitors
  • 100-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
  • Adjustable soft start
  • Adjustable current limit
  • Integrated bootstrap diode
  • Fully WEBENCH enabled
  • LM22679-Q1 is AEC-Q100 qualified and manufactured on an automotive-grade flow
  • PFM (exposed pad) package
  • New product available: LM61460 3-V to 36-V, 6-A low EMI synchronous converter
  • Wide input voltage range: 4.5 V to 42 V
  • Internally compensated voltage mode control
  • Stable with low-ESR ceramic capacitors
  • 100-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
  • Adjustable soft start
  • Adjustable current limit
  • Integrated bootstrap diode
  • Fully WEBENCH enabled
  • LM22679-Q1 is AEC-Q100 qualified and manufactured on an automotive-grade flow
  • PFM (exposed pad) package

The LM22679 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 that can provide up to 5 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. An adjustable soft-start feature is provided through the selection of a single external capacitor. In addition, the switch-current limit can be programmed with a single external resistor, allowing solution optimization. The LM22679 device also has built-in thermal shutdown and current limiting to protect against accidental overloads.

The new product, LM61460, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare. Start WEBENCH design with LM61460

The LM22679 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 LM22679 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 that can provide up to 5 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. An adjustable soft-start feature is provided through the selection of a single external capacitor. In addition, the switch-current limit can be programmed with a single external resistor, allowing solution optimization. The LM22679 device also has built-in thermal shutdown and current limiting to protect against accidental overloads.

The new product, LM61460, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare. Start WEBENCH design with LM61460

The LM22679 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.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM22679/-Q1 42-V, 5-A SIMPLE SWITCHER® Step-Down Voltage Regulator With Easy-to-Use Package datasheet (Rev. M) PDF | HTML 23/10/2020
Nota sobre la aplicación Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25/03/2024
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 AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A) 6/05/2013
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.

Modelo de simulación

LM22679-5.0 PSpice Average Model

SNVM152.ZIP (49 KB) - Modelo PSpice
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LM22679-5.0 PSpice Transient Model

SNVM137.ZIP (191 KB) - Modelo PSpice
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LM22679-5.0 Unencrypted PSpice Average Model

SNVM890.ZIP (1 KB) - Modelo PSpice
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Modelo de simulación

LM22679-ADJ PSpice Average Model

SNVM284.ZIP (53 KB) - Modelo PSpice
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LM22679-ADJ PSpice Transient Model

SNVM283.ZIP (234 KB) - Modelo PSpice
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Modelo de simulación

LM22679-ADJ Unencrypted PSpice Average Model

SNVM829.ZIP (1 KB) - Modelo PSpice
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Modelo de simulación

LM22679-ADJ Unencrypted PSpice Transient Model

SNVM828.ZIP (4 KB) - Modelo PSpice
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TO-263 (NDR) 7 Ultra Librarian
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