LMR24220

Name: LMR24220
Brand: TI
SKU: LMR24220
Price: 2.323 USD

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Regulador de voltaje reductor de 42 Vin, 2,0 A en micro SMD

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Hoja de datos

document-pdfAcrobat LMR24220 42-VIN, 2-A Step-Down Voltage Regulator in DSBGA Package datasheet (Rev. F) (Inglés) PDF | HTML

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LMR51420

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Convertidor de potencia buck síncrono SIMPLE SWITCHER® 4,5 V a 36 V, 2 A con IQ de 40 µA Smaller footprint in SOT-23 package, integrated compensation and synchronous rectification.

LMR24220

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Detalles del producto

Iout (max) (A)

2

Vin (min) (V)

4.5

Vin (max) (V)

42

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

100

Switching frequency (max) (kHz)

1000

Features

Enable, Over Current Protection, Synchronous Rectification

Control mode

COT with emulated ripple

Vout (min) (V)

0.8

Vout (max) (V)

24

Rating

Catalog

Operating temperature range (°C)

-20 to 125

Iq (typ) (A)

0.0007

Iout (max) (A)

2

Vin (min) (V)

4.5

Vin (max) (V)

42

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

100

Switching frequency (max) (kHz)

1000

Features

Enable, Over Current Protection, Synchronous Rectification

Control mode

COT with emulated ripple

Vout (min) (V)

0.8

Vout (max) (V)

24

Rating

Catalog

Operating temperature range (°C)

-20 to 125

Iq (typ) (A)

0.0007

DSBGA (YPA)

28

0.5625 mm² 0.75 x 0.75

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 R_DS(ON) Synchronous MOSFETs for High Efficiency
Up to 1-MHz Switching Frequency
Low Shutdown I_Q, 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 R_DS(ON) Synchronous MOSFETs for High Efficiency
Up to 1-MHz Switching Frequency
Low Shutdown I_Q, 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 V_CC 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 V_CC 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.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	LMR24220 42-VIN, 2-A Step-Down Voltage Regulator in DSBGA Package datasheet (Rev. F)	PDF \| HTML	17 jun 2019
	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
	Application note	Absolute Maximum Ratings for Soldering (Rev. D)		09 jun 2016
	Application note	Cap Drop Offline Supply for E-Meters		16 jun 2015
	Application note	Inverting Applications Made SIMPLE With LM4600x and LM4360x (Rev. B)		20 feb 2015
	Application note	Thermal Design Made Simple With LM43603 and LM46002		15 sep 2014
	Application note	Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)		12 sep 2014
	Application note	Compensation Made SIMPLE With LM4360x, LM4600x		29 jul 2014
	Application note	Automotive Line Transient Protection Circuit		01 jul 2014
	User guide	AN-2170 LMR24210/20 Evaluation Board (Rev. A)		26 abr 2013
	Application note	AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)		24 abr 2013
	User guide	AN-2193 LMR24220 Multi-Rail Reference Board (Rev. A)		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	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

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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

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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 (...)

Guía del usuario: PDF