Integrated Circuits (ICs)

LM22676QMRX-5.0/NOPB

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3A SIMPLE SWITCHER, STEP-DOWN VOLTAGE REGULATOR WITH PRECISION ENABLE

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Search across all available documentation for this part.

DocumentsAN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)+18

Integrated Circuits (ICs)

LM22676QMRX-5.0/NOPB

Active

Texas Instruments

3A SIMPLE SWITCHER, STEP-DOWN VOLTAGE REGULATOR WITH PRECISION ENABLE

Deep-Dive with AI

DocumentsAN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)+18

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM22676QMRX-5.0/NOPB

Current - Output	3 A
Frequency - Switching	500 kHz
Function	Step-Down
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	8-PowerSOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Qualification	AEC-Q100
Supplier Device Package	8-SO PowerPad
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	42 V
Voltage - Input (Min) [Min]	4.5 V
Voltage - Output (Min/Fixed)	5 V

LM22676-Q1 Series

3A SIMPLE SWITCHER, Step-Down Voltage Regulator with Precision Enable

Part	Current - Output	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs	Voltage - Input (Max) [Max]	Qualification	Voltage - Input (Min) [Min]	Voltage - Output (Min/Fixed)	Package / Case	Output Configuration	Frequency - Switching	Topology	Output Type	Grade	Function	Mounting Type	Voltage - Output (Max)	Output Type	Package / Case [y]	Package / Case [x]
Texas Instruments LM22676QTJE-ADJ/NOPB	3 A	TO-263-7 Thin	-40 °C	125 ¯C	1	42 V	AEC-Q100	4.5 V	1.285 V	TO-263-7 Thin	Positive	500 kHz	Buck	Adjustable	Automotive	Step-Down	Surface Mount	37 V
Texas Instruments LM22676QTJ-5.0/NOPB	3 A	TO-263-7 Thin	-40 °C	125 ¯C	1	42 V	AEC-Q100	4.5 V	5 V	TO-263-7 Thin	Positive	500 kHz	Buck		Automotive	Step-Down	Surface Mount		1.81 mOhm
Texas Instruments LM22676TJ-ADJ/NOPB	3 A	TO-263-7 Thin	-40 °C	125 ¯C	1	42 V		4.5 V	1.285 V	TO-263-7 Thin	Positive	500 kHz	Buck	Adjustable		Step-Down	Surface Mount	37 V
Texas Instruments LM22676QMRX-ADJ/NOPB	3 A	8-SO PowerPad	-40 °C	125 ¯C	1	42 V	AEC-Q100	4.5 V	1.285 V	8-PowerSOIC	Positive	500 kHz	Buck	Adjustable	Automotive	Step-Down	Surface Mount	37 V		3.9 mm	0.154 in
Texas Instruments LM22676TJE-5.0/NOPB	3 A	TO-263-7 Thin	-40 °C	125 ¯C	1	42 V		4.5 V	5 V	TO-263-7 Thin	Positive	500 kHz	Buck			Step-Down	Surface Mount		1.81 mOhm
Texas Instruments LM22676QMRE-ADJ/NOPB	3 A	8-SO PowerPad	-40 °C	125 ¯C	1	42 V	AEC-Q100	4.5 V	1.285 V	8-PowerSOIC	Positive	500 kHz	Buck	Adjustable	Automotive	Step-Down	Surface Mount	37 V		3.9 mm	0.154 in
Texas Instruments LM22676MRE-5.0/NOPB	3 A	8-SO PowerPad	-40 °C	125 ¯C	1	42 V		4.5 V	5 V	8-PowerSOIC	Positive	500 kHz	Buck			Step-Down	Surface Mount		1.81 mOhm	3.9 mm	0.154 in
Texas Instruments LM22676QMRX-5.0/NOPB	3 A	8-SO PowerPad	-40 °C	125 ¯C	1	42 V	AEC-Q100	4.5 V	5 V	8-PowerSOIC	Positive	500 kHz	Buck		Automotive	Step-Down	Surface Mount		1.81 mOhm	3.9 mm	0.154 in
Texas Instruments LM22676MRX-ADJ/NOPB	3 A	8-SO PowerPad	-40 °C	125 ¯C	1	42 V		4.5 V	1.285 V	8-PowerSOIC	Positive	500 kHz	Buck	Adjustable		Step-Down	Surface Mount	37 V		3.9 mm	0.154 in
Texas Instruments LM22676QMRE-5.0/NOPB	3 A	8-SO PowerPad	-40 °C	125 ¯C	1	42 V	AEC-Q100	4.5 V	5 V	8-PowerSOIC	Positive	500 kHz	Buck		Automotive	Step-Down	Surface Mount		1.81 mOhm	3.9 mm	0.154 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 2.76
Texas Instruments	LARGE T&R	1	$ 4.15
		100	$ 3.64
		250	$ 2.55
		1000	$ 2.06

Description

General part information

LM22676-Q1 Series

The LM22676 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 3 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 LM22676 also has built in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22676 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.

Documents

Technical documentation and resources

LM22676QMRX-5.0/NOPB

Deep-Dive with AI

LM22676QMRX-5.0/NOPB

Deep-Dive with AI

Technical Specifications

LM22676-Q1 Series

Pricing

Description

LM22676-Q1 Series

Documents

AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)

AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)

LM22676/-Q1 42 V, 3 A SIMPLE SWITCHER® Step-Down Voltage Regulator with Features datasheet (Rev. L)

Input and Output Capacitor Selection

AN-1197 Selecting Inductors for Buck Converters (Rev. B)

AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)

AN-643 EMI/RFI Board Design (Rev. B)

SIMPLE SWITCHER® Design Guide

AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)

AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)

AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)

AN-1797 TO-263 THIN Package (Rev. A)

SIMPLE SWITCHER Regulators Take Over Automotive Applications (Rev. B)

AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B)

Semiconductor and IC Package Thermal Metrics (Rev. D)

Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)

AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)

AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)

AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)

AN-2020 Thermal Design By Insight, Not Hindsight (Rev. C)

LM22676-Q1 Series