LM22670QTJE-ADJ/NOPB

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Texas Instruments

3A SIMPLE SWITCHER, STEP-DOWN VOLTAGE REGULATOR WITH SYNCHRONIZATION OR ADJUSTABLE SWITCHING FREQ

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DocumentsLow EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B)+9

LM22670QTJE-ADJ/NOPB

Active

Texas Instruments

3A SIMPLE SWITCHER, STEP-DOWN VOLTAGE REGULATOR WITH SYNCHRONIZATION OR ADJUSTABLE SWITCHING FREQ

Deep-Dive with AI

DocumentsLow EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B)+9

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	LM22670QTJE-ADJ/NOPB	LM22670 Series

Board Type	-	Fully Populated
Current - Output	3 A	1.5 - 3 A
Frequency - Switching	500 kHz	500 kHz
Function	Step-Down	Step-Down
Grade	Automotive	Automotive
Main Purpose	-	DC/DC, Step Down
Mounting Type	Surface Mount	Surface Mount
Number of Outputs	1	1
Operating Temperature [Max]	125 ¯C	125 ¯C
Operating Temperature [Min]	-40 °C	-40 °C
Output Configuration	Positive	Positive
Output Type	Adjustable	Adjustable
Output Type	-	27.03 °C/W
Outputs and Type	-	Non-Isolated
Outputs and Type	-	1
Package / Case	TO-263-7 Thin	TO-263-7 Thin, 8-PowerSOIC
Package / Case	-	3.9 mm
Package / Case	-	0.154 in
Qualification	AEC-Q100	AEC-Q100
Supplied Contents	-	Board(s)
Supplier Device Package	TO-263-7 Thin	TO-263-7 Thin, 8-SO PowerPad
Synchronous Rectifier	False	False
Topology	Buck	Buck
Utilized IC / Part	-	LM22670
Voltage - Input	-	5 V
Voltage - Input	-	35 V
Voltage - Input (Max) [Max]	42 V	42 V
Voltage - Input (Min) [Min]	4.5 V	4.5 V
Voltage - Output	-	5 V
Voltage - Output (Max) [Max]	37 V	37 V
Voltage - Output (Min/Fixed)	-	5 V
Voltage - Output (Min/Fixed) [Min]	1.285 V	1.285 V

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 6.62
		10	$ 5.94
		25	$ 5.62
		100	$ 4.87
	Digi-Reel®	1	$ 6.62
		10	$ 5.94
		25	$ 5.62
		100	$ 4.87
	Tape & Reel (TR)	250	$ 4.62
		500	$ 4.14
		1250	$ 3.50
		2500	$ 3.32
Texas Instruments	SMALL T&R	1	$ 4.55
		100	$ 3.71
		250	$ 2.91
		1000	$ 2.47

LM22670 Series

3A SIMPLE SWITCHER, Step-Down Voltage Regulator with Synchronization or Adjustable Switching Freq

Part	Topology	Current - Output	Number of Outputs	Voltage - Input (Max) [Max]	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Output Configuration	Voltage - Output (Min/Fixed) [Min]	Supplier Device Package	Frequency - Switching	Grade	Function	Output Type	Qualification	Voltage - Output (Max) [Max]	Voltage - Input (Min) [Min]	Voltage - Input [Min]	Voltage - Input [Max]	Voltage - Output	Utilized IC / Part	Board Type	Outputs and Type	Outputs and Type	Main Purpose	Supplied Contents	Output Type	Voltage - Output (Min/Fixed)	Package / Case [custom]	Package / Case [custom]
Texas Instruments LM22670QTJ-ADJ/NOPB	Buck	3 A	1	42 V	TO-263-7 Thin	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	TO-263-7 Thin	500 kHz	Automotive	Step-Down	Adjustable	AEC-Q100	37 V	4.5 V
Texas Instruments LM22670INVEVAL/NOPB		1.5 A										500 kHz							5 V	35 V	5 V	LM22670	Fully Populated	Non-Isolated	1	DC/DC, Step Down	Board(s)
Texas Instruments LM22670MRX-5.0/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive		8-SO PowerPad	500 kHz		Step-Down				4.5 V										27.03 °C/W	5 V	3.9 mm	0.154 in
Texas Instruments LM22670QMRX-ADJ/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	8-SO PowerPad	500 kHz	Automotive	Step-Down	Adjustable	AEC-Q100	37 V	4.5 V												3.9 mm	0.154 in
Texas Instruments LM22670TJE-5.0/NOPB	Buck	3 A	1	42 V	TO-263-7 Thin	125 ¯C	-40 °C	Surface Mount	Positive		TO-263-7 Thin	500 kHz		Step-Down				4.5 V										27.03 °C/W	5 V
Texas Instruments LM22670QMRE-5.0/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive		8-SO PowerPad	500 kHz	Automotive	Step-Down		AEC-Q100		4.5 V										27.03 °C/W	5 V	3.9 mm	0.154 in
Texas Instruments LM22670QMR-5.0/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive		8-SO PowerPad	500 kHz	Automotive	Step-Down		AEC-Q100		4.5 V										27.03 °C/W	5 V	3.9 mm	0.154 in
Texas Instruments LM22670QTJE-ADJ/NOPB	Buck	3 A	1	42 V	TO-263-7 Thin	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	TO-263-7 Thin	500 kHz	Automotive	Step-Down	Adjustable	AEC-Q100	37 V	4.5 V
Texas Instruments LM22670MRX-ADJ/J7002408	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	8-SO PowerPad	500 kHz	Automotive	Step-Down	Adjustable	AEC-Q100	37 V	4.5 V												3.9 mm	0.154 in
Texas Instruments LM22670TJ-5.0/NOPB	Buck	3 A	1	42 V	TO-263-7 Thin	125 ¯C	-40 °C	Surface Mount	Positive		TO-263-7 Thin	500 kHz		Step-Down				4.5 V										27.03 °C/W	5 V
Texas Instruments LM22670MRE-5.0/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive		8-SO PowerPad	500 kHz		Step-Down				4.5 V										27.03 °C/W	5 V	3.9 mm	0.154 in
Texas Instruments LM22670TJ-ADJ/NOPB	Buck	3 A	1	42 V	TO-263-7 Thin	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	TO-263-7 Thin	500 kHz		Step-Down	Adjustable		37 V	4.5 V
Texas Instruments LM22670MRX-ADJ/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	8-SO PowerPad	500 kHz		Step-Down	Adjustable		37 V	4.5 V												3.9 mm	0.154 in
Texas Instruments LM22670MR-ADJ/J7002406	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	8-SO PowerPad	500 kHz	Automotive	Step-Down	Adjustable	AEC-Q100	37 V	4.5 V												3.9 mm	0.154 in
Texas Instruments LM22670QTJ-5.0/NOPB	Buck	3 A	1	42 V	TO-263-7 Thin	125 ¯C	-40 °C	Surface Mount	Positive		TO-263-7 Thin	500 kHz	Automotive	Step-Down		AEC-Q100		4.5 V										27.03 °C/W	5 V
Texas Instruments LM22670TJE-ADJ/NOPB	Buck	3 A	1	42 V	TO-263-7 Thin	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	TO-263-7 Thin	500 kHz		Step-Down	Adjustable		37 V	4.5 V
Texas Instruments LM22670MRE-ADJ/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	8-SO PowerPad	500 kHz		Step-Down	Adjustable		37 V	4.5 V												3.9 mm	0.154 in
Texas Instruments LM22670QTJE-5.0/NOPB	Buck	3 A	1	42 V	TO-263-7 Thin	125 ¯C	-40 °C	Surface Mount	Positive		TO-263-7 Thin	500 kHz	Automotive	Step-Down		AEC-Q100		4.5 V										27.03 °C/W	5 V
Texas Instruments LM22670QMRX-5.0/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive		8-SO PowerPad	500 kHz	Automotive	Step-Down		AEC-Q100		4.5 V										27.03 °C/W	5 V	3.9 mm	0.154 in
Texas Instruments LM22670MR-5.0/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive		8-SO PowerPad	500 kHz		Step-Down				4.5 V										27.03 °C/W	5 V	3.9 mm	0.154 in
Texas Instruments LM22670QMRE-ADJ/NOPB	Buck	3 A	1	42 V	8-PowerSOIC	125 ¯C	-40 °C	Surface Mount	Positive	1.285 V	8-SO PowerPad	500 kHz	Automotive	Step-Down	Adjustable	AEC-Q100	37 V	4.5 V												3.9 mm	0.154 in

Description

General part information

LM22670 Series

The LM22670 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. The default switching frequency is set at 500 kHz allowing for small external components and good transient response. In addition, the frequency can be adjusted over a range of 200 kHz to 1 MHz with a single external resistor. The internal oscillator can be synchronized to a system clock or to the oscillator of another regulator. 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 LM22670 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22670 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.

Documents

Technical documentation and resources

LM22670/-Q1 42-V, 3-A SIMPLE SWITCHER®, Step-Down Voltage Regulator With Features datasheet (Rev. P)

Data sheet

LM22670 Evaluation Board Inverting Topology and Application Notes (Rev. E)

EVM User's guide

SIMPLE SWITCHER® Design Guide

Design guide

LM22670QTJE-ADJ/NOPB

Deep-Dive with AI

LM22670QTJE-ADJ/NOPB

Deep-Dive with AI

Technical Specifications

Pricing

LM22670 Series

Description

LM22670 Series

Documents

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

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

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

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

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

AN-1885 LM22670 Evaluation Board (Rev. D)

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

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

LM22670/-Q1 42-V, 3-A SIMPLE SWITCHER®, Step-Down Voltage Regulator With Features datasheet (Rev. P)

LM22670 Evaluation Board Inverting Topology and Application Notes (Rev. E)

SIMPLE SWITCHER® Design Guide