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LMR43620RQ5EVM-400

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Texas Instruments

LMR43620-Q1 36-V, 2-A SYNCHRONOU

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Development Boards, Kits, Programmers

LMR43620RQ5EVM-400

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Texas Instruments

LMR43620-Q1 36-V, 2-A SYNCHRONOU

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LMR43620RQ5EVM-400

Board Type	Fully Populated
Current - Output	2 A
Frequency - Switching	400 kHz
Main Purpose	DC/DC, Step Down
Outputs and Type	Non-Isolated
Outputs and Type	1
Regulator Topology	Buck
Supplied Contents	Board(s)
Utilized IC / Part	LMR43620-Q1
Voltage - Input [Max]	36 V
Voltage - Input [Min]	3 V
Voltage - Output	5 V

LMR43620-Q1 Series

Automotive, 3-V to 36-V, 2-A low-EMI synchronous buck regulator with low IQ

Part	Voltage - Output (Max) [Max]	Current - Output	Voltage - Input (Min) [Min]	Supplier Device Package	Number of Outputs	Output Configuration	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Output Type	Package / Case	Function	Voltage - Input (Max) [Max]	Frequency - Switching	Mounting Type	Grade	Qualification	Frequency - Switching [Max]	Frequency - Switching [Min]	Voltage - Output (Min/Fixed)	Outputs and Type	Outputs and Type	Main Purpose	Voltage - Input [Min]	Voltage - Input [Max]	Voltage - Output	Supplied Contents	Board Type	Utilized IC / Part	Regulator Topology
Texas Instruments LMR43620MC5RPERQ1	34.2 V	2 A	3 V	9-VQFN-HR (2x2)	1	Positive	5 V	1 V	150 °C	-40 °C	Buck	Adjustable (Fixed)	9-PowerVFQFN	Step-Down	36 V	2.2 MHz	Surface Mount Wettable Flank
Texas Instruments LMR43620RS5QRPERQ1	34.2 V	2 A	3 V	9-VQFN-HR (2x2)	1	Positive	5 V	1 V	150 °C	-40 °C	Buck	Adjustable (Fixed)	9-PowerVFQFN	Step-Down	36 V		Surface Mount Wettable Flank	Automotive	AEC-Q100	2.2 MHz	200 kHz
Texas Instruments LMR43620R5RPER	34.2 V	2 A	3 V	9-VQFN-HR (2x2)	1	Positive	5 V	1 V	150 °C	-40 °C	Buck	Adjustable (Fixed)	9-PowerVFQFN	Step-Down	36 V		Surface Mount Wettable Flank			2.2 MHz	200 kHz
Texas Instruments LMR43620MB5RPER	34.2 V	2 A	3 V	9-VQFN-HR (2x2)	1	Positive	5 V	1 V	150 °C	-40 °C	Buck	Adjustable (Fixed)	9-PowerVFQFN	Step-Down	36 V	1 MHz	Surface Mount Wettable Flank
Texas Instruments LMR43620MSC3RPERQ1	34.2 V	2 A	3 V	9-VQFN-HR (2x2)	1	Positive	1 V		150 °C	-40 °C	Buck	Adjustable (Fixed)	9-PowerVFQFN	Step-Down	36 V	2.2 MHz	Surface Mount Wettable Flank	Automotive	AEC-Q100			3.3 V
Texas Instruments LMR43620RQ5EVM-400		2 A														400 kHz							Non-Isolated	1	DC/DC Step Down	3 V	36 V	5 V	Board(s)	Fully Populated	LMR43620-Q1	Buck
Texas Instruments LMR43620MQ3EVM-2M		2 A														2.2 MHz							Non-Isolated	1	DC/DC Step Down	3 V	36 V	3.3 V	Board(s)	Fully Populated	LMR43620-Q1	Buck

Pricing

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

Distributor	Package	Quantity	$

Digikey	Box	1	$ 135.59
		10	$ 129.18
		25	$ 126.43

Description

General part information

LMR43620-Q1 Series

The LMR436x0-Q1 is the industry smallest 36V, 2A, and 1A synchronous step-down DC/DC converters in a 2mm × 2mm HotRod package. This easy-to-use converter supports a wide input voltage range of 3.0V to 36V with transients up to 42V.

The LMR43620-Q1 is specifically designed to meet low standby power requirements for always on, automotive applications. Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of 1.5µA at 13.5VIN and high light load efficiency. A seamless transition between PWM and PFM modes along with very low MOSFET ON resistances provide exceptional efficiency across the entire load range.

The control architecture and feature set are designed for an ultra-small design size. The device uses peak current mode control to minimize output capacitance. The LMR436x0-Q1 minimizes input filter size by using dual random spread spectrum, a low-EMI HotRod package, and an optimized pinout. The MODE/SYNC and RT pin variants can be used to set or synchronize the frequency between 200kHz and 2.2MHz to avoid noise sensitive frequency bands.

Documents

Technical documentation and resources