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Home Products Integrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching Regulators~~LMS3655MQURNLRQ1~~

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LMS3655MQURNLRQ1 - Texas Instruments

Name: Texas Instruments LMS3655MQURNLRQ1
Brand: Texas Instruments
SKU: LMS3655MQURNLRQ1
Availability: InStock
Rating: 5 (4 reviews)

Manufacturer Part Number: LMS3655MQURNLRQ1

Manufacturer: Texas Instruments

Allelco Part Number: 32D-LMS3655MQURNLRQ1

Warranty: 1 Year Allelco Warranty - Find out more

Parts Description: IC REG BUCK ADJ 5.5A 22VQFN

Package: 22-VQFN-HR (5x4)

Data sheet: 1.LMS3655MQURNLRQ.pdf ...

HTML Datasheet
LMS3635-Q1, LMS3655-Q1.pdf

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Specifications

LMS3655MQURNLRQ1 Tech Specifications
Texas Instruments - LMS3655MQURNLRQ1 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LMS3655MQURNLRQ1

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
Voltage - Output (Min/Fixed)	1V
Voltage - Output (Max)	20V
Voltage - Input (Min)	3.9V
Voltage - Input (Max)	36V
Topology	Buck
Synchronous Rectifier	No
Supplier Device Package	22-VQFN-HR (5x4)
Series	Automotive, AEC-Q100
Package / Case	22-VFQFN

Product Attribute	Attribute Value
Package	Tape & Reel (TR)
Output Type	Adjustable
Output Configuration	Positive
Operating Temperature	-40°C ~ 150°C (TJ)
Number of Outputs	1
Mounting Type	Surface Mount, Wettable Flank
Function	Step-Down
Frequency - Switching	400kHz
Current - Output	5.5A

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	Not applicable
Moisture Sensitivity Level (MSL)	2 (1 Year)
ECCN	EAR99
HTSUS	8542.39.0001

Parts Introduction

Manufacturer Part Number

LMS3655MQURNLRQ1

Manufacturer

Texas Instruments

Introduction

Texas Instruments LMS3655MQURNLRQ1 is a high-efficiency, automotive-grade, step-down DC-DC switching regulator.

Product Features and Performance

Step-Down Voltage Regulator

Positive Output Configuration

Buck Topology

Adjustable Output Type

Single Output Channel

Minimum Input Voltage: 3.9V

Maximum Input Voltage: 36V

Adjustable Output Voltage Range: 1V to 20V

Output Current Capacity: 5.5A

Switching Frequency of 400kHz

Non-Synchronous Rectification

Operating Temperature Range from -40°C to 150°C

Designed for Automotive Applications

Qualifies Under AEC-Q100 Standards

Product Advantages

Wide Input Voltage Adaptability

High Output Current Provision

Thermal and Overcurrent Protection

Stable Operation at Extreme Temperatures

Reliable Performance in Automotive Contexts

Enables Compact Circuit Design

Key Technical Parameters

Input Voltage Range: 3.9V to 36V

Output Voltage Range: 1V to 20V

Max Output Current: 5.5A

Switching Frequency: 400kHz

Operating Temperature: -40°C to 150°C

Mounting Type: Surface Mount, Wettable Flank

Package / Case: 22-VFQFN

Device Package: 22-VQFN-HR (5x4)

Quality and Safety Features

Built-in Thermal Shutdown

Overcurrent Protection

Automotive Grade Quality

AEC-Q100 Certified

Compatibility

Suited for a broad range of automotive voltage regulation tasks

Compatible with Low Voltage Automotive Systems

Application Areas

Automotive Electronic Control Units (ECUs)

Powertrain Systems

Infotainment Systems

Advanced Driver-Assistance Systems (ADAS)

Body Electronics

Product Lifecycle

Product Status: Active

Not indicated for Discontinuation

Availability of Replacements or Upgrades: Continuous Improvements Expected

Several Key Reasons to Choose This Product

Robust Performance Spanning Automotive Temperature Range

Compliance with Automotive Industry Standards

Flexibility in Input and Adjustable Output Voltages

High Efficiency to Minimize Power Loss

Reliable Operation Under Dynamic Conditions

Simplifies Compliance with Automotive Electromagnetic Compatibility (EMC) Requirements

Texas Instruments' Reputation for Quality and Support in the Industry

Scalability for Use in Multiple Applications and Systems within the Vehicle

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LMS3655MQURNLRQ1

Product Attribute
Part Number	LMS3655MQRNLRQ1	LMS3655NQURNLRQ1	LMS3655LQRNLRQ1	LMS3655AQRNLRQ1
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Voltage - Output (Max)	-	-	-	-
Voltage - Input (Max)	-	-	-	-
Current - Output	-	-	-	-
Number of Outputs	-	-	-	-
Frequency - Switching	-	-	-	-
Series	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Synchronous Rectifier	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Output Type	-	Current - Unbuffered	Voltage - Buffered	-
Topology	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Function	-	-	-	-
Voltage - Input (Min)	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Output Configuration	-	-	-	-
Voltage - Output (Min/Fixed)	-	-	-	-

LMS3655MQURNLRQ1 Datasheet PDF

Download LMS3655MQURNLRQ1 pdf datasheets and Texas Instruments documentation for LMS3655MQURNLRQ1 - Texas Instruments.

HTML Datasheet: LMS3635-Q1, LMS3655-Q1.pdf

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Customer Reviews

Evaluation: 10 Articles

Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.
Aman***arris

Apr 3, 2026

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.
Mike***nch

Apr 3, 2026

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.
Daic***K.

Mar 23, 2026

Very good. No issue after long time testing.
Kevi***.

Mar 17, 2026

Fast switching and stable output. Very satisfied with this IC
Daou***hekebkeb

Jun 16, 2024

I had a great experience purchasing items from Allelcoelec, I recommend
Uri ***al

Jun 19, 2024

Good comunication,
Transpnt regarding the process and price.
Yaqu***l Ali

Jun 19, 2024

Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.
Lea ***

Jun 19, 2024

Morrey was very helpful and right on top of things!
He replied quickly to my RFQ. He was very courteous and professional.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

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