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Home Products Integrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching Regulators~~LMR36503MSC5RPERQ1~~

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LMR36503MSC5RPERQ1 - Texas Instruments

Name: Texas Instruments LMR36503MSC5RPERQ1
Brand: Texas Instruments
SKU: LMR36503MSC5RPERQ1
Availability: InStock
Rating: 5 (4 reviews)

Manufacturer Part Number: LMR36503MSC5RPERQ1

Manufacturer: Texas Instruments

Allelco Part Number: 32D-LMR36503MSC5RPERQ1

Warranty: 1 Year Allelco Warranty - Find out more

Parts Description: AUTOMOTIVE 3-V TO 65-V, 0.3-A BU

Package: 9-VQFN-HR (2x2)

Data sheet: 1.LMR36503MSC5RPE.pdf ...

HTML Datasheet
LMR36503-Q1.pdf

RoHs Status: ROHS3 Compliant

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Specifications

LMR36503MSC5RPERQ1 Tech Specifications
Texas Instruments - LMR36503MSC5RPERQ1 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LMR36503MSC5RPERQ1

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
Voltage - Output (Min/Fixed)	5V
Voltage - Output (Max)	-
Voltage - Input (Min)	3V
Voltage - Input (Max)	65V
Topology	Buck
Synchronous Rectifier	Yes
Supplier Device Package	9-VQFN-HR (2x2)
Series	Automotive, AEC-Q100
Package / Case	9-VFQFN

Product Attribute	Attribute Value
Package	Tape & Reel (TR)
Output Type	Fixed
Output Configuration	Positive
Operating Temperature	-40°C ~ 125°C (TA)
Number of Outputs	1
Mounting Type	Surface Mount, Wettable Flank
Function	Step-Down
Frequency - Switching	2.2MHz
Current - Output	300mA
Base Product Number	LMR36503

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2 (1 Year)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Parts Introduction

Manufacturer Part Number

LMR36503MSC5RPERQ1

Manufacturer

Texas Instruments

Introduction

Automotive, step-down DC/DC converter

Product Features and Performance

High-efficiency buck regulator

Input voltage range: 3V to 65V

Fixed 5V output voltage

300mA output current

2MHz switching frequency

Synchronous rectification for improved efficiency

Temperature range: -40°C to 125°C

Compatible with automotive applications

Surface mount package with wettable flanks

AEC-Q100 qualified

Product Advantages

Wide input voltage range suitable for various applications

High-frequency operation allows the use of small external components

Fixed output simplifies design

Thermal performance suitable for harsh environments

Synchronous rectification for higher efficiency

Key Technical Parameters

Number of Outputs: 1

Topology: Buck

Output Type: Fixed

Frequency - Switching: 2.2MHz

Voltage - Input (Min): 3V

Voltage - Input (Max): 65V

Voltage - Output (Min/Fixed): 5V

Current - Output: 300mA

Quality and Safety Features

Operational temperature range: -40°C to 125°C

Qualification: AEC-Q100 for reliable automotive use

Over-temperature and over-current protection

Compatibility

Surface Mount, Wettable Flank for improved solderability and inspection

Grade: Automotive

Package / Case: 9-VFQFN

Application Areas

Automotive electronics

Industrial applications

Power conditioning

Battery-powered devices

Consumer electronics

Product Lifecycle

Status: Active

Not nearing discontinuation

Replacements or upgrades likely available due to active status

Several Key Reasons to Choose This Product

Highly efficient power conversion extends battery life

Reduces thermal footprint with integrated synchronous rectifier

Versatile wide input voltage range accommodates diverse power sources

Compact size 9-VQFN-HR (2x2) package saves PCB space

Designed for robust automotive applications, ensuring reliability in a vehicle environment

High switching frequency allows for small external components, minimizing design footprint

AEC-Q100 qualification guarantees automotive industry standards compliance

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LMR36503MSC5RPERQ1

Product Attribute
Part Number	LMR36503MSC3RPERQ1	LMR36506MSC5RPERQ1	LMR36503R5URPER	LMR36503R5RPER
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Voltage - Input (Min)	-	-	-	-
Frequency - Switching	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Output Type	-	Current - Unbuffered	Voltage - Buffered	-
Current - Output	-	-	-	-
Synchronous Rectifier	-	-	-	-
Output Configuration	-	-	-	-
Voltage - Input (Max)	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Function	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Number of Outputs	-	-	-	-
Voltage - Output (Max)	-	-	-	-
Series	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Topology	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Voltage - Output (Min/Fixed)	-	-	-	-

LMR36503MSC5RPERQ1 Datasheet PDF

Download LMR36503MSC5RPERQ1 pdf datasheets and Texas Instruments documentation for LMR36503MSC5RPERQ1 - Texas Instruments.

HTML Datasheet: LMR36503-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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