LMS3655MMRNLT

$5.58

Description：IC REG BUCK ADJ 5.5A 22VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:9ac7ea771899 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LMS3655MMRNLT is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BUCK ADJ 5.5A 22VQFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LMS3655MMRNLT

Description：IC REG BUCK ADJ 5.5A 22VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.5V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：1V
Voltage - Output (Max)：15V
Current - Output：5.5A
Frequency - Switching：250kHz ~ 500kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount, Wettable Flank
Package / Case：22-PowerVFQFN
Supplier Device Package：22-VQFN-HR (5x4)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LMS3655MMRNLT

LMS3655MMRNLT

Voltage Regulators - DC DC Switching Regulators Overview

The LMS3655MMRNLT is a synchronous step-down DC-DC converter from Texas Instruments, designed for automotive applications with AEC-Q100 qualification. It features an input voltage range of 3.9 V to 36 V and delivers up to 5.5 A output current. The device operates at a fixed switching frequency of 400 kHz and provides a single adjustable output voltage. Key electrical parameters include a maximum quiescent current of 7.5 uA and a shutdown feature. It is housed in a 22-pin VQFN-HR package, supporting operation temperatures from -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated synchronous rectification for high efficiency across load ranges
Automotive-grade reliability certified under AEC-Q100 standards
Compact thermal performance enabled by VQFN-HR packaging

Voltage Regulators - DC DC Switching Regulators Applications

Automotive infotainment system power distribution
ADAS sensor node power regulation
Body control module DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MM' against the official datasheet to confirm pinout and thermal pad configuration. Ensure the component meets AEC-Q100 Grade requirements for the target automotive environment. Cross-reference the 22-pin VQFN-HR footprint dimensions with the PCB layout guidelines provided in the design documentation to guarantee mechanical compatibility.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 5.5 A buck converter is required for 36V automotive systems. The fixed 400 kHz frequency allows for optimized passive component sizing compared to variable frequency alternatives. Consider the extended temperature range and low static current for applications requiring efficient standby modes in vehicle electronics.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMS3655 series of synchronous step-down converters. The series includes variants such as LMS3655QRNLTQ1, which shares similar electrical characteristics but may differ in packaging or specific automotive grade certifications. The LMS3655 family is designed to replace older linear regulators and non-synchronous buck converters in high-current automotive applications.