LMS3655NQRNLTQ1

$6.33

Description：IC REG BUCK 3.3V 5.5A 22VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:fab28506c896 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LMS3655NQRNLTQ1 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 3.3V 5.5A 22VQFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LMS3655NQRNLTQ1

Description：IC REG BUCK 3.3V 5.5A 22VQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：3.9V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
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：Automotive
Qualification：AEC-Q100

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LMS3655NQRNLTQ1

LMS3655NQRNLTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMS3655NQRNLTQ1 is a synchronous step-down DC-DC converter from Texas Instruments, designed for automotive applications with AEC-Q100 qualification. It operates within an input voltage range of 3.9 V to 36 V and delivers a fixed output of 5 V at up to 5.5 A. The device features a 400 kHz switching frequency and a low quiescent current of 7.5 uA. Packaged in a 22-pin VQFN-HR (4x5 mm) format, it supports operation temperatures from -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Synchronous buck topology for high efficiency
Automotive-grade reliability under AEC-Q100 standards
Integrated shutdown control for power management
Compact VQFN-HR package with wettable flanks

Voltage Regulators - DC DC Switching Regulators Applications

Automotive infotainment systems
Telematics control units
Body electronics power distribution
ADAS sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'N' indicates the specific fixed 5V output variant. Confirm the 'Q1' designation aligns with automotive AEC-Q100 requirements. Ensure the 'L' suffix matches the reel packaging specification. Cross-reference the full part number against the official TI datasheet to validate pinout and thermal pad configuration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V rail is required for automotive loads. The 5.5A output capability suits moderate power applications. Consider the 400kHz frequency for balancing size and efficiency. Verify input voltage stability within the 3.9V to 36V window. Evaluate thermal performance in the VQFN-HR package for the target environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMS3655-Q1 family of synchronous step-down converters. It shares architectural similarities with other members like the LMS3635 series but differs in output current and frequency specifications. The family targets robust automotive power management needs with integrated protection features.