LMS3655NQRNLRQ1 - Texas Instruments

Manufacturer Part Number

LMS3655NQRNLRQ1

Manufacturer

Texas Instruments

Introduction

The LMS3655NQRNLRQ1 is a highly efficient, automotive-grade step-down voltage regulator.

Product Features and Performance

Automotive-grade step-down (buck) voltage regulator

Fixed output voltage configuration of 3.3V

High-efficiency power conversion

Operates within a wide input voltage range from 3.9V to 36V

Supports a maximum output current of 5.5A

Switching frequency is adjustable between 250kHz and 500kHz

Capable of operating within a temperature range of -40°C to 125°C

Surface Mount, Wettable Flank technology for confident PCB mounting

Product Advantages

Designed for automotive applications, meeting stringent quality standards

Solid performance within a wide range of input voltages

Increased power density due to compact 22-VFQFN package

Potential for reduced electromagnetic interference with adjustable switching frequency

Key Technical Parameters

Input Voltage (Min): 3.9V

Input Voltage (Max): 36V

Output Voltage (Min/Fixed): 3.3V

Current - Output: 5.5A

Frequency - Switching: 250kHz to 500kHz

Operating Temperature Range: -40°C to 125°C

Quality and Safety Features

Qualifies under AEC-Q100 standards for automotive reliability

Over-temperature and over-current protection for safe operation

Compatibility

22-VFQFN-HR (5x4) package is compatible with standard SMT processes

Non-synchronous rectifier design can be paired with external diodes for flexibility

Application Areas

Automotive electronics

Power supplies for industrial and telecommunications

Infotainment systems

Advanced driver-assistance systems (ADAS)

Product Lifecycle

Product Status: Active

No near-term discontinuation, with ongoing support and production

Several Key Reasons to Choose This Product

Optimal solution for automotive applications requiring a robust voltage supply

Flexible usage across a wide voltage range to accommodate various designs

Efficient power conversion that translates to energy savings

High reliability backed by AEC-Q100 qualification

Ease of manufacturing with industry-standard QFN packaging

Adjustable switching frequency to tailor performance for specific applications