Manufacturer Part Number
LMS36553QRNLRQ1
Manufacturer
Texas Instruments
Introduction
Automotive Grade Step-Down Voltage Regulator
Product Features and Performance
Buck topology
Fixed 3.3V output voltage
Single output design
9V to 36V input voltage range
5A current output
Frequency switching between 250kHz and 500kHz
Supports surface mount technology
Automotive operating temperature range from -40°C to 125°C
Non-synchronous rectifier
Product Advantages
High input voltage range compatibility
Robust thermal performance for automotive applications
Space-saving 22-VFQFN package with wettable flanks for inspection ease
Key Technical Parameters
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
Current - Output: 5.5A
Frequency - Switching: 250kHz ~ 500kHz
Operating Temperature: -40°C ~ 125°C (TA)
Quality and Safety Features
AEC-Q100 qualification for automotive standards
Robust design for extended temperature ranges
Compatibility
Compatible with systems requiring a 3.3V fixed output from varying input voltages
22-VQFN-HR package compatible with surface mount processes
Application Areas
Automotive electronics
Power management solutions
Industrial power supplies
Consumer electronics
Product Lifecycle
Status: Active
Not indicated as nearing discontinuation
Availability of replacements or upgrades not specified
Several Key Reasons to Choose This Product
Optimized for automotive applications with AEC-Q100 qualification
Supports wide range of input voltage suitable for diverse power systems
Reliable performance in extended temperature extremes
Compact surface mount 22-VFQFN package with wettable flanks improves PCB inspection process
Ease of integration with fixed voltage output and standard buck configuration