STMicroelectronics, Inc. Voltage Regulators - DC DC Switching Regulators L4973D5.1

"Buck Switching Regulator IC Positive Adjustable (Fixed) 5.1V (5.1V) 1 Output 3.5A 20-SOIC (0.295"", 7.50mm Width)"

IC REG BUCK ADJ/5.1V 3.5A 20SO

3.5A DC/DC Controller, 55V In, 50V Out, 300kHz, SO Product overview: L4973D5.1 from STMicroelectronics is a Voltage Regulator IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 3.5A, 55V, 50V. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, 3.5A, 55V, 50V, Voltage Regulator IC, DC Switching Voltage Regulators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 739-L4973D5.1 can be used for catalog matching and distributor lookup.

Manufacturer: STMicroelectronics
Win Source Part Number: 002282-L4973D5.1
Packaging: Reel - TR
Mounting: SMD (SMT)
Output Type: Adjustable (Fixed)
Topology: Buck
Frequency - Switching: 100kHz to 300kHz
Number of Outputs: 1
Synchronous Rectifier: No
Output Current: 3.5A
Family Name: L4973D5.1
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 150°C (TJ)
Case / Package: 20-SO
Purpose: Step-Down
Maximum Input Voltage: 55V
Nominal Output Voltage (Min/Fixed): 5.1V (5.1V)
Maximum Output Voltage: 50V
Minimum Input Voltage: 8V
Alternative Parts (Cross-Reference): LT3434EFE#TR; LT3434IFE#TR; LT3434IFETR; LT3435EFE#TR;
Introduction Date: September 12, 2001
ECCN: EAR99
Country of Origin: Malaysia
Estimated EOL Date: 2028
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 67 pct.
Supply and Demand Status: Balance