STMicroelectronics · Other integrated circuits
L4973V3.3
IC REG BUCK ADJ/3.3V 3.5A 18DIP
STM32-first sourcing with STMicroelectronics support components. Review recorded cores, flash, RAM, connectivity and package facts before moving an approved design into production.
Request this exact part →
L4973V3.3 specifications
Recorded source facts. Missing values are kept explicit; verify the exact manufacturer document before design approval.
| Manufacturer | STMicroelectronics |
|---|---|
| Ordering code | L4973V3.3 |
| Family | Other integrated circuits |
| Package | 18-DIP (0.300", 7.62mm) |
| Product Status | Obsolete |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable (Fixed) |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 8V |
| Voltage - Input (Max) | 55V |
| Voltage - Output (Min/Fixed) | 0.5V (3.3V) |
| Voltage - Output (Max) | 50V |
| Current - Output | 3.5A |
| Frequency - Switching | 100kHz ~ 300kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Through Hole |
| Package / Case | 18-DIP (0.300", 7.62mm) |
| Supplier Device Package | 18-DIP |
Documents and evidence
L4973V3.3 ↗Before sourcing L4973V3.3
- Identify the firmware and board baseline
- Check flash, RAM and required peripherals
- Review pin assignment and supply limits
- Keep the full temperature and package suffix
Questions about L4973V3.3
How do I request a current price?
Provide this full code, quantity, destination and arrival date. Budget estimates are conditional; final availability and price are confirmed by quotation.
Can a related record replace this device?
Related records aid discovery. Package, pinout, ratings, tooling and software require engineering approval before substitution.
Continue your Other integrated circuits review
74AC00MTR14-SOIC (0.154", 3.90mm Width)
74AC00TTR14-TSSOP (0.173", 4.40mm Width)
74AC02B14-DIP (0.300", 7.62mm)
74AC02MTR14-SOIC (0.154", 3.90mm Width)
74AC02TTR14-TSSOP (0.173", 4.40mm Width)
74AC04MTR14-SOIC (0.154", 3.90mm Width)