STMicroelectronics20-DIP (0.300", 7.62mm)RoHS
L4974A
IC REG BUCK ADJ 3.5A 20DIP
Category
Subcategory
Pmic Voltage Regulators Dc Dc Switching Regulators
Package
20-DIP (0.300", 7.62mm)
Status
Active
$11.53 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | STMicroelectronics |
| Model | L4974A |
| Package / Case | 20-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Topology | Buck |
| Voltage - Input (Min) | 15V |
| Voltage - Input (Max) | 50V |
| Voltage - Output | 5.1V |
| Current - Output | 3.5A |
| Frequency - Switching | 100kHz ~ 200kHz |
| Number of Outputs | 1 |
| Supplier Device Package | 20-PowerDIP |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
L4974A by STMicroelectronics is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 50V, output 5.1V. The 20-DIP (0.300", 7.62mm) package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
You may also need
All Technical Specifications
| Function | Step-Down |
| Topology | Buck |
| Output Type | Adjustable |
| Current - Output | 3.5A |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 100kHz ~ 200kHz |
| Synchronous Rectifier | No |
| Voltage - Input (Max) | 50V |
| Voltage - Input (Min) | 15V |
| Voltage - Output (Max) | 40V |
| Voltage - Output (Min/Fixed) | 5.1V |
Request a Quote
Submit your quantity and details — we will reply within 24 hours.