L4974A
IC REG BUCK ADJ 3.5A 20DIPManufacturer: STMicroelectronics
Categories: DC DC Switching Regulators
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The STMicroelectronics L4974A is a high-efficiency buck switching regulator designed for robust power conversion applications. This adjustable positive output device operates with an input voltage range of 15V to 50V and delivers a maximum output current of 3.5A. Featuring an internal switch and a switching frequency between 100kHz and 200kHz, the L4974A simplifies circuit design by integrating essential control functions. Its 20-DIP (0.300", 7.62mm) package facilitates through-hole mounting for various industrial and automotive power supply designs. The output voltage is adjustable, with a nominal 5.1V minimum fixed output. Applications include power supplies for telecommunications, industrial control systems, and automotive electronics where efficient voltage regulation is critical.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 20-DIP (0.300"", 7.62mm) |
| Output Type | Adjustable |
| Mounting Type | Through Hole |
| Number of Outputs | 1 |
| Function | Step-Down |
| Current - Output | 3.5A |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Output Configuration | Positive |
| Frequency - Switching | 100kHz ~ 200kHz |
| Voltage - Input (Max) | 50V |
| Topology | Buck |
| Supplier Device Package | 20-PowerDIP |
| Synchronous Rectifier | No |
| Voltage - Output (Max) | 40V |
| Voltage - Input (Min) | 15V |
| Voltage - Output (Min/Fixed) | 5.1V |
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