The ST1S14 is a step down switching regulator from STMicroelectronics. It can deliver up to 3A DC current to the load, and has an operating input voltage range of 5.5V to 48V. It has a switching frequency of 850kHz, and features soft-start, undervoltage lockout, overcurrent protection, and thermal shutdown.
The ST1S14 is a monolithic power switching regulator capable of delivering up to 3 A of DC output current. It features an internally fixed switching frequency of 850 kHz and operates with an input voltage range from 5.5 V to 48 V. The device utilizes an internal N-channel DMOS transistor to minimize external component size and includes features such as internal soft start, current limiting, and thermal shutdown.
| Output current | 3 A |
|---|---|
| Input voltage range | 5.5 V to 48 V |
| Switching frequency | 850 kHz |
| Operating junction temperature | -40 to 150 °C |
| Package | HSOP8 |
The output voltage can be set from 1.22 V.
Yes, the device includes thermal shutdown protection.
The switching frequency is fixed internally at 850 kHz.