This document describes the features of the XL4001 switch current buck-type DC-DC converter with built-in constant current loop. It has a wide input voltage range of 4.5V to 40V, adjustable output voltage, maximum 2A switch current, and built-in constant current loop.
The XLSEMI XL4001 is a high-efficiency buck-type DC-DC converter featuring a fixed 150KHz switching frequency and a maximum output current of 2A. It operates with a wide input voltage range from 4.5V to 40V and provides an adjustable output voltage from 1.235V to 37V. The device includes a built-in constant current loop, thermal shutdown, current limiting, and over-voltage protection to ensure safe operation in various applications. This manual is written in Chinese.
| Input Voltage Range | 4.5V to 40V |
|---|---|
| Output Voltage Range | 1.235V to 37V |
| Maximum Output Current | 2A |
| Switching Frequency | 150KHz |
| Minimum Voltage Drop | 1.5V |
| Feedback Voltage | 1.235V |
| Package Type | SOP8-EP |
| Operating Junction Temperature | -40 to 125 C |
The feedback reference voltage is 1.235V, detected through an external resistor divider network.
The device operates at a fixed switching frequency of 150KHz.
The XL4001 can provide a maximum output current of 2A.
The device supports an input voltage range from 4.5V to 40V.