The XLSEMI XL7045 is a 0.3 A, 100 kHz, 100 V step‑down DC‑DC converter with adjustable output, high efficiency and built‑in protection features.
The XL7045 is a high‑efficiency, high‑voltage step‑down DC‑DC converter. It supports an input voltage up to 100 V, provides an adjustable output from 1.25 V to 20 V, and delivers up to 0.3 A at 5 V. The device operates at a fixed 100 kHz switching frequency, offers up to 84 % efficiency, and includes over‑temperature shutdown, current‑limit and short‑circuit protection.
Typical applications include power supplies for electric‑vehicle controllers and communication equipment. The part is offered in an SOP8‑EP package (E1 suffix) and complies with RoHS standards. Ordering information, absolute maximum ratings, and detailed electrical characteristics are provided in the datasheet. This manual is written in Chinese.
| Input voltage range | 10‑80 V |
|---|---|
| Maximum input voltage | 100 V |
| Output voltage range | 1.25‑20 V |
| Maximum output current (5 V) | 0.3 A |
| Switching frequency | 100 kHz |
| Efficiency | up to 84 % |
| Package | SOP8‑EP |
| Maximum duty cycle | 100 % |
The device can deliver up to 0.3 A when outputting 5 V.
It includes over‑temperature shutdown, current‑limit, and output short‑circuit protection.