Key facts
- Brand
- Xlsemi
- Model
- XL4201
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 3
- Languages
- EN · ZH
- Last added
- 2026-10-22
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XLSEMI XL4201 Buck DC/DC Converter Datasheet
The XLSEMI XL4201 is a fixed-frequency PWM buck (step-down) DC/DC converter operating at 150 kHz. It supports an input voltage range of 8V to 40V and provides adjustable output voltages from 1.25V to 37V, with a maximum switching current of 3A. The device includes internal optimization power MOSFETs and requires a minimum number of external components due to built-in frequency compensation.
Read onlineXLSEMI XL4201 specifications
| Input Voltage Range | 8V to 40V |
|---|---|
| Output Adjustable Range | 1.25V to 37V |
| Switching Frequency | 150 KHz |
| Maximum Switching Current | 3A |
| Feedback Voltage Threshold | 1.25V |
All XLSEMI XL4201 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What are the recommended applications for the XL4201?
Recommended applications include Car Charger, Battery Charger, LCD Monitor and LCD TV, Portable instrument power supply, Telecom / Networking Equipment, Buck constant current driver, Monitor LED Backlighting, and General purpose LED lighting.
What is the minimum drop out voltage?
The XL4201 has a minimum drop out of 0.3V.
What is the input voltage range of the XL4201?
The XL4201 operates from 8 V to 40 V input.
What is the switching frequency of the converter?
It uses a fixed 150 kHz switching frequency.
What is the minimum dropout voltage of the XL4201?
The minimum dropout voltage is 0.3V.
Does the XL4201 include a built-in power MOSFET?
Yes, it features an internal power MOS to simplify circuit design.