The document introduces the features and applications of a 150KHz 40V 2A switching current buck-type DC-DC converter XL1509. The converter has a wide input voltage range, fixed adjustable output voltage, maximum 2A switching current, high efficiency, and excellent linearity and load adjustment rate.
The XLSEMI XL1509 is a high-efficiency buck-type DC-DC converter featuring a fixed 150KHz switching frequency and a maximum output current of 2A. It supports a wide input voltage range from 4.5V to 40V and offers both fixed output voltages (3.3V, 5V, 12V) and an adjustable output voltage (ADJ) ranging from 1.23V to 37V. The device includes built-in features such as a power transistor, thermal shutdown, current limiting, and secondary current limiting to ensure reliable operation. This manual is written in Chinese.
| Input Voltage Range | 4.5V to 40V |
|---|---|
| Switching Frequency | 150KHz |
| Maximum Output Current | 2A |
| Output Voltage (Fixed) | 3.3V, 5V, 12V |
| Output Voltage (Adjustable) | 1.23V to 37V |
| Package Type | SOP8 |
| Operating Junction Temperature | -40 to 125 C |
The XL1509 has a fixed switching frequency of 150KHz.
The device provides fixed output voltages of 3.3V, 5V, and 12V.
The XL1509 can provide a maximum output current of 2A.
Yes, the device includes built-in thermal shutdown functionality.