XL1509-5.0 DC to DC Buck Switching Regulator IC is a fixed-output step-down switching regulator designed to efficiently convert higher DC input voltages into a regulated 5 V output. It supports an input voltage range of 4.5 V to 40 V and can deliver up to 2 A of output current. With an integrated power switch, fixed 150 kHz switching frequency, current limiting, and thermal shutdown protection, it is suitable for DC-DC power supplies, embedded systems, industrial electronics, and general-purpose voltage conversion applications.
| Parameter | Value |
|---|---|
| Product Type | DC-DC Buck Switching Regulator IC |
| Model | XL1509-5.0 |
| Brand | XLSEMI |
| Output Voltage | 5 V |
| Output Type | Fixed |
| Output Current | Up to 2 A |
| Input Voltage Range | 4.5 V to 40 V |
| Switching Frequency | 150 kHz |
| Topology | Step-Down / Buck |
| Number of Outputs | 1 |
| Power Switch | Integrated |
| Protection | Current Limiting, Thermal Shutdown |
| Operating Temperature | -40°C to +85°C |
| Package | SOIC-8 |
| Mounting Type | Surface Mount |

| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | VIN | Input Supply Voltage |
| 2 | OUTPUT | Switching Output |
| 3 | FB | Feedback Input |
| 4 | ON/OFF | Enable / Shutdown Control |
| 5 | GND | Ground |
| 6 | GND | Ground |
| 7 | GND | Ground |
| 8 | GND | Ground |
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1 × XL1509-5.0 DC to DC Buck Switching Regulator IC - SOIC-8 Package
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