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XL1509-3.3
IC REG BUCK 3.3V 2A 150KHZ 8SOIC
UMW
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Design a Custom BoardAbout This Component
Fixed-frequency PWM buck converter rated for 2A continuous output at 3.3V from 4.5V to 40V input. Features 150kHz switching frequency, 100% maximum duty cycle, and 1.5V minimum dropout voltage. Includes integrated thermal shutdown, current limiting, and TTL-compatible enable pin for applications in consumer electronics, networking, and telecom equipment.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | UMW |
| Part Number | XL1509-3.3 |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Current - Output | 3A |
| Frequency - Switching | 150kHz |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Topology | Buck |
| Voltage - Input (Max) | 40V |
| Voltage - Input (Min) | 4.5V |
| Voltage - Output (Min/Fixed) |
What's Included
BILL OF MATERIALS
- 1x XL1509-3.3 soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL