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LD1117S33TR Breakout
IC REG LINEAR 3.3V 800MA SOT-223
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Fixed low-dropout linear voltage regulator delivering 3.3V at up to 800mA output current in space-saving SOT-223 package. Features 1V typical dropout voltage, ±1% output accuracy at 25°C, internal thermal protection, and 75dB supply voltage rejection. Requires only a 10µF bypass capacitor for stability, making it ideal for powering microcontrollers, sensors, and RF modules in battery-powered and portable applications.
Package: SOT-223-3 · 3 pins
Why does this need a breakout?
SOT-223 three-pin regulators and transistors are difficult to hand-solder due to tight 1.5mm pitch and heat-sinking requirements. A breakout board brings standard 0.1" header spacing, eliminating soldering challenges and enabling immediate breadboard prototyping without rework or micro-soldering tools.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | STMicroelectronics |
| Part Number | LD1117S33TR |
| Package | SOT-223-3 |
| Pin Count | 3 |
| Current - Output | 800mA |
| Number of Regulators | 1 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 3.3V |
What's Included
BILL OF MATERIALS
- 1x LD1117S33TR 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