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LDL1117S33R
IC REG LINEAR 3.3V 1.2A SOT-223
STMicroelectronics
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Design a Custom BoardAbout This Component
Low-dropout linear voltage regulator providing 1.2A output current with 3.3V fixed output. Features 2.5V to 18V input range, 350mV typical dropout at full load, and high PSRR of 87dB at 120Hz. Includes thermal, current, and power limiting protection; suitable for SMPS post-regulation and point-of-load 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.
Specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | STMicroelectronics |
| Part Number | LDL1117S33R |
| Package | SOT-223-3 |
| Pin Count | 3 |
| Current - Output | 1.2A |
| Number of Regulators | 1 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Voltage - Input (Max) | 18V |
| Voltage - Output (Min/Fixed) | 3.3V |
What's Included
BILL OF MATERIALS
- 1x LDL1117S33R 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