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LD1085D2M33R Breakout
IC REG LINEAR 3.3V 3A D2PAK-3
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£5.18
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Design a Custom BoardAbout This Component
The LD1085 is a low-dropout linear voltage regulator delivering up to 3A of output current with fixed 3.3V output. Featuring 1.3V typical dropout at full load, ±1% output tolerance at 25°C, and internal thermal protection, it operates across -40°C to 125°C. Ideal for powering microcontrollers, FPGAs, and other low-voltage digital circuits in compact D2PAK packages.
Package: TO-263-2 · 3 pins
Why does this need a breakout?
This SMD package requires a breakout board to interface with breadboards and standard prototyping layouts. The three-pin configuration with large copper pad underneath demands reflow soldering or careful hand-soldering to avoid cold joints, making a breakout board with standard 0.1" headers essential for reliable connections. Ideal for power regulators and MOSFETs where thermal performance and ease of iteration matter.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | STMicroelectronics |
| Part Number | LD1085D2M33R |
| Package | TO-263-2 |
| Pin Count | 3 |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 10 mA |
| Number of Regulators | 1 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Voltage Dropout (Max) | 1.5V @ 3A |
| Voltage - Input (Max) | 30V |
| Voltage - Output (Min/Fixed) | 3.3V |
What's Included
BILL OF MATERIALS
- 1x LD1085D2M33R 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