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LP2981A-33DBVR Breakout
IC REG LINEAR 3.3V 100MA SOT23-5
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Low-dropout linear voltage regulator producing a fixed 3.3V output with 100mA maximum load current. Features micropower design suitable for battery-powered applications and includes reverse battery protection. Ideal for low-power digital circuits, sensor nodes, and embedded systems requiring stable 3.3V supply from higher input voltage sources.
Package: SOT-23-5 · 5 pins
Why does this need a breakout?
This 0.95 mm pitch SMD package is incompatible with breadboards and difficult to hand-solder. A breakout board brings the five pins to standard 0.1″ spacing, enabling rapid prototyping without reflow equipment. Essential for evaluating precision analog ICs like current-sense amplifiers in development circuits.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | LP2981A-33DBVR |
| Package | SOT-23-5 |
| Pin Count | 5 |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 95 µA |
| Current - Supply (Max) | 1.7 mA |
| Number of Regulators | 1 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Voltage Dropout (Max) | 0.37V @ 100mA |
| Voltage - Input (Max) | 16V |
What's Included
BILL OF MATERIALS
- 1x LP2981A-33DBVR 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