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AP2138N-3.3TRG1 Breakout
IC REG LINEAR 3.3V 250MA SOT23-3
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Design a Custom BoardAbout This Component
Ultra-low quiescent current CMOS LDO regulator providing fixed 3.3V output at 250mA with 1µA typical standby current. Features ±2% output accuracy, 200mV typical dropout at 100mA, and low 6mV line regulation. Ideal for battery-powered portable devices requiring minimal power consumption.
Package: SOT-23-3 · 3 pins
Why does this need a breakout?
SOT-23's tiny 0.95mm pin pitch and compact form factor make hand-soldering tedious and prone to bridging errors. A breakout board breaks out the three pins to standard 0.1" spacing for breadboard prototyping, eliminating the need for specialized soldering equipment and enabling fast circuit iteration with transistors, diodes, and small-signal components.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Diodes Incorporated |
| Part Number | AP2138N-3.3TRG1 |
| Package | SOT-23-3 |
| Pin Count | 3 |
| Current - Output | 250mA |
| Current - Quiescent (Iq) | 1.5 µA |
| Number of Regulators | 1 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Voltage Dropout (Max) | 0.6V @ 250mA |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 3.3V |
What's Included
BILL OF MATERIALS
- 1x AP2138N-3.3TRG1 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