Micrel Inc. MIC5219-2.5BM5
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.41 | $0.41 |
| 15+ | $0.40 | $6.00 |
| 25+ | $0.39 | $9.75 |
| 50+ | $0.37 | $18.50 |
| 100+ | $0.32 | $32.00 |
| N+ | $0.06 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Micrel Inc. |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 12V |
| Voltage - Output (Min/Fixed) | 2.5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.6V @ 500mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 8 µA |
| Current - Supply (Max) | - |
| PSRR | 75dB (120Hz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Reverse Polarity |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
The MIC5219-2.5BM5 is a fixed 2.5V low dropout linear regulator capable of delivering 500mA. Its ultra-low 8 µA quiescent current makes it ideal for battery-powered applications. The SOT-23-5 package offers a compact solution for space-constrained designs. With a dropout voltage of just 0.6V at full load and 75dB PSRR at 120Hz, it ensures clean, stable power for sensitive electronics.
- Extended Battery Life: Ultra-low 8 µA quiescent current minimizes standby power draw, ideal for portable devices.
- High Efficiency at Low Dropout: 0.6V dropout at 500mA allows operation close to the battery's end-of-life voltage, maximizing usable capacity.
- Clean Output: 75dB PSRR at 120Hz effectively filters ripple from switching supplies, ensuring stable analog performance.
- Compact Footprint: SOT-23-5 package saves PCB space for miniaturized designs.
Battery-Powered IoT Sensors
The 8 µA quiescent current extends battery life in always-on sensor nodes, while the 2.5V output suits low-power MCUs and RF transceivers.
Portable Medical Devices
Stable 2.5V rail with 75dB PSRR at 120Hz reduces noise from switching regulators, critical for sensitive analog front-ends in glucose monitors or pulse oximeters.
Wireless Communication Modules
500mA capability supports peak currents of Wi-Fi/Bluetooth modules during transmission, and the low dropout maintains regulation as the battery discharges.
Automotive Interior Lighting
With a wide input range (check datasheet) and SOT-23-5 footprint, it can power LED drivers or logic rails in dashboards and infotainment systems.
Industrial Control Interfaces
The low dropout and thermal protection make it suitable for powering RS-485 transceivers or isolated CAN bus controllers in factory automation.
Audio Equipment Bias Supplies
75dB PSRR at 120Hz minimizes hum from mains-derived supplies, providing a clean 2.5V reference for op-amp biasing in portable audio gear.
- Q: What is the output voltage of the MIC5219-2.5BM5?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.6V at 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 8 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
- Q: What is the output voltage of the MIC5219-2.5BM5?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.6V at 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 8 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.

MIC5219-2.5BM5.pdf