Micrel Inc. MIC5205-2.9BM5
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.64 | $0.64 |
| 15+ | $0.15 | $2.25 |
| 25+ | $0.14 | $3.50 |
| 50+ | $0.14 | $7.00 |
| 100+ | $0.12 | $12.00 |
| N+ | $0.02 | 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) | 16V |
| Voltage - Output (Min/Fixed) | 2.9V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.35V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 150 µA |
| Current - Supply (Max) | 2.5 mA |
| PSRR | 75dB (100Hz) |
| 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 MIC5205-2.9BM5 from Micrel is a fixed 2.9V low dropout linear regulator capable of delivering 150mA. It features a low dropout voltage of 0.35V at full load and a quiescent current of 150 µA. With 75dB PSRR at 100Hz, it provides excellent ripple rejection. The compact SOT-23-5 package makes it ideal for space-constrained portable applications.
- High Ripple Rejection: 75dB PSRR at 100Hz ensures clean power for audio and precision analog circuits.
- Low Dropout: 0.35V dropout at 150mA allows efficient operation from lower input voltages.
- Moderate Current Capacity: 150mA output supports a wide range of low-power peripherals.
- Compact SOT-23-5: Small footprint suitable for miniaturized PCB designs.
Portable Audio Equipment
The MIC5205-2.9BM5's 75dB PSRR at 100Hz effectively suppresses mains hum and ripple, delivering clean 2.9V power to audio codecs and headphone amplifiers.
Battery-Powered IoT Sensors
With 150mA output and low 150 µA quiescent current, this LDO powers wireless sensor nodes, ensuring efficient operation during both active and sleep modes.
Automotive Interior Electronics
The low dropout of 0.35V at 150mA allows regulation from a 3.3V rail, making it suitable for infotainment and dashboard modules requiring stable 2.9V.
Medical Monitoring Devices
Stable 2.9V output with high PSRR supports precision biosignal amplifiers, reducing noise interference in ECG and pulse oximeter circuits.
FPGA and DSP Core Supplies
For low-power FPGAs requiring 2.9V core voltage, the MIC5205-2.9BM5 provides reliable regulation with minimal voltage drop from a 3.3V source.
- Q: What is the output voltage of the MIC5205-2.9BM5?
- A: The fixed output voltage is 2.9V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA of output current.
- 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: Dropout voltage is 0.35V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
- Q: What is the output voltage of the MIC5205-2.9BM5?
- A: The fixed output voltage is 2.9V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA of output current.
- 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: Dropout voltage is 0.35V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.

MIC5205-2.9BM5.pdf