Micrel Inc. MIC5255-3.1BM5
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.72 | $0.72 |
| 15+ | $0.17 | $2.55 |
| 25+ | $0.16 | $4.00 |
| 50+ | $0.15 | $7.50 |
| 100+ | $0.14 | $14.00 |
| N+ | $0.03 | 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) | 6V |
| Voltage - Output (Min/Fixed) | 3.1V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.25V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 150 µA |
| Current - Supply (Max) | - |
| PSRR | 60dB ~ 50dB (10Hz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Under Voltage Lockout (UVLO) |
| 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 MIC5255-3.1BM5 is a fixed 3.1V low dropout linear regulator from Micrel, delivering up to 150mA of output current. Housed in a compact SOT-23-5 package, it features a low dropout voltage of 0.25V at full load and a quiescent current of just 150µA, making it well-suited for battery-operated and power-sensitive applications. Its PSRR of 60dB to 50dB across 10Hz to 10kHz ensures clean, stable output for analog and RF circuits.
- Extended Battery Life: Low 150µA quiescent current minimizes standby drain in portable devices.
- Clean Output: 60dB to 50dB PSRR from 10Hz to 10kHz reduces supply noise for sensitive loads.
- Compact Footprint: SOT-23-5 package saves PCB space for space-constrained designs.
- Low Dropout: 0.25V dropout at 150mA allows operation from near-rail input voltages, improving efficiency.
Portable Battery-Powered Devices
The 3.1V fixed output and low 150µA quiescent current make it ideal for extending battery life in handheld instruments, remote controls, and wearable electronics.
Noise-Sensitive Analog Circuits
With PSRR of 60dB to 50dB from 10Hz to 10kHz, this LDO effectively filters power supply noise for precision op-amps, ADCs, and sensor signal conditioning.
Wireless Modules and RF Transceivers
The stable 3.1V rail and good high-frequency ripple rejection support clean power for Bluetooth, Zigbee, and sub-GHz radio modules, reducing spurious emissions.
Microcontroller Power Supply
Provide a regulated 3.1V supply for low-power MCUs, ensuring reliable operation across load transients while maintaining low standby power.
Industrial Sensor Interfaces
The SOT-23-5 package and 150mA capability suit compact industrial transmitters and 4-20mA loop-powered devices requiring a stable local reference.
Automotive Interior Electronics
Although not automotive-qualified, the low dropout and thermal performance support infotainment and dashboard cluster auxiliary rails in controlled environments.
- Q: What is the output voltage of the MIC5255-3.1BM5?
- A: The fixed output voltage is 3.1V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- 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 is 0.25V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
MIC5255-3.1BM5.pdf
- Q: What is the output voltage of the MIC5255-3.1BM5?
- A: The fixed output voltage is 3.1V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- 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 is 0.25V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
