Micrel Inc. MIC5205-1.88BM5TR
| 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) | 1.8V |
| 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 MIC5205-1.88BM5TR is a precision low dropout regulator providing a fixed 1.8V output. It supports up to 150mA of load current with a low 0.35V dropout, making it efficient for battery-powered devices. The 150µA quiescent current and 75dB PSRR at 100Hz ensure minimal power loss and excellent noise suppression. Packaged in a compact SOT-23-5, it is designed for space-constrained, power-sensitive applications.
- Optimal for Low-Voltage Cores: Fixed 1.8V output matches modern digital IC requirements, simplifying power design.
- Low Power Consumption: 150µA quiescent current extends battery life in always-on applications.
- Excellent Noise Rejection: 75dB PSRR at 100Hz ensures clean supply for RF and analog circuits.
- Space-Saving Design: SOT-23-5 package is ideal for miniaturized PCBs in wearables and IoT devices.
FPGA and DSP Core Power
Modern FPGAs and DSPs often require a 1.8V core supply. The MIC5205-1.88BM5TR delivers 150mA with low dropout, ensuring stable operation during high-speed processing.
Portable Medical Devices
For glucose monitors and hearing aids, the low 150µA quiescent current and 1.8V output help extend battery life while maintaining clean power for sensitive analog front-ends.
Wireless IoT Modules
Low-power MCUs and RF transceivers in IoT nodes benefit from the 1.8V rail, with 75dB PSRR at 100Hz reducing interference from switching regulators.
Memory and Logic Supplies
DDR memory termination and low-voltage logic families (e.g., LVCMOS18) can be powered efficiently, with the SOT-23-5 package fitting tight layouts.
Battery Management Systems
In BMS for single-cell Li-ion packs, this LDO provides a stable 1.8V reference for monitoring ICs, ensuring accurate voltage and current sensing.
- Q: What is the output voltage of the MIC5205-1.88BM5TR?
- A: The fixed output voltage is 1.8V.
- 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 is 1.8V (typical operating point; refer to datasheet for full range).
- Q: What is the dropout voltage?
- A: Dropout is 0.35V at 150mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
- Q: What is the output voltage of the MIC5205-1.88BM5TR?
- A: The fixed output voltage is 1.8V.
- 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 is 1.8V (typical operating point; refer to datasheet for full range).
- Q: What is the dropout voltage?
- A: Dropout is 0.35V at 150mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.

MIC5205-1.88BM5TR.pdf