Union Semiconductor International Limited UM1450S-30
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.64 | $2.64 |
| 15+ | $0.61 | $9.15 |
| 25+ | $0.59 | $14.75 |
| 50+ | $0.56 | $28.00 |
| 100+ | $0.50 | $50.00 |
| N+ | $0.10 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | UM1450 |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.3V @ 150mA |
| Current - Output | 250mA |
| Current - Quiescent (Iq) | 5 µA |
| Current - Supply (Max) | - |
| PSRR | 40dB (100Hz) |
| Control Features | Enable |
| Protection Features | - |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package | SOT-23-3 |
| ROHS |  |
The UM1450S-30 from Union Semiconductor is a precision 3.0V low dropout linear regulator optimized for ultra-low-power and portable applications. Capable of sourcing 250mA, it features an exceptionally low quiescent current of 5 µA, making it an excellent choice for battery-operated devices where power conservation is critical. Its low 0.3V dropout voltage at 150mA ensures efficient operation across a wide battery voltage range. The compact SOT-23-3 package allows for easy integration into space-constrained designs.
- Exceptional Battery Life: 5 µA quiescent current significantly reduces power drain in standby and active modes.
- Efficient Power Conversion: Low 0.3V dropout at 150mA ensures maximum energy utilization from the input source.
- Space-Saving Package: SOT-23-3 footprint is perfect for high-density PCB layouts.
- Reliable 3V Rail: Provides a stable 3.0V supply for a variety of digital and analog ICs.
Digital Cameras & Imaging Sensors
The stable 3.0V rail with 250mA capability is ideal for powering image sensors and their supporting circuitry, ensuring consistent performance.
Bluetooth Low Energy (BLE) Modules
BLE transceivers require a clean 3V supply; the low quiescent current helps maintain long battery life in beacons and smart tags.
Portable Gaming Devices
With 250mA output, it can power a low-power MCU and display driver, while the 5 µA standby current preserves battery during sleep mode.
Wireless Sensor Networks
For nodes powered by coin cells, the low dropout and quiescent current maximize operational lifespan in remote monitoring applications.
Analog Signal Conditioning
The 40dB PSRR at 100Hz reduces mains-frequency noise, making it suitable for precision analog circuits in portable instruments.
Smart Home Sensors
Compact SOT-23-3 package and low power draw make it perfect for door/window sensors and thermostats that run on small batteries.
- Q: What is the output voltage?
- A: The UM1450S-30 provides a fixed 3.0V output.
- Q: What is the maximum output current?
- A: It can deliver up to 250mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly provided; typically it should be above 3.0V plus dropout. Refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.3V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 5 µA.
- Q: What package is this available in?
- A: It is available in the SOT-23-3 package.
UM1450S-30.pdf
- Q: What is the output voltage?
- A: The UM1450S-30 provides a fixed 3.0V output.
- Q: What is the maximum output current?
- A: It can deliver up to 250mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly provided; typically it should be above 3.0V plus dropout. Refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.3V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 5 µA.
- Q: What package is this available in?
- A: It is available in the SOT-23-3 package.
