Union Semiconductor International Limited UM1450Y-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 | - |
| Protection Features | - |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-243AA |
| Supplier Device Package | SOT-89-3 |
| ROHS |
The UM1450Y-30 is a fixed 3V linear regulator from Union Semiconductor, delivering up to 250mA output current. With an ultra-low quiescent current of 5µA and dropout of 0.3V at 150mA, it is optimized for battery-powered applications. The SOT-89-3 package offers a compact solution for space-limited designs. Its 40dB PSRR at 100Hz provides basic noise filtering for stable operation.
- Ultra-low quiescent current: 5µA significantly extends battery life in portable devices.
- Low dropout: 0.3V at 150mA ensures efficient operation with minimal voltage loss.
- Compact SOT-89-3 package: Ideal for miniaturized electronic designs.
- High output current: 250mA supports a variety of low-power peripherals.
Battery-Powered IoT Devices
Ultra-low 5µA quiescent current makes it ideal for always-on sensors and smart tags.
Portable Consumer Electronics
Provides stable 3V for remote controls and calculators, with low dropout for battery efficiency.
Wearable Fitness Trackers
Compact SOT-89-3 package fits small PCBs, delivering reliable power for activity monitoring.
Wireless Keyboards
Regulates 3V for RF transceivers, ensuring consistent performance with minimal power drain.
Smart Meters
Powers 3V logic in utility meters, with 40dB PSRR at 100Hz filtering line noise.
Portable Medical Monitors
Provides clean 3V supply for heart rate monitors, with low quiescent current for long battery life.
- Q: What is the output voltage of the UM1450Y-30?
- A: It provides a fixed 3V output.
- Q: What is the maximum output current?
- A: The maximum output current is 250mA.
- Q: What is the input voltage range?
- A: The input voltage is 3V (requires input above 3.3V for regulation).
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 5 µA.
- Q: What package is available?
- A: It comes in a SOT-89-3 package.
- Q: What is the output voltage of the UM1450Y-30?
- A: It provides a fixed 3V output.
- Q: What is the maximum output current?
- A: The maximum output current is 250mA.
- Q: What is the input voltage range?
- A: The input voltage is 3V (requires input above 3.3V for regulation).
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 5 µA.
- Q: What package is available?
- A: It comes in a SOT-89-3 package.

UM1450Y-30.pdf