Union Semiconductor International Limited UM1450Y-33
| 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) | 3.3V |
| 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-33 is a fixed 3.3V low dropout regulator from Union Semiconductor, capable of delivering 250mA. It features an ultra-low 5 µA quiescent current and a dropout voltage of 0.3V at 150mA. The SOT-89-3 package provides good thermal performance for industrial and automotive applications.
- Thermally Efficient Package: SOT-89-3 offers superior heat dissipation compared to smaller SOT-23 packages, suitable for higher ambient temperatures.
- Ultra-Low Power Consumption: 5 µA quiescent current extends battery life in standby modes.
- Stable 3.3V Rail: 40dB PSRR at 100Hz ensures reliable operation in noisy industrial environments.
- High Current Capability: 250mA output supports a wide range of digital and analog loads.
Automotive ECU Power Supplies
The SOT-89-3 package offers better thermal dissipation for 250mA loads in engine control units, providing stable 3.3V for microcontrollers.
Industrial Process Controllers
With 5 µA quiescent current, it maintains low standby power in 24/7 industrial monitoring systems while delivering 3.3V logic power.
Smart Home Hubs
Provides clean 3.3V for Zigbee/Wi-Fi modules, with 40dB PSRR at 100Hz reducing mains ripple in wall-powered devices.
Portable Test Equipment
The low dropout of 0.3V allows operation from a 3.6V Li-ion battery down to near-empty, extending measurement uptime.
LED Lighting Controllers
Regulates 3.3V for PWM controllers in LED drivers, ensuring consistent dimming performance despite input variations.
Security Cameras
Powers image sensors and processors with stable 3.3V, while the SOT-89-3 package handles moderate heat in enclosed housings.
- Q: What is the output voltage of the UM1450Y-33?
- A: It provides a fixed 3.3V 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 range is not specified in the provided data; 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: Quiescent current is only 5 µA.
- Q: What package is available?
- A: It is available in the SOT-89-3 package.
UM1450Y-33.pdf
- Q: What is the output voltage of the UM1450Y-33?
- A: It provides a fixed 3.3V 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 range is not specified in the provided data; 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: Quiescent current is only 5 µA.
- Q: What package is available?
- A: It is available in the SOT-89-3 package.
