Union Semiconductor International Limited UM1550S-33
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.04 | $1.04 |
| 15+ | $0.24 | $3.60 |
| 25+ | $0.23 | $5.75 |
| 50+ | $0.22 | $11.00 |
| 100+ | $0.20 | $20.00 |
| N+ | $0.04 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | UM1550 |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 8V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.3V @ 200mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 3.5 µA |
| Current - Supply (Max) | - |
| PSRR | 56dB ~ 42dB (100Hz ~ 1kHz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package | SOT-23-3 |
| ROHS |  |
The UM1550S-33 is a low dropout linear regulator from Union Semiconductor, providing a fixed 3.3V output with up to 300mA current. Its standout feature is an ultra-low quiescent current of just 3.5 µA, making it exceptional for battery-powered and energy-harvesting applications. The SOT-23-3 package offers a compact, cost-effective solution for space-constrained designs.
- Ultra-Low Quiescent Current: 3.5 µA dramatically extends battery life in standby mode.
- High Efficiency: Low dropout of 0.3V at 200mA maximizes power conversion efficiency.
- Compact Package: SOT-23-3 package is ideal for space-constrained PCB layouts.
- Good Noise Rejection: PSRR of 56dB at 100Hz provides clean output for sensitive circuits.
Battery-Powered IoT Sensors
The ultra-low 3.5 µA quiescent current makes the UM1550S-33 ideal for battery-powered IoT sensors that require long standby times.
Energy Harvesting Systems
Its minimal current draw is perfect for energy harvesting applications where power is scarce and must be conserved.
Portable Medical Devices
The stable 3.3V output and low dropout voltage ensure reliable operation in battery-powered medical devices like glucose monitors.
Smart Home Devices
Ideal for smart thermostats, door sensors, and other home automation devices that need efficient power management.
Wearable Electronics
With its compact SOT-23-3 package and low power consumption, it's perfect for fitness trackers and smart watches.
- Q: What is the output voltage of the UM1550S-33?
- A: The UM1550S-33 provides a fixed output voltage of 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 3.5 µA.
- Q: What package is available?
- A: The UM1550S-33 is available in the SOT-23-3 package.
UM1550S-33.pdf
- Q: What is the output voltage of the UM1550S-33?
- A: The UM1550S-33 provides a fixed output voltage of 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 3.5 µA.
- Q: What package is available?
- A: The UM1550S-33 is available in the SOT-23-3 package.
