Union Semiconductor International Limited UM1560S-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 |
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| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | UM1560 |
| 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 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |
The UM1560S-33 is a high-performance low dropout linear regulator from Union Semiconductor, delivering a fixed 3.3V output with up to 300mA of current. Its ultra-low 3.5 µA quiescent current makes it an excellent choice for battery-powered and energy-efficient designs. The device features a low dropout voltage of just 0.3V at 200mA, ensuring efficient operation even with minimal headroom. Housed in a compact SOT-23-5 package, it offers excellent noise rejection with a PSRR of 56dB to 42dB, providing clean and stable power for sensitive electronics.
- Extended Battery Life: Ultra-low 3.5 µA quiescent current minimizes standby power consumption, ideal for portable devices.
- High Efficiency: Low dropout voltage of 0.3V at 200mA allows operation with minimal input-to-output voltage difference, reducing power dissipation.
- Clean Power Delivery: PSRR of 56dB to 42dB effectively filters input noise, ensuring stable output for sensitive analog and RF circuits.
- Compact Footprint: SOT-23-5 package saves valuable PCB space, perfect for space-constrained designs.
Battery-Powered IoT Sensors
The ultra-low 3.5 µA quiescent current significantly extends battery life in always-on IoT sensor nodes, where the regulator maintains a stable 3.3V rail for microcontrollers and sensors.
Portable Medical Devices
With a 300mA output and low dropout of 0.3V, this LDO ensures reliable operation of portable glucose monitors and pulse oximeters, even as the battery voltage declines.
Wearable Electronics
The compact SOT-23-5 package and stable 3.3V output make it ideal for smartwatches and fitness trackers, providing clean power to sensitive analog front-ends.
Wireless Communication Modules
The PSRR of 56dB to 42dB (100Hz to 1kHz) helps filter noise from switching regulators, ensuring clean power for RF transceivers and improving signal integrity.
Industrial Control Systems
This regulator provides a stable 3.3V supply for industrial microcontrollers and digital logic, with the 300mA capability supporting multiple peripheral loads.
Energy Harvesting Systems
The low quiescent current and low dropout voltage make it suitable for energy harvesting applications where input voltage is low and power conservation is critical.
- Q: What is the output voltage of the UM1560S-33?
- A: The UM1560S-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 for exact limits.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at a 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 3.5 µA, making it ideal for battery-powered applications.
- Q: What package is available?
- A: The UM1560S-33 is available in a SOT-23-5 package.
- Q: What is the output voltage of the UM1560S-33?
- A: The UM1560S-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 for exact limits.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at a 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 3.5 µA, making it ideal for battery-powered applications.
- Q: What package is available?
- A: The UM1560S-33 is available in a SOT-23-5 package.

UM1560S-33.pdf