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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) 2.8V
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-82A, SOT-343
Supplier Device Package SOT-343
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The UM1560P-28 is a fixed 2.8V low dropout linear regulator from Union Semiconductor, delivering up to 300mA. Its ultra-low 3.5 µA quiescent current and 0.3V dropout at 200mA make it ideal for battery-powered devices. The SOT-343 package saves board space while providing stable output with 56dB PSRR at 100Hz.

  • Extended Battery Life: Ultra-low 3.5 µA quiescent current minimizes standby power draw, ideal for portable electronics.
  • High Efficiency at Low Dropout: 0.3V dropout at 200mA allows operation close to the output voltage, reducing power dissipation.
  • Compact Footprint: SOT-343 package is ideal for space-constrained designs without sacrificing performance.
  • Clean Output: 56dB to 42dB PSRR (100Hz-1kHz) effectively rejects input noise, ensuring stable voltage for sensitive loads.

Battery-Powered IoT Sensors

The ultra-low 3.5 µA quiescent current extends battery life in always-on IoT sensor nodes, where the 2.8V rail powers microcontrollers and sensors efficiently.

Portable Medical Devices

With a stable 2.8V output and 300mA capability, it suits glucose monitors and wearable health trackers, ensuring reliable operation from a single Li-ion cell.

Wireless Communication Modules

The 56dB to 42dB PSRR (100Hz-1kHz) filters noise from switching regulators, providing a clean supply for RF transceivers and Bluetooth modules.

Industrial Control Interfaces

In 3.3V to 2.8V conversion for logic and sensor interfaces, the low dropout of 0.3V @ 200mA maintains regulation even with supply dips.

Audio Equipment

The low noise and good PSRR make it suitable for powering audio codecs and DACs, minimizing hum and interference in portable audio players.

Wearable Electronics

The SOT-343 package is ideal for space-constrained wearables like smartwatches, providing a compact, efficient 2.8V rail for display and processor.

Q: What is the output voltage of the UM1560P-28?
A: The UM1560P-28 provides a fixed output voltage of 2.8V.
Q: What is the maximum output current?
A: It can deliver up to 300mA of continuous output current.
Q: What is the input voltage range?
A: The input voltage range is not specified in the provided data; refer to the datasheet for absolute maximum ratings.
Q: What is the dropout voltage?
A: The dropout voltage is 0.3V at 200mA load current.
Q: What is the quiescent current?
A: The quiescent current is a low 3.5 µA, ideal for battery-powered applications.
Q: What package is available?
A: The UM1560P-28 is available in the compact SOT-343 package.
Base Product Number : UM1560P
2.8V 300mA LDO Linear Regulator Low Quiescent Current SOT-343 UM1560P Union Semiconductor
Q: What is the output voltage of the UM1560P-28?
A: The UM1560P-28 provides a fixed output voltage of 2.8V.
Q: What is the maximum output current?
A: It can deliver up to 300mA of continuous output current.
Q: What is the input voltage range?
A: The input voltage range is not specified in the provided data; refer to the datasheet for absolute maximum ratings.
Q: What is the dropout voltage?
A: The dropout voltage is 0.3V at 200mA load current.
Q: What is the quiescent current?
A: The quiescent current is a low 3.5 µA, ideal for battery-powered applications.
Q: What package is available?
A: The UM1560P-28 is available in the compact SOT-343 package.