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25+ $0.27 $6.75
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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 4-XDFN Exposed Pad
Supplier Device Package 4-DFN (1x1)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The UM1560DB-28 from Union Semiconductor is a low-dropout linear regulator offering a fixed 2.8V output with up to 300mA of current. Its exceptional 3.5µA quiescent current makes it one of the most power-efficient LDOs in its class, ideal for battery-powered and energy-harvesting applications. The compact 4-DFN (1x1) package is perfect for space-constrained designs.

  • Ultra-Low Power: 3.5µA quiescent current dramatically extends battery life in standby and active modes.
  • High Current Capacity: 300mA output supports demanding loads like wireless transceivers and sensors.
  • Miniature Package: 4-DFN (1x1) is among the smallest LDO packages, ideal for microelectronics.
  • Good Noise Rejection: 56dB~42dB PSRR (100Hz~1kHz) filters low-frequency ripple effectively.

Ultra-Low-Power Wearables

The 3.5µA quiescent current is ideal for smartwatches and fitness bands, enabling months of operation on a coin cell battery.

Energy Harvesting Systems

With 300mA capability and ultra-low IQ, this LDO efficiently manages power from solar or thermal harvesters in remote sensors.

Wireless Sensor Nodes

The 2.8V output and low dropout support LoRa and Zigbee modules, ensuring reliable data transmission in industrial IoT networks.

Portable Medical Devices

Stable 2.8V rail with 56dB PSRR at 100Hz reduces noise for hearing aids and wearable glucose monitors.

Smart Cards and RFID

The tiny 4-DFN (1x1) package and low power consumption make it suitable for contactless payment cards and RFID tags.

Battery-Powered Remote Controls

Ultra-low quiescent current extends shelf life of remote controls while delivering 300mA for IR LED bursts.

Q: What is the output voltage of the UM1560DB-28?
A: The fixed output voltage is 2.8V.
Q: What is the maximum output current?
A: It can deliver up to 300mA.
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: The dropout voltage is 0.3V at 200mA load.
Q: What is the quiescent current?
A: The quiescent current is 3.5µA.
Q: What package is available?
A: It comes in a 4-DFN (1x1) package.
Base Product Number : UM1560DB-28
2.8V 300mA 4-DFN LDO Linear Regulator Ultra-Low Quiescent Current Union Semiconductor
Q: What is the output voltage of the UM1560DB-28?
A: The fixed output voltage is 2.8V.
Q: What is the maximum output current?
A: It can deliver up to 300mA.
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: The dropout voltage is 0.3V at 200mA load.
Q: What is the quiescent current?
A: The quiescent current is 3.5µA.
Q: What package is available?
A: It comes in a 4-DFN (1x1) package.