Union Semiconductor International Limited UM1530DB-27
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.20 | $1.20 |
| 15+ | $0.28 | $4.20 |
| 25+ | $0.27 | $6.75 |
| 50+ | $0.26 | $13.00 |
| 100+ | $0.23 | $23.00 |
| N+ | $0.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | UM1530 |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 2.7V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.33V @ 200mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 1.5 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 |
The UM1530DB-27 is a 300mA low dropout linear regulator from Union Semiconductor, delivering a fixed 2.7V output. Its ultra-low 1.5µA quiescent current and 0.33V dropout at 200mA make it ideal for battery-powered applications. Housed in a compact 4-DFN (1x1mm) package, it offers excellent PSRR of 56dB at 100Hz for noise-sensitive designs.
- Extended Battery Life: 1.5µA quiescent current minimizes standby drain.
- Space-Saving Design: 4-DFN (1x1mm) package fits ultra-compact PCBs.
- Stable Output: 0.33V dropout at 200mA ensures regulation near end-of-battery life.
- Noise Rejection: 56dB PSRR at 100Hz filters power-line hum.
Battery-Powered IoT Sensors
The 1.5µA quiescent current and 2.7V fixed output make it ideal for always-on sensor nodes, extending battery life significantly.
Wearable Devices
The compact 4-DFN (1x1mm) package fits tight PCB constraints in smartwatches and fitness bands while providing stable 2.7V rail.
Portable Medical Monitors
Low dropout of 0.33V ensures regulation even as battery voltage sags, maintaining reliable operation for glucose meters and pulse oximeters.
Wireless Modules
PSRR of 56dB at 100Hz filters low-frequency noise, improving RF performance in Bluetooth and Zigbee modules.
Energy Harvesting Systems
With 300mA capability and low quiescent draw, it efficiently regulates harvested energy from solar or thermal sources.
Embedded MCU Power Rails
Provides clean 2.7V supply for low-power microcontrollers, reducing noise-induced errors in ADC readings.
- Q: What is the output voltage of the UM1530DB-27?
- A: The fixed output voltage is 2.7V.
- 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 is 2.7V (typical operating condition).
- Q: What is the dropout voltage?
- A: Dropout is 0.33V at 200mA load.
- Q: What is the quiescent current?
- A: Ultra-low quiescent current of 1.5µA.
- Q: What package is available?
- A: 4-DFN (1x1mm) package.
- Q: What is the output voltage of the UM1530DB-27?
- A: The fixed output voltage is 2.7V.
- 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 is 2.7V (typical operating condition).
- Q: What is the dropout voltage?
- A: Dropout is 0.33V at 200mA load.
- Q: What is the quiescent current?
- A: Ultra-low quiescent current of 1.5µA.
- Q: What package is available?
- A: 4-DFN (1x1mm) package.

UM1530DB-27.pdf