Union Semiconductor International Limited UM1540S-30
| 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 | UM1540 |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 3V |
| 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 | Enable |
| 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 UM1540S-30 is a fixed 3.0V LDO regulator from Union Semiconductor, capable of 300mA output. With an ultra-low 1.5µA quiescent current and 0.33V dropout at 200mA, it ensures efficient operation in battery-powered devices. The SOT-23-5 package provides a compact solution with PSRR of 56dB at 100Hz for noise-sensitive applications.
- Low Power: 1.5µA quiescent current extends battery life in standby mode.
- Stable Output: 3.0V fixed output with 0.33V dropout at 200mA.
- Compact Footprint: SOT-23-5 package for space-constrained PCBs.
- Noise Rejection: 56dB PSRR at 100Hz ensures clean supply for analog circuits.
Digital Logic Power
Provides a stable 3.0V rail for microcontrollers, FPGAs, and digital ICs in battery-operated systems.
Wireless Modules
Ideal for powering Bluetooth Low Energy (BLE) and Zigbee modules, ensuring clean 3.0V supply with low noise.
Portable Audio Players
Low quiescent current and PSRR of 56dB help maintain audio signal integrity in compact players.
Smart Home Sensors
Perfect for always-on environmental sensors requiring 3.0V with minimal power consumption.
Industrial Control
Regulates 3.0V for industrial sensor interfaces, with SOT-23-5 package for easy integration.
- Q: What is the output voltage?
- A: Fixed 3.0V output.
- Q: What is the maximum current?
- A: 300mA maximum output current.
- Q: What is the input voltage range?
- A: Not specified in provided data; check datasheet.
- Q: What is the dropout voltage?
- A: 0.33V at 200mA load.
- Q: What is the quiescent current?
- A: Only 1.5µA.
- Q: What package is it available in?
- A: SOT-23-5 package.
UM1540S-30.pdf
- Q: What is the output voltage?
- A: Fixed 3.0V output.
- Q: What is the maximum current?
- A: 300mA maximum output current.
- Q: What is the input voltage range?
- A: Not specified in provided data; check datasheet.
- Q: What is the dropout voltage?
- A: 0.33V at 200mA load.
- Q: What is the quiescent current?
- A: Only 1.5µA.
- Q: What package is it available in?
- A: SOT-23-5 package.
