Union Semiconductor International Limited UM1540DB-30
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.28 | $1.28 |
| 15+ | $0.29 | $4.35 |
| 25+ | $0.29 | $7.25 |
| 50+ | $0.27 | $13.50 |
| 100+ | $0.24 | $24.00 |
| N+ | $0.05 | Price Inquiry |
Request Quote / Inquiry
| 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 | 4-XDFN Exposed Pad |
| Supplier Device Package | 4-DFN (1x1) |
| ROHS |  |
The UM1540DB-30 is a low dropout linear regulator from Union Semiconductor, providing a fixed 3.0V output with up to 300mA of current. It features an ultra-low quiescent current of 1.5 µA, making it an excellent choice for battery-powered and energy-harvesting applications. The dropout voltage is a low 0.33V at 200mA. Its ultra-compact 4-DFN (1x1) package is ideal for designs where PCB space is at a premium.
- Space-Saving Design: The 4-DFN (1x1) package is one of the smallest available, enabling ultra-miniature product designs.
- Energy Efficient: With 1.5 µA quiescent current, it minimizes power loss, making it ideal for battery-operated devices.
- Reliable Performance: Provides a stable 3.0V output with low dropout, ensuring consistent operation across varying load conditions.
- Versatile Application: Suitable for a wide range of portable and wearable electronics requiring low power and small size.
Miniature IoT Modules
The 4-DFN (1x1) package is perfect for tiny IoT modules, providing a stable 3.0V supply for sensors and wireless SoCs while the 1.5 µA quiescent current preserves battery life.
Hearing Aids and Implants
Ultra-compact size and low power consumption make this LDO suitable for medical implants and hearing aids, where space and battery efficiency are paramount.
Portable Gaming Devices
Delivering 300mA at 3.0V, this regulator powers microcontrollers and displays in handheld gaming consoles, ensuring consistent performance.
Smart Cards and RFID Tags
The low dropout voltage allows operation from a small battery or harvested energy, providing a stable 3.0V rail for contactless communication circuits.
Wearable Health Monitors
Ideal for powering optical heart-rate sensors and accelerometers in fitness bands, the UM1540DB-30 ensures low noise and stable operation.
Embedded Systems
This LDO offers a reliable 3.0V power solution for microcontrollers in industrial and consumer embedded systems, with thermal protection for safety.
- Q: What is the output voltage of the UM1540DB-30?
- A: The fixed output voltage is 3.0V.
- 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 explicitly specified in the datasheet; refer to the official datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.33V at a 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a very low 1.5 µA, ideal for battery-powered devices.
- Q: What package is available?
- A: It comes in a compact 4-DFN (1x1) package.
UM1540DB-30.pdf
- Q: What is the output voltage of the UM1540DB-30?
- A: The fixed output voltage is 3.0V.
- 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 explicitly specified in the datasheet; refer to the official datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.33V at a 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a very low 1.5 µA, ideal for battery-powered devices.
- Q: What package is available?
- A: It comes in a compact 4-DFN (1x1) package.
