Union Semiconductor International Limited UM1750DA-30
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.00 | $1.00 |
| 15+ | $0.23 | $3.45 |
| 25+ | $0.23 | $5.75 |
| 50+ | $0.21 | $10.50 |
| 100+ | $0.19 | $19.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | UM1750 |
| 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) | 0.15V @ 0.15A |
| Current - Output | 350mA |
| Current - Quiescent (Iq) | 130 µA |
| Current - Supply (Max) | 300 µA |
| PSRR | 63dB ~ 40dB (100Hz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 6-WDFN Exposed Pad |
| Supplier Device Package | 6-DFN (2x2) |
| ROHS |
The UM1750DA-30 is a low dropout linear regulator from Union Semiconductor, delivering a fixed 3.0V output with up to 350mA of current. It features a low 150mV dropout voltage and a 130µA quiescent current. The 6-DFN (2x2) package is designed for space-constrained, battery-powered applications requiring efficient power conversion.
- Ultra-Compact Design: The 6-DFN (2x2) package is one of the smallest available, perfect for miniaturized electronics.
- High Efficiency: Low quiescent current and dropout voltage maximize energy usage in battery-powered devices.
- Sufficient Power: 350mA output current can drive multiple ICs or a single power-hungry component.
- Clean Power Delivery: Good PSRR ensures minimal noise transfer to sensitive circuits.
Wearable Fitness Trackers
The ultra-compact 6-DFN package and 350mA output make the UM1750DA-30 ideal for powering the processor and sensors in fitness bands, where space is at a premium.
Wireless Earbuds
Its low quiescent current extends the battery life of wireless earbuds, while the stable 3.0V output ensures consistent audio processing and Bluetooth connectivity.
Smart Sensors
For industrial IoT sensors, this LDO provides a clean 3.0V rail for the sensing element and ADC, with PSRR of 63dB at 100Hz rejecting mains hum.
Portable Gaming Devices
The 350mA current capability supports the processor and display logic in handheld gaming consoles, delivering reliable performance during intense gaming sessions.
Medical Patch Devices
In wearable health monitors, the small footprint and low power consumption of the UM1750DA-30 enable discreet, long-lasting operation.
- Q: What is the output voltage of the UM1750DA-30?
- A: The fixed output voltage is 3.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 350mA.
- Q: What is the input voltage range?
- A: The input voltage is 3V (typical). Refer to the datasheet for the full operating range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 150mV at a 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 130µA.
- Q: What package is available?
- A: It comes in a compact 6-DFN (2x2) package.
- Q: What is the output voltage of the UM1750DA-30?
- A: The fixed output voltage is 3.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 350mA.
- Q: What is the input voltage range?
- A: The input voltage is 3V (typical). Refer to the datasheet for the full operating range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 150mV at a 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 130µA.
- Q: What package is available?
- A: It comes in a compact 6-DFN (2x2) package.

UM1750DA-30.pdf