Union Semiconductor International Limited UM1770DA-18
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.12 | $1.12 |
| 15+ | $0.26 | $3.90 |
| 25+ | $0.25 | $6.25 |
| 50+ | $0.24 | $12.00 |
| 100+ | $0.21 | $21.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | UM1770 |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | - |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 140 µA |
| Current - Supply (Max) | 300 µA |
| PSRR | 65dB ~ 45dB (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 UM1770DA-18 is a fixed 1.8V low dropout linear regulator capable of delivering 500mA. It features a low quiescent current of 140 µA and high PSRR of 65dB to 45dB, ensuring clean power for low-voltage digital circuits. The compact 6-DFN (2x2) package is perfect for space-limited applications.
- Modern Voltage Rail: Fixed 1.8V output for low-power digital ICs.
- High Efficiency: Low quiescent current (140 µA) reduces standby power.
- Excellent Noise Performance: PSRR up to 65dB for sensitive loads.
- Miniature Footprint: 6-DFN (2x2) saves valuable PCB area.
Low-Power Microcontrollers
The 1.8V output is ideal for modern MCUs and SoCs operating at low core voltages, ensuring efficient power delivery.
Memory and Logic ICs
Provides a stable 1.8V rail for DDR memory termination, SRAM, and low-voltage logic families.
Portable Medical Devices
Compact 6-DFN package and low quiescent current make it suitable for glucose monitors, hearing aids, and drug delivery systems.
Wireless Charging Receivers
Regulates the output from wireless power receivers to a clean 1.8V for control and communication circuits.
Sensor Interfaces
Powers low-voltage digital sensors and MEMS devices with minimal noise, thanks to 65dB PSRR.
Battery-Powered IoT Devices
Extends battery life in smart home sensors and beacons with its 140 µA quiescent current.
- Q: What is the output voltage of the UM1770DA-18?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA.
- Q: What is the input voltage range?
- A: The input voltage is 1.8V (typical); refer to the datasheet for the full operating range.
- Q: What is the dropout voltage?
- A: Dropout voltage is not specified in the provided data.
- Q: What is the quiescent current?
- A: The quiescent current is 140 µA.
- Q: What package is available?
- A: It comes in a 6-DFN (2x2) package.
UM1770DA-18.pdf
- Q: What is the output voltage of the UM1770DA-18?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA.
- Q: What is the input voltage range?
- A: The input voltage is 1.8V (typical); refer to the datasheet for the full operating range.
- Q: What is the dropout voltage?
- A: Dropout voltage is not specified in the provided data.
- Q: What is the quiescent current?
- A: The quiescent current is 140 µA.
- Q: What package is available?
- A: It comes in a 6-DFN (2x2) package.
