Union Semiconductor International Limited UM1770Y-00
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.08 | $2.08 |
| 15+ | $0.48 | $7.20 |
| 25+ | $0.47 | $11.75 |
| 50+ | $0.44 | $22.00 |
| 100+ | $0.39 | $39.00 |
| N+ | $0.08 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 1V |
| Voltage - Output (Max) | 5V |
| Voltage Dropout (Max) | 0.32V @ 500mA |
| 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 |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SOT-89-5/6 |
| Supplier Device Package | SOT-89-5 |
| ROHS |  |
The UM1770Y-00 from Union Semiconductor is a low-dropout linear regulator providing a fixed 5V output with a maximum current of 500mA. It features a low dropout voltage of 0.32V at full load, making it efficient for 5V applications. The device offers good noise rejection with PSRR from 65dB at 100Hz to 45dB at 10kHz. With a quiescent current of 140 µA, it balances performance and power efficiency. The SOT-89-5 package is compact and suitable for various applications.
- Low Dropout for 5V Rails: 0.32V dropout ensures efficient regulation from 5.5V or lower inputs.
- Broad Frequency Noise Rejection: PSRR of 65dB at 100Hz and 45dB at 10kHz filters both mains and switching noise.
- Moderate Quiescent Current: 140 µA offers a good balance for always-on applications.
- Compact SOT-89-5 Package: Provides a small footprint with adequate thermal dissipation for 500mA.
USB-Powered Devices
Regulates 5V from a USB bus with a low dropout of 0.32V, ensuring stable operation even when the bus voltage sags.
Microcontroller Power Supplies
Provides a clean 5V rail for AVR, PIC, or STM32 microcontrollers, with sufficient current for peripherals.
Sensor Interface Boards
Ideal for powering 5V sensors and analog front-ends, with PSRR reducing noise from switching regulators.
Logic Level Converters
Supplies a stable 5V rail for level-shifting circuits in mixed-voltage systems.
LED Display Drivers
Can power small LED matrix drivers, providing a regulated 5V supply for consistent brightness.
Battery Charger Circuits
Used as a post-regulator to provide a clean 5V for charging circuits in portable devices.
- Q: What is the output voltage of the UM1770Y-00?
- A: The fixed output voltage is 5V.
- Q: What is the maximum output current?
- A: It can provide up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified; the provided data lists a typical input of 1V, which is below the output voltage. Please verify with the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.32V at 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 140 µA.
- Q: What is the PSRR?
- A: The PSRR ranges from 65dB at 100Hz to 45dB at 10kHz.
UM1770Y-00.pdf
- Q: What is the output voltage of the UM1770Y-00?
- A: The fixed output voltage is 5V.
- Q: What is the maximum output current?
- A: It can provide up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified; the provided data lists a typical input of 1V, which is below the output voltage. Please verify with the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.32V at 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 140 µA.
- Q: What is the PSRR?
- A: The PSRR ranges from 65dB at 100Hz to 45dB at 10kHz.
