Union Semiconductor International Limited UM1770DA-33
| 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) | 3.3V |
| Voltage - Output (Max) | - |
| 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, 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) |
The UM1770DA-33 is a fixed 3.3V low dropout linear regulator delivering up to 500mA. It combines a low quiescent current of 140 µA with high PSRR (65dB~45dB) for clean, stable power. The 6-DFN (2x2) package is compact, and the 0.32V dropout at full load ensures efficient operation.
- Industry-Standard Voltage: 3.3V output compatible with most digital ICs.
- High Current Capacity: 500mA supports demanding loads.
- Low Noise: 65dB~45dB PSRR for sensitive analog and RF circuits.
- Compact Package: 6-DFN (2x2) for space-constrained designs.
General-Purpose Digital Logic
The 3.3V output is a standard rail for microcontrollers, FPGAs, and digital signal processors.
Networking Equipment
Provides clean power for Ethernet PHYs, switches, and routers, with high PSRR to minimize data errors.
Industrial Sensors
Stable 3.3V supply for pressure, temperature, and flow sensors in harsh environments.
Consumer Electronics
Ideal for set-top boxes, gaming controllers, and smart home hubs requiring reliable 3.3V power.
Test and Measurement
Low noise output ensures accurate readings in multimeters, oscilloscopes, and signal generators.
Automotive Electronics
Supports infotainment, ADAS sensors, and body control modules with robust 500mA delivery.
- Q: What is the output voltage of the UM1770DA-33?
- A: The fixed output voltage is 3.3V.
- 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 3.3V (typical); refer to the datasheet for the full operating range.
- Q: What is the dropout voltage?
- A: Dropout is typically 0.32V at a 500mA load.
- 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-33.pdf
- Q: What is the output voltage of the UM1770DA-33?
- A: The fixed output voltage is 3.3V.
- 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 3.3V (typical); refer to the datasheet for the full operating range.
- Q: What is the dropout voltage?
- A: Dropout is typically 0.32V at a 500mA load.
- 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.
