Union Semiconductor International Limited UM1550S-36
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.04 | $1.04 |
| 15+ | $0.24 | $3.60 |
| 25+ | $0.23 | $5.75 |
| 50+ | $0.22 | $11.00 |
| 100+ | $0.20 | $20.00 |
| N+ | $0.04 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | UM1550 |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 8V |
| Voltage - Output (Min/Fixed) | 3.6V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.3V @ 200mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 3.5 µA |
| Current - Supply (Max) | - |
| PSRR | 56dB ~ 42dB (100Hz ~ 1kHz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package | SOT-23-3 |
| ROHS |  |
The UM1550S-36 from Union Semiconductor is a fixed 3.6V output LDO linear regulator delivering up to 300mA. Its most notable feature is an ultra-low quiescent current of just 3.5 µA, making it one of the most power-efficient regulators available for battery-powered applications. The dropout voltage is a modest 0.3V at 200mA, and it provides PSRR of 56dB at 100Hz and 42dB at 1kHz. Housed in a compact SOT-23-3 package, it is designed for portable and low-power electronics.
- Industry-Leading Low Quiescent Current: 3.5 µA extends battery life in always-on applications.
- High Output Current: 300mA supports a wide range of loads.
- Low Dropout: 0.3V at 200mA maintains regulation with low input margins.
- Compact Package: SOT-23-3 is ideal for space-constrained designs.
- Good Low-Frequency PSRR: 56dB at 100Hz filters mains ripple effectively.
Coin-Cell Battery Devices
With a quiescent current of only 3.5 µA, the UM1550S-36 is ideal for devices powered by coin-cell batteries, extending shelf life to years in remote controls and key fobs.
Energy Harvesting Systems
The ultra-low quiescent current makes it suitable for energy harvesting applications where every microamp of current is critical for system operation.
Portable Instruments
The 300mA output and 3.6V fixed voltage provide a stable supply for handheld multimeters and portable test equipment.
Wireless Sensor Nodes
For battery-powered wireless sensors, the low dropout of 0.3V at 200mA ensures efficient operation even as the battery voltage drops.
Consumer Electronics
The SOT-23-3 package and 3.6V output make it suitable for powering logic circuits and small displays in consumer devices.
Standby Power Circuits
In appliances with standby modes, the 3.5 µA quiescent current minimizes power consumption while maintaining a ready state.
- Q: What is the output voltage of the UM1550S-36?
- A: The output voltage is fixed at 3.6V.
- Q: What is the maximum output current?
- A: It can provide up to 300mA of output current.
- Q: What is the input voltage range?
- A: The maximum input voltage is 3.6V; the minimum is not specified in the provided data.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 3.5 µA.
- Q: What package is available?
- A: It is available in a SOT-23-3 package.
UM1550S-36.pdf
- Q: What is the output voltage of the UM1550S-36?
- A: The output voltage is fixed at 3.6V.
- Q: What is the maximum output current?
- A: It can provide up to 300mA of output current.
- Q: What is the input voltage range?
- A: The maximum input voltage is 3.6V; the minimum is not specified in the provided data.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.3V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 3.5 µA.
- Q: What package is available?
- A: It is available in a SOT-23-3 package.
