Union Semiconductor International Limited UM1530S-33
| 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 |
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| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | UM1530 |
| 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) | 0.33V @ 200mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 1.5 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 UM1530S-33 is a fixed 3.3V low dropout linear regulator from Union Semiconductor, delivering up to 300mA of output current. Its ultra-low 1.5 µA quiescent current and low dropout voltage of 0.33V @ 200mA make it an excellent choice for battery-powered and portable applications. Housed in a compact SOT-23-3 package, this LDO provides stable and clean power with good ripple rejection, ensuring reliable performance in space-constrained designs.
- Extended Battery Life: Ultra-low 1.5 µA quiescent current minimizes standby power consumption, ideal for battery-operated devices.
- High Efficiency at Low Dropout: 0.33V dropout at 200mA allows operation from nearly depleted batteries, maximizing usable energy.
- Compact Footprint: SOT-23-3 package saves PCB space, enabling miniaturized product designs.
- Clean Output: PSRR of 56dB to 42dB (100Hz-1kHz) filters input noise, providing a stable supply for sensitive analog circuits.
Microcontroller Power Supplies
The 3.3V output is the standard logic voltage for many MCUs. The UM1530S-33 provides a stable, low-noise supply with 300mA capability, sufficient for most microcontroller-based designs.
Battery-Powered Remote Controls
With only 1.5 µA quiescent current, this LDO is perfect for remote controls and other devices that spend most of their time in standby, preserving battery life for years.
Portable Audio Players
The PSRR of 56dB to 42dB helps reduce power supply noise, delivering cleaner audio performance in portable media players and DACs.
Smart Home Sensors
In smart home devices like thermostats and motion sensors, the UM1530S-33 ensures reliable 3.3V operation from battery or energy harvesting sources.
Industrial Control Interfaces
The low dropout voltage allows regulation from a 3.5V or 3.6V rail, making it suitable for industrial sensors and control interfaces with tight voltage margins.
- Q: What is the output voltage of the UM1530S-33?
- A: The UM1530S-33 provides a fixed output voltage of 3.3V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 300mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the provided data; please refer to the official datasheet for the full input voltage range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.33V at a 200mA load, ensuring efficient operation with low headroom.
- Q: What is the quiescent current?
- A: The quiescent current is a very low 1.5 µA, making it ideal for battery-powered applications.
- Q: What package is the UM1530S-33 available in?
- A: It is available in the compact SOT-23-3 package.
UM1530S-33.pdf
- Q: What is the output voltage of the UM1530S-33?
- A: The UM1530S-33 provides a fixed output voltage of 3.3V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 300mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the provided data; please refer to the official datasheet for the full input voltage range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.33V at a 200mA load, ensuring efficient operation with low headroom.
- Q: What is the quiescent current?
- A: The quiescent current is a very low 1.5 µA, making it ideal for battery-powered applications.
- Q: What package is the UM1530S-33 available in?
- A: It is available in the compact SOT-23-3 package.
