ETEK MICROELECTRONICS ET55333B
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.11 | $0.11 |
| 15+ | $0.11 | $1.65 |
| 25+ | $0.11 | $2.75 |
| 50+ | $0.10 | $5.00 |
| 100+ | $0.09 | $9.00 |
| N+ | $0.02 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | ETEK MICROELECTRONICS |
| Product Series | ET553XX |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.4V @ 500mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 85 µA |
| Current - Supply (Max) | - |
| PSRR | 80dB (1kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |  |
The ET55333B is a high-performance 3.3V low dropout linear regulator from ETEK Microelectronics, capable of delivering up to 500mA. Its low 85 µA quiescent current and excellent 80dB PSRR at 1kHz make it an efficient and clean power solution for noise-sensitive applications. Housed in a compact SOT-23-5 package, it is designed for space-constrained portable and industrial electronics.
- High Efficiency: Low 85 µA quiescent current extends battery life in portable devices.
- Excellent Noise Rejection: 80dB PSRR at 1kHz ensures clean, stable output for sensitive analog circuits.
- High Current Capacity: 500mA output supports a wide range of loads, from sensors to microcontrollers.
- Compact Footprint: SOT-23-5 package saves valuable PCB space.
Battery-Powered IoT Devices
The 85 µA quiescent current and 500mA output make it ideal for extending battery life in sensors and wireless modules that require bursts of high current.
Portable Audio Equipment
With 80dB PSRR at 1kHz, this LDO effectively filters power supply noise, ensuring clean audio output in portable speakers and headphones.
FPGA and DSP Core Supplies
The 500mA current capability and low dropout voltage support stable core voltages for low-power FPGAs and DSPs in compact designs.
Automotive Infotainment
Its stable 3.3V rail and high PSRR help maintain consistent performance in infotainment systems where supply noise is common.
Industrial Sensor Interfaces
The SOT-23-5 package and reliable regulation make it suitable for industrial sensors requiring a clean 3.3V supply in space-constrained PCBs.
- Q: What is the output voltage of the ET55333B?
- A: The ET55333B provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.4V at a 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 85 µA.
- Q: What package is available?
- A: It is available in the SOT-23-5 package.
ET55333B.pdf
- Q: What is the output voltage of the ET55333B?
- A: The ET55333B provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.4V at a 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 85 µA.
- Q: What package is available?
- A: It is available in the SOT-23-5 package.
