ETEK MICROELECTRONICS ET55318B
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.10 | $0.10 |
| 15+ | $0.09 | $1.35 |
| 25+ | $0.09 | $2.25 |
| 50+ | $0.09 | $4.50 |
| 100+ | $0.08 | $8.00 |
| 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) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.5V @ 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 ET55318B is a high-performance, fixed-output LDO linear voltage regulator from ETEK MICROELECTRONICS. It delivers a stable 1.8V output with a maximum current of 500mA. Its low 85 µA quiescent current and excellent 80dB PSRR at 1kHz make it ideal for noise-sensitive and battery-powered applications. Housed in a compact SOT-23-5 package, it offers a practical solution for space-constrained designs.
- Extended Battery Life: The ultra-low 85 µA quiescent current minimizes standby power consumption, making it perfect for portable electronics.
- Clean Power Delivery: With 80dB PSRR at 1kHz, it effectively filters power supply noise, ensuring stable operation for sensitive analog and RF circuits.
- High Efficiency in Low Dropout: A low dropout voltage of 0.5V at 500mA allows operation from a tightly regulated input rail, reducing power dissipation.
- Compact Form Factor: The SOT-23-5 package is ideal for space-constrained PCB designs without compromising on performance.
Battery-Powered IoT Devices
The ET55318B's low 85 µA quiescent current and 500mA output capability make it ideal for powering sensors and microcontrollers in battery-operated IoT nodes, extending operational life.
Portable Medical Devices
With a stable 1.8V output and high PSRR of 80dB at 1kHz, this LDO ensures clean power for sensitive analog front-ends in portable health monitors and diagnostic equipment.
Wireless Communication Modules
The high PSRR helps minimize noise coupling from the power supply into RF transceivers, ensuring reliable performance in Bluetooth and Zigbee modules.
Industrial Control Systems
Its ability to deliver 500mA with a dropout of only 0.5V makes it suitable for powering logic circuits and interface ICs in industrial controllers where efficiency and stability are critical.
Audio Equipment
The low noise characteristics and high ripple rejection make the ET55318B an excellent choice for powering audio codecs and amplifiers, preserving signal fidelity.
FPGA and DSP Core Supplies
This regulator can provide a stable 1.8V rail for the core logic of FPGAs and DSPs, ensuring reliable operation under varying load conditions.
- Q: What is the output voltage of the ET55318B?
- A: The ET55318B provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of 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 official datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.5V at a 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 85 µA, making it suitable for battery-powered applications.
- Q: What package is the ET55318B available in?
- A: It is available in the compact SOT-23-5 package.
ET55318B.pdf
- Q: What is the output voltage of the ET55318B?
- A: The ET55318B provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of 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 official datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.5V at a 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 85 µA, making it suitable for battery-powered applications.
- Q: What package is the ET55318B available in?
- A: It is available in the compact SOT-23-5 package.
