ETEK MICROELECTRONICS ET55330B
| 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) | 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 ET55330B is a fixed 3V LDO regulator from ETEK MICROELECTRONICS, delivering up to 500mA of output current. It features a low dropout voltage of just 0.4V at full load and a quiescent current of 85µA. With PSRR of 80dB at 1kHz, it provides excellent noise suppression for sensitive electronics. The SOT-23-5 package offers a compact solution for a wide range of applications.
- High Output Current: 500mA capability supports power-hungry loads like wireless modules and displays.
- Very Low Dropout: 0.4V dropout enables efficient conversion from 3.3V or 5V rails.
- Excellent PSRR: 80dB at 1kHz ensures clean, stable output for RF and analog circuits.
- Compact Package: SOT-23-5 saves board space while providing adequate thermal performance.
USB-Powered Devices
USB 5V supplies can be regulated down to 3V with only 0.4V dropout, making the ET55330B ideal for powering 3V logic and sensors from USB ports.
Battery-Powered Equipment
With 500mA output and 85µA quiescent current, this LDO suits devices powered by 3.7V Li-ion batteries, providing stable 3V output.
Wireless Modules
Bluetooth and Zigbee modules often require 3V supplies. The 80dB PSRR at 1kHz ensures clean power for RF performance.
Portable Gaming Consoles
Handheld gaming devices need efficient power conversion. The low dropout and 500mA capability support processors and displays.
Industrial Sensors
Factory automation sensors operate at 3V. This regulator's robust design handles industrial temperature ranges and voltage fluctuations.
Consumer Electronics
Digital cameras and MP3 players benefit from the compact SOT-23-5 package and reliable 3V output for audio and control circuits.
- Q: What is the output voltage of the ET55330B?
- A: The fixed output voltage is 3V.
- 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 explicitly provided; the dropout of 0.4V at 500mA suggests a minimum input of ~3.4V for full output.
- Q: What is the dropout voltage?
- A: Dropout is only 0.4V at 500mA load, enabling efficient operation from 3.3V rails.
- Q: What is the quiescent current?
- A: The quiescent current is 85 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
ET55330B.pdf
- Q: What is the output voltage of the ET55330B?
- A: The fixed output voltage is 3V.
- 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 explicitly provided; the dropout of 0.4V at 500mA suggests a minimum input of ~3.4V for full output.
- Q: What is the dropout voltage?
- A: Dropout is only 0.4V at 500mA load, enabling efficient operation from 3.3V rails.
- Q: What is the quiescent current?
- A: The quiescent current is 85 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
