ETEK MICROELECTRONICS ET51618YB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.39 | $0.39 |
| 15+ | $0.38 | $5.70 |
| 25+ | $0.37 | $9.25 |
| 50+ | $0.35 | $17.50 |
| 100+ | $0.31 | $31.00 |
| N+ | $0.06 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | ETEK MICROELECTRONICS |
| Product Series | ET531XX |
| 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) | 0.55V @ 300mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 70 µA |
| Current - Supply (Max) | - |
| PSRR | 75dB ~ 65dB (1kHz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 4-XDFN Exposed Pad |
| Supplier Device Package | 4-DFN (1x1) |
| ROHS |
The ET51618YB from ETEK MICROELECTRONICS is a fixed 1.8V low dropout regulator delivering up to 300mA. This ultra-compact 4-DFN (1x1) packaged device features an exceptionally low 70µA quiescent current and excellent PSRR of 75dB at 1kHz, making it ideal for noise-sensitive, battery-powered applications.
- Exceptional Noise Rejection: 75dB PSRR at 1kHz ensures clean power for sensitive analog circuits.
- Ultra-Low Quiescent Current: 70µA significantly extends battery life in portable devices.
- High Output Current: 300mA capability supports a wide range of loads.
- Minimal Footprint: 4-DFN (1x1) package is one of the smallest available for LDOs.
Ultra-Compact Wearables
The tiny 4-DFN (1x1) package and 300mA output make it perfect for smartwatches and fitness trackers requiring minimal PCB space.
Noise-Sensitive Audio Circuits
Excellent PSRR of 75dB at 1kHz ensures clean power for audio codecs and amplifiers, minimizing audible noise.
Low-Power Wireless Modules
The 70µA quiescent current and high PSRR make it ideal for Bluetooth and Zigbee modules that need efficient, clean power.
Portable Medical Sensors
Stable 1.8V output with low dropout ensures reliable operation of glucose monitors and other medical wearables.
IoT Edge Devices
Compact size and high efficiency make this LDO suitable for battery-powered IoT sensors and actuators.
- Q: What is the output voltage of the ET51618YB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.55V at 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 70 µA.
- Q: What is the PSRR performance?
- A: PSRR is 75dB at 1kHz and 65dB at 10kHz.
- Q: What is the package type?
- A: It comes in a 4-DFN (1x1) package.
- Q: What is the output voltage of the ET51618YB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.55V at 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 70 µA.
- Q: What is the PSRR performance?
- A: PSRR is 75dB at 1kHz and 65dB at 10kHz.
- Q: What is the package type?
- A: It comes in a 4-DFN (1x1) package.

ET51618YB.pdf