ETEK MICROELECTRONICS ET5H118
| 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 | ET5H1XX |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 30V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.45V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 3 µA |
| Current - Supply (Max) | - |
| PSRR | 55dB (1kHz) |
| Control Features | - |
| Protection Features | Short Circuit |
| 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 ET5H118 is a low-power LDO regulator from ETEK Microelectronics, delivering a fixed 1.8V output at up to 150mA. With a quiescent current of just 3 µA and 55dB PSRR at 1kHz, it is designed for battery-operated and noise-sensitive applications. The SOT-23-5 package ensures easy integration into standard PCB designs.
- Low Power Consumption: 3 µA quiescent current extends battery life in standby-heavy applications.
- Compact and Standard: SOT-23-5 package is industry-standard, simplifying design and procurement.
- Stable Output: 55dB PSRR at 1kHz ensures clean power for analog circuits.
- Adequate Current: 150mA is sufficient for most low-power MCUs and sensors.
Low-Power Microcontrollers
With 150mA and 3 µA IQ, it's perfect for MSP430 or STM32L0 series MCUs in always-on sensing applications.
Portable Audio Players
55dB PSRR at 1kHz helps reduce audible noise in headphone amplifier power supplies.
Smart Home Sensors
Stable 1.8V for temperature/humidity sensors, with low quiescent current extending battery life in wireless door/window sensors.
Wearable Fitness Trackers
SOT-23-5 package and 150mA output support accelerometers and heart-rate sensors in compact wearables.
Remote Controls
Efficient 1.8V rail for IR receivers and low-power RF transmitters in universal remotes.
Embedded Systems
Reliable 1.8V for logic level shifting and I/O expansion in industrial embedded boards.
- Q: What is the output voltage?
- A: The ET5H118 provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: It can supply up to 150mA of current.
- Q: What is the dropout voltage?
- A: Dropout is 1.45V at 150mA, requiring a minimum input of about 3.25V for regulation.
- Q: What is the quiescent current?
- A: Quiescent current is only 3 µA, making it efficient for low-power applications.
- Q: What is the PSRR?
- A: PSRR is 55dB at 1kHz, providing adequate noise filtering.
- Q: What is the package?
- A: Available in SOT-23-5 package.
- Q: What is the output voltage?
- A: The ET5H118 provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: It can supply up to 150mA of current.
- Q: What is the dropout voltage?
- A: Dropout is 1.45V at 150mA, requiring a minimum input of about 3.25V for regulation.
- Q: What is the quiescent current?
- A: Quiescent current is only 3 µA, making it efficient for low-power applications.
- Q: What is the PSRR?
- A: PSRR is 55dB at 1kHz, providing adequate noise filtering.
- Q: What is the package?
- A: Available in SOT-23-5 package.

ET5H118.pdf