ETEK MICROELECTRONICS ET5H118B
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.12 | $0.12 |
| 15+ | $0.12 | $1.80 |
| 25+ | $0.12 | $3.00 |
| 50+ | $0.11 | $5.50 |
| 100+ | $0.10 | $10.00 |
| 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 ET5H118B from ETEK Microelectronics is a fixed 1.8V low-dropout linear regulator designed for power-sensitive applications. It delivers up to 150mA with a dropout voltage of just 1.45V at full load. Its standout feature is an ultra-low quiescent current of only 3 µA, making it ideal for battery-operated devices where power conservation is critical. Housed in a compact SOT-23-5 package, this LDO offers a simple, reliable solution for portable and embedded systems.
- Ultra-Low Quiescent Current (3 µA): Dramatically extends battery life in standby and sleep modes, ideal for portable devices.
- Fixed 1.8V Output: Simplifies design by eliminating external resistor dividers and ensuring accurate voltage regulation.
- Low Dropout (1.45V @ 150mA): Allows operation from lower input voltages, improving efficiency in battery-powered systems.
- Compact SOT-23-5 Package: Saves board space in space-constrained designs like wearables and IoT modules.
Battery-Powered IoT Sensors
The ultra-low 3 µA quiescent current significantly extends battery life in wireless sensors and IoT nodes that spend most of their time in sleep mode.
Portable Medical Devices
Stable 1.8V output with low dropout is ideal for powering microcontrollers and analog front-ends in glucose monitors, pulse oximeters, and wearable health trackers.
Wearable Electronics
The small SOT-23-5 package and low power consumption make it perfect for smartwatches, fitness bands, and other space-constrained wearables.
Bluetooth Low Energy Modules
BLE modules require a clean 1.8V rail; this LDO provides stable power with minimal noise, ensuring reliable RF performance.
Energy Harvesting Systems
In systems powered by solar or thermal harvesters, the low quiescent current and low dropout help maximize usable energy from low-voltage sources.
Memory and Logic Supplies
Provides a dedicated 1.8V rail for DDR memory termination or low-voltage logic, ensuring stable operation under varying loads.
- Q: What is the output voltage of the ET5H118B?
- A: The ET5H118B is a fixed output LDO regulator providing 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data, but it must be higher than 1.8V plus dropout.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.45V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 3 µA, ideal for battery-powered devices.
- Q: What package is available?
- A: It comes in a compact SOT-23-5 surface-mount package.
ET5H118B.pdf
- Q: What is the output voltage of the ET5H118B?
- A: The ET5H118B is a fixed output LDO regulator providing 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data, but it must be higher than 1.8V plus dropout.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.45V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 3 µA, ideal for battery-powered devices.
- Q: What package is available?
- A: It comes in a compact SOT-23-5 surface-mount package.
