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ET538XX
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General Description
The ET538XXYB of low-dropout (LDO), low-power linear regulators offer up to 400mA with PMOS pass transistor. The device offers low noise, high PSRR, low quiescent current and very good line/load transients, suitable for RF applications and analog circuits. The ET538XXYB is stable with a 1μF input and 1uF ceramic output capacitor, and uses a precision voltage reference and feedback loop to achieve accuracy of 1.5%. It is in a small DFN4(1×1)/WLCSP4(0.635mm×0.635mm) package, which is ideal for small form factor portable equipment such as wireless handsets and PDAs.
Specification
Sample
Features
- Wide Input Voltage Range from 2.2V~5.5V
- Output Voltage Range from 1.2V to 4.3V
- Output Voltage Accuracy are ±1.5%
- Output Current are up to 400mA
- Very Low IQ of 20µA Typical
- Shutdown Current of 0.1uA Typical
- Low Dropout are Typical 180mV at 400mA, 2.8V Output
- Ultra Low Noise are Typical 8µVRMS (Load=200mA)
- Very High PSRR are 100dB at 1KHz, 45dB at 1MHz,30mA
- Excellent Line/Load Transient Response
- Built-in ILIMIT Protection and Thermal Shutdown Circuit
- Built-in Auto Discharge Function
Technical Documentation
| Type | Title | Format | Date |
|---|---|---|---|
| Datasheet | ET538XX Datasheet | 2025-12-07 |
