300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR The part **AP2125K-1.8TRG1** is manufactured by **BCD Semiconductor (now Diodes Incorporated)**.  

### Specifications:  
- **Output Voltage:** 1.8V  
- **Output Current:** 150mA  
- **Input Voltage Range:** 2.5V to 6.0V  
- **Dropout Voltage:** 200mV (typical at 100mA load)  
- **Quiescent Current:** 45µA (typical)  
- **Package:** SOT-23-5  
- **Features:** Low dropout (LDO), low noise, low quiescent current, thermal shutdown, and current limit protection  
- **Applications:** Battery-powered devices, portable electronics, and voltage regulation  

This is a fixed-output LDO regulator designed for stable performance in compact applications.