NCP1521B Description
Pin Name Type 1 VIN Analog / Power Input 2 GND Analog / Power Ground 3 EN Digital Input 4 FB Analog Input 5 LX Analog Output Description Power supply input for the PFET power stage, analog and digital blocks. The pin must be decoupled to ground by a 4.7 mF ceramic capacitor. This pin is the GND reference for the NFE.
NCP1521B Key Features
- Up to 96% Efficiency
- Best-In-Class Ripple, including PFM Mode
- Sources up to 600 mA
- 1.5 MHz Switching Frequency
- Adjustable Output Voltage from 0.9 V to 3.9 V
- Synchronous Rectification for Higher Efficiency
- 2.7 V to 5.5 V Input Voltage Range
- Low Quiescent Current
- Shutdown Current Consumption of 0.3 mA
- Thermal Limit Protection
NCP1521B Applications
- Up to 96% Efficiency
- Best−In−Class Ripple, including PFM Mode
- Sources up to 600 mA