SY21314 Description
The SY21314 high efficiency step-up regulator operates using current mode control over a wide input voltage range from 3V to 33V. It integrates an N-channel MOSFET with low 120mΩ RDS(ON) to minimize conduction loss. The 1MHz switching frequency and internal pensation reduce external inductor and capacitor sizes, and the built-in internal soft-start circuitry minimizes inrush current at startup.
SY21314 Key Features
- 3V to 33V Input Voltage Range
- 33V Maximum Output Voltage
- 4A Main MOSFET Current Limit
- 15 µA Shutdown Current (Max.)
- 100 µA Quiescent Current (Typ.)
- Low RDS(ON) for Internal N-Channel
- 1MHz Switching Frequency
- Internal Soft-Start
- ±2% 0.6V Reference
- Cycle-by-Cycle Peak Current Limit