SY21034 Overview
The SY21034 high-efficiency asynchronous stepdown DC/DC regulator can deliver 0.6A current over a wide input voltage range from 4.5V to 100V. It uses constant-off-time and peak-current-mode control to achieve fast transient response, and integrates a main switch with low RDS(ON) to minimize conduction loss. The 200kHz switching frequency permits low output-voltage ripple and reduces external inductor and capacitor...
SY21034 Key Features
- 4.5V to 100V Input Voltage Range
- Up to 0.6A Output Current
- Low RDS(ON) for Internal N-Channel power
- 200kHz Pseudo-constant Switching
- Constant Off-Time and Peak-Current-Mode
- Internal Soft-Start
- 0.6V ±1% Reference
- Hiccup Mode Short-Circuit Protection
- EN On/Off Control with Accurate Threshold
- Cycle-by-Cycle Peak Current limit