SY21034B
Description
The SY21034B is a high efficiency, current mode adaptive constant OFF time controlled asynchronous step-down DC/DC converter capable of delivering 1.2A output current. The SY21034B operates over a wide input voltage range from 4.5V to 100V and integrates main switch with very low RDS(ON) to minimize the conduction loss.
Key Features
- Low RDS(ON) for Internal N-channel Power FET:1Ω
- 4.5-100V Input Voltage Range
- 1.2A Output Current Capability
- 200kHz Pseudo Constant Switching Frequency
- Internal Soft-start Limits the Inrush Current
- Hic-cup Mode Output Short Circuit Protection
- EN ON/OFF Control with Accurate Threshold
- Cycle-by-cycle Peak Current Limit
- 0.6V±1 % Reference Voltage
- RoHS Compliant and Halogen Free
