• Input Voltage Range: 2.5V to 6.5V with Surge Up to 12V
• 5A Fixed Current Limit
• Ultra Low Bias Current: 50uA (typ.)
• Extremely Low RDS(ON) for the Integrated Protection Switch: 40 mΩ
• Programmable Soft-Start Time
• Short-Circuit Protection
• Selectable Input Range and Output Clamping Voltage
• Enable Interface Pin
• Thermal Shutdown Protection & Auto Recovery
• RoHS Compliant and Halogen Free
• Compact package: DFN3X3-10

The SY20855A is a current limit switch with input voltage range selection and output voltage clamping. Extremely low RDS(ON) of the integrated protection N-channel MOSFET helps to reduce power loss during normal operation. The programmable soft-start time controls the slew rate of the output voltage during start-up.

The SY20855A uses an enable control for system sequencing. The device integrates short-circuit and over-temperature protections.

The SY20855A is available in a compact DFN 3mmx3mm-10 pin package.