SY21019ABC -
Features
· 5-40V Input Voltage Range
· 2MHz Switching Frequency
· Adaptive Constant OFF Time Control
· Internal Soft-start Limits the Inrush Current
· 2% 0.6V Reference
· RoHS Compliant and Halogen Free
· Compact Package: SOT23-6
Typical Application

Description
The SY21019 is a high efficiency 2MHz, adaptive constant OFF time controlled asynchronous step-down DC/DC regulator capable of delivering 300mA output current. The SY21019 operates over a wide input voltage range from 5V to 40V.
Applications
· Smart meter
· Set Top Box
· Portable TV
· Access Point Router
· DSL Modem
· LCD TV