Application Note: SM8081 High Efficiency, 1.5MHz, 1A Synchronous Step Down Regulator
1、芯片描述:
SM8081 is a high efficiency 1.5MHz synchronous step down DC/DC regulator capable of delivering up to 1A output current. It can operate over a wide input voltage range from 2.5V to 5.5V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The low output voltage ripple, the small external inductor and the capacitor sizes are achieved with 1.5MHz switching frequency(点击咨询).
2、芯片特性:
·2.5V to 5.5V Input Voltage Range ·
·70μA Low Quiescent Current ·
·Low RDS(ON) for Internal Switches (Top/Bottom) 260mΩ /170mΩ ·
·High Switching Frequency 1.5MHz Minimizes the External Components
·Internal Soft-start Limits the Inrush Current ·
· 100% Dropout Operation ·
·Reliable Short Circuit Protection ·
·Output Auto Discharge Function ·
·RoHS Compliant and Halogen Free ·
· Compact Package: SOT23-5
3、芯片的应用: Set Top Box · USB Dongle · Media Player · Smart phone
j4、应用线路图:
5、封装(角位图)
6、订购信息:
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