RT9701GB 编带
General Description
The RT9701 is an integrated 100mΩ power switch for self-powered and bus-powered Universal Series Bus USB applications. A built-in charge pump is used to drive the N-Channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. Its low quiescent current 23μA and small package SOT-23-5 is particularly suitable in battery-powered portable equipment.
Several protection functions include soft start to limit inrush current during plug-in, current limiting at 1.5A to meet USB power requirement, and thermal shutdown to protect damage under over current conditions.
Features
• 100mΩ Typ. High-Side NMOSFET SOT-23-5
• Guaranteed 1.1A Continuous Current
• 1.5A Current Limit
• Small SOT-23-5 Package Minimizes Board Space
• Soft Start
• Thermal Protection
• Low 23μA Supply Current
• Wide Input Voltage Range : 2.2V to 6V
• UL Approved - #E219878
• RoHS Compliant and 100% Lead Pb-Free
Applications
• Battery-Powered Equipment
• Motherboard USB Power Switch
• USB Device Power Switch
• Hot-Plug Power Supplies
• Battery-Charger Circuits