www.DataSheet4U.com
Preliminary
RT9703
80mΩ, 3A Smart Universal Power Switch with Flag
General Description
The RT9703...
www.DataSheet4U.com
Preliminary
RT9703
80mΩ, 3A Smart Universal Power Switch with Flag
General Description
The RT9703 is a low
voltage, high performance single N-Channel
MOSFET power switch, designed for power rail on/off control with low R DS(ON) ≈ dd 80m Ω and full protection functions. The RT9703 equipped with a charge pump circuitry to drive the internal
MOSFET switch and a flag output is available to indicate fault conditions against large di/dt which may cause the supply to fall out of regulation. In order to fit different application, an IP pin is offered for current limit point setting, a resistor from IP to ground sets the current limit for the switch. Additional features include soft-start to limit inrush current during plug-in, thermal shutdown to prevent catastrophic switch failure from high-current loads, under-
voltage lockout (UVLO) to ensure that the device remains off unless there is a valid input
voltage present, a precision resistor-programmable output current limit up to 3.5A. Besides, the lower quiescent current as 30µA making this device ideal for portable battery-operated equipment. The RT9703 is available in SOP-8 package requiring minimum board space and smallest components.
Features
Adjustable Current Limiting Up To 3.5A Built-In (Typically 80mΩ) N-Channel
MOSFET Reverse Current Flow Blocking (no body diode) i.e. Output Can Be Forced Higher Than Input (Off-State) Low Supply Current: 30µA Typical at Switch On State Less Than 1µA Typical at Switch O...