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RT9722

145mΩ, 1.5A Power Switch with Programmable Current Limit

RT9722
New

The RT9722 is a cost effective, low voltage, single P-MOSFET high side power switch IC. Typical 145mΩ switch on resistance and 10μA quiescent current are realized in this IC. In order to fit different application, a SET pin is offered for current limit point setting, a resistor from SET to Ground sets the current limit for this switch.In addition, the RT9722 integrates a thermal shutdown circuit and under voltage lockout circuit for overall protection, and a FLAG output with delay is available to indicate fault conditions to the local controller. The RT9722 is an ideal solution for high side power load switch and can support flexible applications since it is available in various package such as WDFN-6L 2x2, SOT-23-5 and SOT-23-6.

Applications

  • Handheld Devices
  • Hot Swap Supplies
  • Notebooks
  • Peripheral Ports
  • Personal Communication Devices

Key Spec.

RT9722A RT9722B
Status EOL EOL
Number of Outputs 1 1
Vin (min) (V) 2.4 2.4
Vin (max) (V) 5.5 5.5
Ron (typ) (mOhm) 145 145
Iq (typ) (mA) 0.01 0.01
Current Limit (typ) (A) 1 1
FLAG Indicator Yes Yes
Iocp Adjustable Yes Yes
Switch Type Power Switch Power Switch
Features Adjustable Current Limit;Cycle-by-Cycle Current Limit;Enable Input;SCP Adjustable Current Limit;Cycle-by-Cycle Current Limit;Enable Input;SCP
Package Type SOT-26;WDFN2x2-6;SOT-25 SOT-26;WDFN2x2-6;SOT-25

Features

  • Programmable Current Limit : 0.2A to 1.5A

  • Low Quiescent Current : 10μA

  • Low Shutdown Current : 0.1μA

  • 145mΩ Switch On Resistance

  • Operating Voltage Range : 2.4V to 5.5V

  • Under Voltage Lockout

  • Thermal Shutdown Protection

  • RoHS Compliant and Halogen Free

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