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GLF1421

Dual Channel, IQSmartTM Load Switch with TRCB

home Product Load Switch IC GLF1421
Product Features

  • Supply Voltage Range

    1.5 V to 5.5 V

  • Slew Rate Control Pin of Output Rise Time

  • True Reverse Current Blocking Protection

  • Low RON

    175 mΩ Typ @ 5.5 VIN ; 220 mΩ Typ @ 3.3 VIN ; 265 mΩ Typ @ 2.5 VIN

  • IOUT Max

    1 A Continuous Output Current

  • Ultra-Low Quiescent Current

    IQ: 440 nA Typ. at 5.5 VIN ；210 nA Typ. at 3.3 VIN ；130 nA Typ. at 2.5 VIN

  • Ultra-Low Stand-by Current

    ISD: 20 nA Typ. at 5.5 VIN ；4 nA Typ. at 3.3 VIN ；3 nA Typ. at 2.5 VIN

  • Output Discharge Switch When Disabled

GLF1421
Product manual
Sample application
Product Description


The GLF1421 is an ultra-efficient dual channel load switch with slew rate control as well as a true reverse current blocking function. The devices feature the ultra-efficient IQSmartTM technology that supports some of the low RON, quiescent currents (IQ), and shutdown currents (ISD) in an input voltage range from 1.5 V to 5.5 V.



The GLF1421 features an industry leading true reverse current blocking (TRCB) function at both on and off states. The integrated slew rate control can also enhance system reliability by mitigating bus voltage swings during switching events. Where uncontrolled switches can generate high inrush currents that result in voltage droop and/or bus reset events, the GLF1421 slew rate control specifically limits inrush current during turn-on to minimize voltage droop.



Each channel runs independently controlled by separate EN control pin. Both devices feature an integrated output discharge switch when they are turned off to discharge output capacitors quickly.