IT1602 - 2A, 24V, 310KHz Async. Step-Down LED Driver


IT1602 is a PWM step-down converter designed to meet maximum 2A constant current for high power LED driving application, with a fixed switching frequency of 310kHz and a wide input supply range of 3.6V~24V. The 0.25V low feedback voltage reduces the power dissipation of the constant current setting resistor so that the high conversion efficiency up to 94% can be achieved. Moreover, a built-in low RDS(ON) power PMOSFET is also included to obtain a low conduction loss under heavy load conditions.

Not only providing excellent line/load regulations, IT1602 also features other functions, such as: external ON/OFF control, cycle-by-cycle current limit, and thermal shutdown protection. With the maximum duty cycle of 100%, IT1602 is also suitable for low drop-out conditions. This device is available in standard SOP-8L package.



  • 3.6V to 24V Wide Input Voltage Range

  • 0.25V Low Feedback Reference Voltage

  • 2A Continuous Load Current Capability

  • Up to 95% Efficiency

  • 310kHz Fixed Switching Frequency

  • 1.1mA/0.2uA Supply/Shutdown Current

  • Cycle-by-Cycle Current Limit

  • 100% Maximum Duty Cycle

  • Built-in Low RDS(ON) Power PMOSFET

  • Thermal Shutdown

  • Standard SOP-8L Package



Technology Information:

  Data Sheet

  Package: SOP-8L


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