DESCRIPTION

The MP23701 is a 24V, monolithic, synchronous, step-down, white LED driver with a built-in power MOSFET and rectifier. The MP23701 can achieve up to 2A of continuous output current with excellent load and line regulation. Peak-current mode operation provides fast transient response and easy loop stabilization.

The MP23701 implements deep analog dimming. Full protection features include cycleby-cycle peak-current limiting, output shortcircuit protection (SCP), open LED protection, NTC thermal protection, and thermal shutdown.

The MP23701 requires a minimal number of readily available, standard, external components and is available in a UTQFN-8 (1.5mmx2.5mm) package.

FEATURES

 4.2V to 24V Wide Input Range

 Synchronous Step-Down Converter

 100mΩ Internal High-Side Power MOSFET

 80mΩ Internal Low-Side Synchronous Rectifier

 Peak-Current Mode Control

 Up to 2A Continuous Output Current

 100mV Feedback Voltage

 Up to 97% Efficiency

 Fixed 1.5MHz Switching Frequency

 Analog Dimming

 Cycle-by-Cycle Current Limit

 Inherent LED Open Protection

 Output Short-Circuit Protection (SCP)

 NTC Thermal Protection

 Thermal Shutdown

 Auto-Restart Function

 Available in a UTQFN-8 (1.5mmx2.5mm) Packages

APPLICATIONS

 Infrared LED Drivers

 General LED Drivers

 Flashlights

 Handheld Computer Backlight