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    The SD42560 is PWM control LED driver in Buck/Boost/Buck-Boost modes with thermal shutdown circuit, current limit circuit and PWM dimming circuit.  And good line regulation and load regulation are available with wide voltage input. 

    The SD42560 adopts current mode control which provides fast transient response, excellent constant current characteristic and simple loop stabilization design. It has high efficiency: 96% for buck mode, 83% for buck-boost mode and 95% for boost mode.


Main feature
  • 5~36V input voltage range

  • Maximum 1A output current (Buck mode) 

  • 0.3W built-in power MOSFET

  • PWM dimming function

  • 280kHz fixed frequency

  • Excellent constant current accuracy ±3%

  • High efficiency up to 96%.

  • Thermal shutdown

  • Cycle-by-cycle over current protection

  • Over voltage protection (boost/buck-boost mode) 


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SD42560 SOP-8-225-1.27 SD42560 Pb free Tube
SD42560TR SOP-8-225-1.27 SD42560 Pb free Tape & Reel
SD42560E ESOP-8-225-1.2 SD42560E Pb free Tube
SD42560ETR ESOP-8-225-1.27 SD42560E Pb free Tape & Reel
Block Diagram

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Documents
title Types of Size (KB) date Download the latest English version
SD42560 0 1970-01-01 SD42560 Brief Datasheet