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AP8802 (Not Recommended for new design)

NRND = Not Recommended for New Design

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The AP8802 is a step-down DC/DC converter designed to drive LEDs with a constant current. The device can drive up to thirteen LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 8V to 48V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AP8802 switches at frequency up to 500kHz. This allows the use of small size external components, hence minimizing the PCB area needed. Maximum output current of AP8802 is set via an external resistor connected between the VIN and SET input pins. Dimming is achieved by applying either a DC voltage or a PWM signal at the CTRL input pin. An input voltage of 0.2V or lower at CTRL shuts down the output at SW and puts the device into a low-current standby state.


  • LED driving current up to 1A
  • High efficiency up to 92%
  • Operating input voltage up to 48V
  • High switching frequency up to 500kHz
  • PWM/DC input for dimming control
  • Built-in output open-circuit protection
  • SO-8, SO-8EP and DFN3030-10 are available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish/RoHS Compliant


  • Commercial & industrial lighting
  • Small LCD panel backlight
  • Appliances interior lighting
  • Architecture Detail lighting

Product Specifications

Product Parameters

AEC Qualified No
AEC-Q100 Grade No
Compliance (Only Automotive supports PPAP) Standard
Compliance (Only Automotive supports PPAP) Standard
Dimming (Analog) Yes
Dimming (PWM) Yes
Efficiency (%) 92
Efficiency (%) 92
LED Current Accuracy (%) 8
LED Current Accuracy (%) 8
MaximumInput Voltage (V) 48
Maximum Input Voltage (V) 48
Maximum LED Current (A) 1
Maximum LED Current (A) 1
Maximum Output Voltage (V) 48
Maximum Output Voltage (V) 48
MinimumInput Voltage (V) 8
Minimum Input Voltage (V) 8
OperatingTemperatureRange  (°C) -40 to 105
Operating Temperature Range (°C) -40 to 105
AEC Qualified No
Sense Voltage (mV) 200
Sense Voltage (mV) 200
Switching Frequency Maximum (kHz) 700
Switching Frequency Maximum (kHz) 700
Topologies (Boost) No
Topologies (Buck-Boost) No
Topologies (Buck) Yes
Topologies (Charge Pump) No

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