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The AL8811 is a monolithic control circuit containing the primary functions required for DC-to-DC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This series is specifically designed for incorporating in Step-up, Step-Down and Voltage-Inverting applications with a minimum number of external components.


  • Operation from 3.0V to 20V Input
  • Low Standby Current
  • Current Limiting
  • Output Switch Current to 1.6A
  • Output Voltage Adjustable
  • Frequency Operation to 100 kHz
  • Precision 2% Reference
  • MSOP-8L: Available in “Green” Molding Compound


  • Low Voltage LED Lighting such as MR-16
  • General Purpose DC-DC Converter

Product Specifications

Product Parameters

AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Topologies (Buck) Yes
Topologies (Buck-Boost) Yes
Topologies (Boost) Yes
MinimumInput Voltage (V) 3 V
MaximumInput Voltage (V) 20 V
Maximum Output Voltage (V) Ext MOSFET V
Maximum LED Current (A) Ext MOSFET A
LED Current Accuracy (%) 2 %
Switching Frequency Maximum (kHz) 100 kHz
Dimming (PWM) No
Dimming (Analog) No
Efficiency (%) 90 %
OperatingTemperatureRange  (°C) -40 to 105 °C
Sense Voltage (mV) 400 mV
AEC-Q100 Grade No

Related Content


Technical Documents

Evaluation Boards and User Guides

Recommended Soldering Techniques


Orderable Part Number Buy from Distributor / Contact Sales Request Samples


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 2500 1/19/2022 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 2469 1/19/2022 South America, North America, Asia, Europe, Middle East Buy Now
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