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The AL17150-10B is a universal high voltage input step-down regulator product family, which provides accurate Constant Voltage (CV) and outstanding dynamic performance without requiring an optocoupler over line and load regulation. Typical applications are offline low power applications including connected LED lighting power supply for micro-controllers and other IoT applications.

The AL17150-10B integrates a 500V/1A MOSFET that can make it use fewer external components and create a low Bill Of Material (BOM) cost solution. The AL17150-10B can provide up to 300mA output current and lower than 50mW standby power, which is very suitable for IoT connected lighting devices.

The AL17150-10B achieves excellent regulation and high power efficiency. The characteristics of max peak current and driving
frequency vary as the load change, which can get excellent efficiency performance at light load and improve the overall average efficiency. The AL17150-10B has rich protection features to enhance the system safety and reliability. It has Over Temperature Protection, VCC Under Voltage Lock function, Output Short Protection, Over Load Protection and Open Loop Protection.

The AL17150-10B is available in SO-7 package.


  • IoT Connected Lighting Applications
  • Home Appliance Applications
  • Industrial Controls
  • Standby and Auxiliary


  • Universal 85 to 265 VAC Input Range
  • Internal MOSFET: 500V/1A
  • Tight VFB tolerance ±4%
  • Maximum 300mA Rated Output Current
  • No Load Power Consumption: < 50mW with External Bias
  • Frequency Modulation to Suppress EMI
  • Under Voltage Lock Out (UVLO)
  • Output Short Protection
  • Over Load Protection;
  • Thermal Shutdown (TSD)
  • Fewer Components
  • Low Audible Noise Solution\
  • SO-7 Package
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100, PPAP capable, and
    manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Product Specifications

Product Parameters

Minimum Input AC Voltage (VAC) 85
Maximum Input AC Voltage (VAC) 265
Maximum DC VDD (VDC) 8.8
LED Current (mA) N/A
Frequency (kHz) N/A
Accuracy 4 %
Efficiency 60% %
Dimming N/A
Supply Current 0.35 mA
Temperature Range -40 to 125 °C

Technical Documents

SPICE/IBIS Model 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 12001 3/2/2021 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 8000 3/2/2021 South America, North America, Asia, Europe, Middle East Buy Now
Avnet 96000 3/1/2021 United States Buy Now
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