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Step-Down DC-DC Converter
  • SKU
    WD1071VA
  • Category
    Power Management - DC2DC
  • Application
    Surveillance, IoT/Emerging

WD1071VA is a synchronous step-down DC-DC converter optimized for high efficiency and compact solution size. The device integrates switches capable of delivering output current up to 1A. At the whole load range, the device operates in quasi fixed frequency constant on time mode with 1.5 MHz switching frequency. In shutdown, the current consumption is reduced to less than 2 μA.

An internal soft start circuit limits the inrush current during startup. Other features like over current protection and thermal shutdown protection are built-in.

The WD1071VA is available in SOT-563 package. Standard product is Pb-free and Halogen-free.

Applications
– General Purpose POL Supply
– Set Top Box
– Network Video Camera
– Wireless Router
– Solid State Driver / Hard Disk Driver

Input voltage range of 2.5V to 5.5V

Forced PWM to Reduce Output Voltage Ripple

Up to 95% Efficiency

Integrate 125 mΩ (High Side) / 65 mΩ (Low Side)
Low RDS(ON) Power MOSFETs

Adjustable Output Voltage from 0.6V to VIN

100% Duty Cycle for Lowest Dropout

1.5 MHz Typical Switching Frequency

Over-current protection and Hiccup

Thermal Shutdown Protection

  • Spec
    WD1071VA
  • Vin Min(V)
    2.5
  • Vin Max(V)
    5.5
  • Iq(uA)
    500
  • Input OVP(V)
    NA
  • Output Current / Current Limit(A)
    1
  • Freqency (KHz)
    1500
  • Output OVP(V)
    NA
  • PFM Mode at Light Load
    NA