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2-A Step-Down Converter with Forced PWM Feature
  • SKU
    WD1072D
  • Category
    Power Management - DC2DC
  • Application
    Surveillance, IoT/Emerging

The WD1072 is a synchronous step-down DC-DC converter optimized for high efficiency and compact solution size. The device integrates switches capable of delivering an output current up to 2A. At the whole load range, the device operates in the quasi-fixed frequency constant on time mode with 1.5 MHz switching frequency. In shutdown, the current consumption is less than 2 μA.

An internal soft start circuit limits the inrush current during startup. The WD1071 also has built-in features including over current protection and thermal shutdown protection.

The WD1072 is available in an SOT-563 and a DFN1616 package. Standard products are Pb-free and Halogen-free.

Applications
– General purpose POL supplies
– Set top boxes
– Network video cameras
– Wireless routers
– Solid state drivers and hard disk drivers

Input voltage range from 2.5V to 5.5V

Forced PWM to reduce output voltage ripple

Up to 95% efficiency

Integrate 125 mΩ (high side) and 65 mΩ (low side) low RDS(ON) power MOSFETs

Adjustable output voltage from 0.6V to VIN

100% duty cycle for the lowest dropout

1.5 MHz typical switching frequency

Over-current protection and hiccup

Thermal shutdown protection

  • Spec
    WD1072D
  • Output Current / Current Limit(A)
    2
  • Package
    DFN1616
  • PFM Mode at Light Load
    NA
  • Size
    1.6×1.6
  • Subfamily
    Buck converters
  • Category
    DC2DC
  • Freqency (KHz)
    1500
  • Input OVP(V)
    NA
  • Iq(uA)
    500
  • Output OVP(V)
    NA
  • Use Case
    Emerging, Security
  • Vin Max(V)
    5.5
  • Vin Min(V)
    2.5