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Step Down DC-DC Converter
  • SKU
    WD1034E
  • Category
    Power Management - DC2DC GROUP

The WD1034 is a high efficiency, synchronous step down DC-DC converter optimized for battery powered portable applications. It supports up to 2A output current. With a wide input voltage range of 2.5V to 5.5V, the device supports applications powered by single Li-ion battery with extended voltage range, two and three alkaline cell, 3.3V and 5V input voltage range. The WD1034 operates at 1.5 MHz fixed switching frequency with Pulse-Width-Modulation (PWM) and enters Pulse-Skipping-Modulation (PSM) operation at light load current to maintain high efficiency over the entire load current range.

The switching frequency is internally set at 1.5 MHz, allowing the use of tiny surface mount inductor and input/output capacitors. Low output voltage is easily supported with the 0.6V feedback reference voltage.

The WD1034 is available in SOT-23-6L package. Standard product is Pb-free and Halogen-free.

Applications
– Cellphones
– PADs
– STBs
– DSCs

Input voltage range:
2.5~5.5V

Continue output current:
2A

Switching frequency:
1.5 MHz (Typ.)

Efficiency:
Up to 94%

Feedback reference voltage:
0.6V

100% duty cycle for low dropout operation

Adjustable Output Voltage

  • Spec
    WD1034E
  • Description
    5V/2A Buck With Power Good
  • Vin Min(V)
    2, 5
  • Vin Max(V)
    5
  • Input OVP(V)
    5, 6
  • LED Driver
    DC-DC
  • Status
    MP
  • Control Mode
    CM
  • Output Current / Current Limit(A)
    2
  • Freqency (KHz)
    1500
  • Output OVP(V)
    NA
  • Topology
    Buck
  • PFM Mode at Light Load
    YES