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Step-Down DC-DC Converter
  • SKU
    WD1305E20
  • Category
    Power Management - DC2DC
  • Application
    IoT/Emerging

The WD1305E20 is a high efficiency, 500 kHz switch frequency, synchronous step-down DC-DC converter with delivering 2A current capability. The WD1305E20 operates over a wide input voltage range from 4.5V to 18V and integrates main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss.

The WD1305E20 applies Constant-on-time (COT) control mode which provides very fast load transient response and easy loop design. The WD1305E20 integrates full protections features including short-circuit protection, over-current protection, under voltage protection and thermal shutdown to make the part operating safely.

The WD1305E20 is available in SOT-23-6L package. Standard product is Pb-free and Halogen-free.

Applications
– Set Top Box
– Access Point Router
– DSL Modem, Security Cameras
– Flat-Panel Televisions and Monitors

Wide input voltage range of 4.5V to 18V

Integrate 140 mΩ (High Side) / 110 mΩ (Low Side)
Low RDS (ON) Power MOSFETs

70 μA Low Quiescent Current

High-efficiency synchronous-mode Operation

Power save mode at light load

Fast load transient response with COT control mode

Over-current protection and Hiccup

Output adjustable from 0.6V

  • Spec
    WD1305E20
  • Vin Min(V)
    4.5
  • Vin Max(V)
    18
  • Iq(uA)
    70
  • Input OVP(V)
    19
  • Output Current / Current Limit(A)
    2
  • Freqency (KHz)
    500
  • Output OVP(V)
    NA
  • PFM Mode at Light Load
    YES