CategoryPower Management - DC2DC GROUP
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.
– 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
Vin Min(V)4, 5
Output Current / Current Limit(A)2
PFM Mode at Light LoadYES