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The WD1304E30 is a high efficiency,760 kHz switch frequency, synchronous step-down DC-DC converter with delivering 3A current capability. The WD1304E30 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 WD1304E30 applies Constant-on-time (COT) control mode which provides very fast load transient response and easy loop design. The WD1304E30 integrates full protections features including short-circuit protection, over-current protection, under voltage protection and thermal shutdown to make the part operating safely.

The WD1304E30 is available in SOT-23-6L package. Standard product is Pb-free and Halogen-free.

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


Wide input voltage range of 4.5V to 18V

Integrate 77 mΩ (High Side) / 50 mΩ (Low Side)
Low RDS (ON) Power MOSFETs

340 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

Order Information
Ordering No. Vout(V) Package
WD1304E30-6/TR N/A SOT-23-6L