XDL606 Series

36V Operation, 0.6A Inductor Built-in Step-down “micro DC/DC” Converters

The XDL606 series is an ultra compact step-down DC / DC converter that integrates a coil and a control IC in one tiny package. By adding a ceramic capacitor for input / output and a resistor for output voltage setting to external parts, a power supply circuit of up to 600mA can be created. An internal coil simplifies the circuit and enables minimization of noise and other operational trouble due to the circuit wiring.

XDL606 series has operating voltage range of 3.0V~36.0V and it can support 600mA as an output current with high-efficiency. They use synchronous rectification at an operating frequency of 2.2MHz. The output voltage can be set to a value from 1.8V to 5.0V using external resistors.

They have a fixed internal soft start time which is 2.0ms(TYP.), additionally the time can be extended by using an external resistor and capacitor.The output state can be monitored using the power good function.

Over current protection, short-circuit protection and thermal shutdown are embedded and they secure a safety operation. The XD606 series employ the wettable flank plated packaging. This provides a visual indicator of solderability and lowers the inspection time.

Typical Application Circuit


Input Voltage Range 3V~36V(Absolute Max 40V)
FB Voltage 0.75V±1.5%
Oscillation Frequency 2.2MHz
Output Current 0.6A
Control Methods PWM/PFM Auto
Soft-start Time Adjustable by RC
Protection Circuits Over Current Protection
Short-circuit Protection(Automatic Return)
Functions UVLO
Thermal Shutdown
Low ESR Ceramic Capacitor Ceramic Capacitor
Environmentally Friendly EU RoHS Compliant, Pb Free


Package DFN3625-11B Number of Pins 11
Pcs/Reel 2,000 Package Size(mm) 2.5 x 3.6 x 1.6


Technical Document