18V Operation 500mA Inductor Built-in Step-down “micro DC/DC” Converter
The XDL603 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 500mA can be created. An internal coil simplifies the circuit and enables minimization of noise and other operational trouble due to the circuit wiring.
XDL603 series has operating voltage range of 3.0V~18.0V and it can support 500mA 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 1.0V to 5.0V using external resistors.
They have a fixed internal soft start time which is 1.0ms(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 even with a short-circuit.
The XDL603 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||3.0V ~ 18.0V (Absolute Max 20V)|
|Output Voltage Range||1.0V ~ 5.0V|
|FB Voltage||0.75V ± 1.5%|
|Control Methods||PWM Control
Efficiency 81%@12V→5V, 300mA
|Function||Soft-start External Settings
|Protection Function||Over Current Protection
- Automatic recovery (B Type)
-Integral Latch (A Type)
|Output Capacitor||Ceramic Capacitor|
|Operating Ambient Temperature||-40℃ ~ 105℃|
|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|