18V Operation 500mA Synchronous Step-Down DC/DC Converters
The XD9263 series are synchronous step-down DC/DC converter ICs. The XD9263 series have operating voltage range of 3V~18V and switching frequency is 2.2 MHz and it can support 500mA as an output current with high-efficiency. Compatible with Low ESR capacitors such as ceramic capacitors for the output capacitor.
0.75V reference voltage source is incorporated in the IC, and the output voltage can be set to a value from 1.0V to 15.0V using external resistors.
XD9263 has a fixed internal Soft Start time which is 1.0ms (TYP.), additionally the time can be extended by using an external resistor and capacitor
UVLO and over current protection and short-circuit protection and thermal shutdown are embedded and they secure a safety operation. As an option, timer latch off over current protection (Integral Latch Method) can be selected.
Typical Application Circuit
|Input Voltage Range||3.0V ~ 18.0V (Absolute Max 20V)|
|Output Voltage Range||1.0V ~ 15.0V|
|FB Voltage||0.75V ± 1.5% (Ta=25℃)|
|Control Methods||PWM control
Efficiency 85%@12V→5V, 300mA
|Function||Soft-Start External settings
Power Good (USP-6C Package only)
|Protect Function||Over Current Protection
・Automatic Recovery (XD9263D/XD9264D)
・Integral Latch Method (XD9263C/XD9264C)
|Output Capacitor||Ceramic Capacitor|
|Operating Ambient Temperature||-40℃ ~ 105℃|
|Environmentally Friendly||EU RoHS Compliant, Pb Free|
|Package||SOT-25||Number of Pins||5|
|Pcs/Reel||3,000||Package Size(mm)||2.8 x 2.9 x 1.3|
|Package||USP-6C||Number of Pins||6|
|Pcs/Reel||3,000||Package Size(mm)||1.8 x 2.0 x 0.6|