2ch. Step-Up DC/DC Controller

The XC9501 series are PWM controlled, PWM/PFM automatic switching controlled, multi-functional, dual step-up DC/DC converter controller ICs.

With 0.9V (±2.0%) of standard voltage supply internal, and using externally connected components, output voltage can be set freely on both DC/DC controllers between 1.5V to 30.0V.

With a 180kHz frequency, the size of the external components can be reduced. 100kHz, 300kHz and 500kHz switching frequencies are also available as custom-designed products.

The control of the XC9501 series can be switched between PWM control and PWM/PFM automatic switching control using external signals. Control switches from PWM to PFM during light loads when automatic switching is selected and the series is highly efficient from light loads to large output currents. Noise is easily reduced with PWM control since the witching frequency is fixed.

The XC9501 series provides the option of being able to select the control suited to the application.

Soft-start time is internally set to 10ms which offers protection against rush currents when the power is switched on and also against voltage overshoot.


Input Voltage Range0.9V~10V
Power Supply Voltage Range2.0V~10V
Output Voltage Range1.5V~30V Can be set freely with 0.9V(±2.0%) of reference voltage supply & external components.
Oscillation Frequency180kHz±15%, 300kHz、500kHz are available as custom
Output Current~200mA(VIN=1.8V,VOUT=3.3V)
FunctionsSoft-start internally set up

Typical Application Circuit

Quality Reports


Package Number of Pins Pcs/Reel Package Size(mm)
MSOP-10 10 1,000 4.9 x 3.0 x 1.16
USP-10 10 3,000 2.5 x 2.7 x 0.6

XC9501 Series Part Numbers

Part number Sample Output Voltage Oscillation Frequency Packages EDA Online Store
XC9501B091AR-G 0.9V 100kHz MSOP-10
XC9501B091DR-G 0.9V 100kHz USP-10
XC9501B092AR-G 0.9V 180kHz MSOP-10
XC9501B092DR-G 0.9V 180kHz USP-10
XC9501B093AR-G 0.9V 300kHz MSOP-10
XC9501B093DR-G 0.9V 300kHz USP-10
XC9501B095AR-G 0.9V 500kHz MSOP-10
XC9501B095DR-G 0.9V 500kHz USP-10

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