Ceramic Cap. Compatible Step-up DC/DC Controllers

The XC9103 series are PWM, PWM/PFM auto switching /manual switching controlled multi-functional step-up DC/DC controllers.

Output will be stable no matter which load capacitors are used but should a low ESR capacitor be used, RSENSE of about 0.1Ω will be required and phase compensation will be achieved. This makes the use of ceramic capacitors much easier and allows for lower output ripple and reduced PCB area requirements. Tantalum and electrolytic capacitors can also be used, in which case, RSENSE becomes unnecessary.

With 0.9V of standard voltage supply internal, and using externally connected components, output voltage can be set up freely within a range of 1.5V to 30V. With 300kHz or 180kHz frequencies, the size of the external components can be reduced. Oscillation frequencies of 100kHz and 500kHz are also available as custom-designed products.

The XC9103 offers PWM operation.


Input Voltage Range 0.9V~10V
Power Supply Voltage Range 1.8V~10V
Output Voltage Range 1.5V~30V,Can be set freely with 0.9V(±2.0V) of reference voltage supply and external registors.
Oscillation Frequency 100,180,300,500kHz(±15%)
Output Current More than 400mA(VIN=1.8V,VOUT=3.3V)
Control PWM
High Efficiency 85%(TYP.)
Stand-by Current ISTB=1.0μA(MAX.)
Load Capacitors Low ESR capacitors compatible

Typical Application Circuit

Technical Document


Package Number of Pins Pcs/Reel Package Size(mm)
SOT-25 5 3,000 2.8 x 2.9 x 1.3
USP-6B 6 3,000 1.8 x 2.0 x 0.7

XC9103 Series Part Numbers

Part number Sample Type of DC/DC Controller Output Voltage Oscillation Frequency Packages EDA Online Store
XC9103D091DR-G Without current limiter 0.9V 100kHz USP-6B
XC9103D091MR-G Without current limiter 0.9V 100kHz SOT-25
XC9103D092DR-G Without current limiter 0.9V 180kHz USP-6B
XC9103D092MR-G Without current limiter 0.9V 180kHz SOT-25
XC9103D093DR-G Without current limiter 0.9V 300kHz USP-6B
XC9103D093MR-G Without current limiter 0.9V 300kHz SOT-25
XC9103D095DR-G Without current limiter 0.9V 500kHz USP-6B
XC9103D095MR-G Without current limiter 0.9V 500kHz SOT-25

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