XC9119D10A Series ETR0408 009 1MHz, PWM Controlled, Step-Up DC/DC Converter, Ceramic Capacitor Compatible GENERAL DESCRIPTION The XC9119D10A series is 1MHz, PWM controlled step-up DC/DC converter, designed to allow the use of ceramic capacitors. With a built-in 2.0 switching transistor, the XC9119D10A series can easily provide a step-up operation by using only a coil, a diode, a capacitor, and a resistor, connected externally. Since output voltage up to 19.5V (Maximum Lx operating voltage: 20V) can be derived with reference voltage supply of 1.0V (2.0%) and external components, the series can easily supply high voltage for various general-purpose power supplies, LCD panels and organic EL displays. With a high switching frequency of 1.0MHz, a low profile and small board area solution can be achieved using a chip coil and an ultra small ceramic output capacitor. With the current limit function (400mA (TYP.): VDD=3.6V), a peak current, which flows through built-in driver transistors can be limited. Soft-start time can be adjusted by external resistors and capacitors. The stand-by function enables the output to be turned off (CE L), that is, the supply current will be less than 1.0 A. FEATURES APPLICATIONS Operating Voltage Range : 2.5V ~ 6.0V Organic electroluminescence display (OELD) Output Voltage Range : Up to 19.5V externally set-up Power supplies for LCDs : Reference voltage 1.0V +2.0% Multi-function power supplies Oscillation Frequency : 1.0MHz20% ON Resistance : 2.0 (VDD=3.6V, VDS=0.4V) Efficiency : 86% (VOUT=15V, VDD=3.6V, IOUT=10mA) Control : PWM control Stand-by function : I =1.0A (MAX.) STB Load Capacitor : Low ESR ceramic capacitor Ultra Small Packages : SOT-25, USP-6C Lx Limit Current : 400mA (V =3.6V) DD TYPICAL APPLICATION CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs. Output Current XC9119D10A 100 6V 90 5V 80 4.2V 70 60 3.6V VIN=2.5V 50 3V 2.7V 40 30 20 o Ta=25 C 10 0 0.1 1 10 100 1000 Output Current: IOUT (mA) 1/18 Efficiency: EFFI(%) XC9119D10A Series PIN CONFIGURATION *The dissipation pad for the USP-6C package should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat resistance. If the pad needs to be connected to other pins, it should be connected to the VSS pin. USP-6C SOT-25 (BOTTOM VIEW) (TOP VIEW) PIN ASSIGNMENT PIN NUMBER PIN NAME FUNCTION SOT-25 USP-6C 1 2 Lx Switch 2 3 VSS Ground 3 1 FB Voltage Feedback 4 6 CE/SS Chip Enable/ Soft Start 5 4 VDD Power Input - 5 NC No Connection CE PIN FUNCTION CE/SS PIN OPERATIONAL STATE H Operation L Shut-down PRODUCT CLASSIFICATION Ordering Information (*1) XC9119D- DESIGNATOR ITEM SYMBOL DESCRIPTION Reference Voltage 10 FB voltage Oscillation Frequency A 1MHz MR SOT-25 (3,000/Reel) MR-G SOT-25 (3,000/Reel) Packages - (Order Unit) ER USP-6C (3,000/Reel) ER-G USP-6C (3,000/Reel) (*1) The -G suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant. 2/18