XC9119D10AER-G

XC9119 Series ETR04008-010 1MHz, PWM Controlled, Step-Up DC/DC Converter, Ceramic Capacitor Compatible ■GENERAL DESCRIPTION The XC9119 series is 1MHz, PWM controlled step-up DC/DC converter, designed to allow the use of ceramic capacitors. With a built-in 2.0Ω switching transistor, the XC9119 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 1.0μA. ■FEATURES ■APPLICATIONS ●Organic electroluminescence display (OELD) ●Power supplies for LCDs Operating Voltage Range : 2.5V ~ 6.0V Output Voltage Range : Up to 19.5V externally set-up : Reference ●Multi-function power supplies voltage 1.0V +2.0% Oscillation Frequency : 1.0MHz±20% ON Resistance : 2.0Ω (VDD=3.6V, VDS=0.4V) Efficiency : 86% Control : PWM control (VOUT=15V, VDD=3.6V, IOUT=10mA) ■TYPICAL APPLICATION CIRCUIT VIN RSS 220kohm CIN 4.7uF CSS 0.1uF SD XBS104S14R VDD Lx CE/SS FB VSS RFB1 510kohm VOUT:15V (up to 19.5V) Ultra Small Packages : SOT-25, USP-6C Lx Limit Current : 400mA (VDD=3.6V) ■TYPICAL PERFORMANCE CHARACTERISTICS ○Efficiency vs. Output Current XC9119D10A CFB 620pF CL 10uF RFB2 36kohm : ISTB=1.0μA (MAX.) : Low ESR ceramic capacitor Efficiency: EFFI(%) L:22uH CDRH4D18C Stand-by function Load Capacitor 100 90 80 70 60 50 40 30 20 10 0 6V 5V 4.2V VIN=2.5V 3.6V 2.7V 3V o Ta=25 C 0.1 1 10 100 1000 Output Current: IOUT (mA) 1/17 XC9119 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 (BOTTOM VIEW) SOT-25 (TOP VIEW) ■PIN ASSIGNMENT PIN NUMBER SOT-25 USP-6C 1 2 3 4 5 - 2 3 1 6 4 5 PIN NAME FUNCTION Lx VSS FB CE/SS VDD NC Switch Ground Voltage Feedback Chip Enable/ Soft Start Power Input No Connection ■CE PIN FUNCTION CE/SS PIN OPERATIONAL STATE H L Operation Shut-down ■PRODUCT CLASSIFICATION ●Ordering Information XC9119D①②③④⑤-⑥(*1) DESCRIPTION DESIGNATOR ITEM SYMBOL ①② ③ Reference Voltage 10 FB voltage Oscillation Frequency A 1MHz Packages MR-G SOT-25 (3,000pcs/Reel) (Order Unit) ER-G USP-6C (3,000pcs/Reel) ④⑤-⑥ (*1) The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant. 2/17 XC9119 Series ■BLOCK DIAGRAM Phase Compensation VDD Current Limit & Feedback Error Amp. FB + + - logic - Vref with Soft-start, CE LX Buffer Driver PWM Comparator VSS Ramp Wave Generator, OSC CE/SS ■ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS Ta=25℃ UNITS VDD Pin Voltage VDD VSS - 0.3 ~ 7.0 V Lx Pin Voltage VLx VSS - 0.3 ~ 22.0 V FB Pin Voltage VFB VSS - 0.3 ~ 7.0 V CE Pin Voltage VCE VSS - 0.3 ~ 7.0 V Lx Pin Current ILx 1000 mA 250 SOT-25 Power Dissipation Pd USP-6C 760 (JESD51-7 board) (*1) 120 mW 1250 (JESD51-7 board) (*1) Operating Ambient Temperature Topr -40 ~ 85 ℃ Storage Temperature Tstg -55 ~ 125 ℃ (*1) The power dissipation figure shown is PCB mounted and is for reference only. Please refer to PACKAGING INFORMATION for the mounting condition. 3/17 XC9119 Series ■ELECTRICAL CHARACTERISTICS PARAMETER FB Voltage SYMBOL CONDITIONS VFB Line Regulation Supply Voltage - △VFB/ △VIN・VFB VDD 2.5