XC6351A Series ETR0801 004 Charge Pump Voltage Inverter IC GENERAL DESCRIPTION The XC6351A series are charge pump voltage inverter ICs that have 4 MOSFETs built in. Since highly efficient negative voltages can be generated with only 2 external capacitors connected, GaAs bias power supplies & OpAmp s negative power supplies etc., can be easily accommodated on a standard PCB. A mini-molded, 6 pin, SOT-26 and USP-6B packages provides for space saving and makes high density mounting possible. Low power consumption and high efficiency make this series perfect for use with battery operated applications. Since the IC s operations stop when output is shutdown via the CE (chip enable) function, total power consumption reduction is possible in applications which use this IC. FEATURES APPLICATIONS Operating Voltage Range : 1.2V ~ 5.0V Negative power supplies Oscillation Frequency : 120kHz Power supplies for Opamp : 35kHz ( custom ) Cellular and portable phones Low Supply Current : 310A ( TYP. ) : 100A (35kHz custom TYP.) Miniature LCD panels High Efficiency : 90% (TYP.) ( RL = 2k) PDAs Stand-by Current : 2.0A (MAX.) Various battery powered systems CE(Chip Enable) Function Operating Ambient Temperature : -30C +80C Packages : SOT-26 ,USP-6B Environmentally Friendly : EU RoHS Compliant, Pb Free TYPICAL APPLICATION CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS 1/11 XC6351A Series BLOCK DIAGRAM C1+ C1- Note: P1 N2 VIN 1. In operation, the following conditions will be repeated alternately: N3 N4 VOUT Chip P1 & N3 ON: N2 & N4 OFF CE/ Enable P1 & N3 OFF: N2 & N4 ON 2. In standby mode, P1, N3 & N4 will be ON and N2 will be OFF. Oscillator Buffer The output pin VOUT will be connected to GND. GND PRODUCT CLASSIFICATION Ordering Information (*1) XC6351A - DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION 120 120kHz Oscillation Frequency 035 35kHz (custom) MR SOT-26(3,000pcs/Reel) Packages MR-G SOT-26(3,000pcs/Reel) - Taping Type DR USP-6B(3,000pcs/Reel) DR-G USP-6B(3,000pcs/Reel) (*1) The -G suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant. PIN CONFIGURATION *The dissipation pad for the USP-6B package should be solder-plated in recommended mount pattern and C1- GND metal masking so as to enhance mounting strength and heat release. CE VIN If the pad needs to be connected to other pins, it VOUT C1+ should be connected to the VIN (No. 2) pin. PIN ASSIGNMENT PIN NUMBER SYMBOL FUNCTION SOT-26 USP-6B 1 6 GND Ground 2 5 CE/ Chip Enable (Low Active) 3 4 C1+ External Capacitor +Pin 4 3 VOUT Reverse Output 5 2 VIN Power Supply 6 1 C1- External Capacitor -Pin PIN FUNCTIOS ASSIGNMENT CE/PIN STATUS H Stand-by L Active 2/11