WS34063A DC TO DC CONVERTOR CONTROLLER WS34063 Series is a monolithic control circuit ! DC c"#"$ %%$$ $$$&"$% "&#& $$'% &"$"$& '($ !" !" !" )*+ !" -. ,&' !$ !" )& Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com / 0-/1)- -0;= ! " #$% & *+3*AP / 0- WS 45 *+3*AD /1)- WS 45 !" )"$6'$ !" 789:89 Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: [email protected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onverter Controller PAD LOCATION WS34063A (NEW DESIGN) 1 1 8 2 7 6 3 4 5 Chip Size: 1.72X1.82 mm PAD No. PAD NAME 1 2 3 4 5 6 7 8 Switch Collector *1 Switch Emitter *1 Timing Capacitor GND Comparator Inverting Input VCC IPK Sense Driver Collector *1: Two wires must be connected to 1 and 2 pin WS34063A DC TO DC CONVERTER CONTROLLER 8 NOTES: 1. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 2. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS). 3. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 5 –B– 1 4 F –A– NOTE 2 L C J –T– N SEATING PLANE D H M K G 0.13 (0.005) M T A M B Attention: M=10 M o DIM A B C D F G H J K L M N MILLIMETERS MIN MAX 9.40 10.16 6.10 6.60 3.94 4.45 0.38 0.51 1.02 1.78 2.54 BSC 0.76 1.27 0.20 0.30 2.92 3.43 7.62 BSC ––– 10_ 0.76 1.01 INCHES MIN MAX 0.370 0.400 0.240 0.260 0.155 0.175 0.015 0.020 0.040 0.070 0.100 BSC 0.030 0.050 0.008 0.012 0.115 0.135 0.300 BSC ––– 10_ 0.030 0.040