Bill of Materials for the CAT4201AGEVB Evaluation Board Designator Quantity Description Value Tolerance Footprint Manufacturer Manufacturer Part Number U1 Q1 Q2 D C1 C2 1 1 1 1 1 1 High Efficiency Step-Down LED Driver PNP Bipolar Transistor NPN Bipolar Transistor Schottky Diode Ceramic Capacitor X7R Ceramic Capacitor X5R -45V / -500mA 45V / 100mA 40V / 500mA 4.7µF/ 50V 10µF / 35V 10% 10% ON Semiconductor ON Semiconductor ON Semiconductor Central Semi Murata Taiyo Yuden CAT4201TD-GT3 BC807-25LT1G BC847CLT1G CMDSH05-4 GRM32ER71H475KA88L GMK325BJ106KN-T No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes L 1 Inductor, low DCR 33µH, 0.97A 30% Sumida CDRH6D28-330 Yes Yes R1 1 SMT Resistor 1/10W, 8.2kΩ 1% R2 1 Trim Pot. 47kΩ 20% R3,R5 R4 R6 R7, R8 J1 J2 K3 2 1 1 2 1 1 1 1 1 SMT Resistor SMT Resistor SMT Resistor SMT Resistor 3 Pin Header Connector 2 Pin Header Connector 6 Pin Header Receptacle SPST Pushbutton Switch (not shown in schematic) 9V Battery Holder (optional) 1/10W, 1kΩ 1Ω / 500mW 1/10W, 47kΩ 1/10W, 10kΩ 0.1" Pitch 0.1" Pitch 0.1" Pitch 1% 5% 1% 1% - SOT-23-5 SOT-23 SOT-23 SOD-323 1210 1210 7.00mm x 7.00mm 603 7.00mm Diam 0603 1210 603 0603 - 12/18/2009 Page 1 of 1 Substitution Allowed Lead Free Yageo 9C06031A8201FKHFT Yes Yes Vishay T63YB473K Yes Yes Yageo Panasonic Yageo Yageo Tyco Tyco Tyco HDK Keystone 9T06031A1001FBHFT ERJ-P14J1R0U 9T06031A4702FBHFT 9T06031A1002FBHFT 640452-3 640452-2 535676-5 KSM0631A 1294 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes www.onsemi.com