AP1609-EV Application Note AP1609 Application Information and Demo Board User Guide . Contents 1. Description 2. Schematic 3. PCB Layout 4. Bill of Materials This application note contains new product information. Diodes, Inc. reserves the right to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. 1/3 Rev. A MAY 2010 www.diodes.com Diodes Incorporated AP1609-EV Application Note AP1609 Application Information and Demo Board User Guide 1. Description The AP1609(Boost) evaluation modules (EVM) provide a means for the user to evaluate quickly the functionality and electrical performance of the AP1609 device. All inputs and outputs are brought out to test points for control and monitoring. All passive components are included on the EVM for device operation. The input pin should be connected to an external supply; the output should be connected to a load. 2. EVM Schematic VOUT=VFB*(1+R1/R2), R2=10kΩ~100kΩ Figure 1.STEP-UP DC/DC CONVERTER This application note contains new product information. Diodes, Inc. reserves the right to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. 2/3 Rev. A MAY 2010 www.diodes.com Diodes Incorporated AP1609-EV Application Note AP1609 Application Information and Demo Board User Guide 3. Board Layout(Boost) Top Side Bottom Side 4. Bill of Materials BOM: Component Location Quantity Specification C3,C5 2 C2,C4,C6 3 C7 1 D1 1 J1(VIN) 1 Cap 100uF 25V Cap MLCC 0.1uF/50V/X7R SMD Cap MLCC 3.3uF/10V/X7R SMD 2A/40V,SMD schottky diode Header_1 Mark Maker Part No. Size TEAPO DSJ107MO25S1A5G07K - TAIYO YUDEN UMK212B7104KG-T C0805 TAIYO YUDEN LMK212B7335KG-T C0805 Diodes Inc. B240A SMA - - 2.2X1.35mm J2(VOUT) 1 Header_1 - - 2.2X1.35mm J3,J4(GND) 2 Header_1 - - 2.2X1.35mm SW1(Bottom) 1 short to Vcc - - - L1 1 10uH/ 3.5A SMD TREND - - R1 1 Res,160K,1% SMD YAGEO - R0805 R2 1 Res,18K,1% SMD YAGEO - R0805 R3 1 Res, 100Ω,1% SMD YAGEO - R0805 R4 1 Res,330KΩ,1% SMD YAGEO - R0805 U1 1 AP1609 Diodes Inc. - SOP-8L PCB 1 AP1609 EV Board Diodes Inc. TDB0014 48mmX31mm This application note contains new product information. Diodes, Inc. reserves the right to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. 3/3 Rev. A MAY 2010 www.diodes.com Diodes Incorporated