RT7238B/C/D GQUF Evaluation Board your power partner. Bill of Materials Reference Q'ty Part Number Description Package Manufacture C3, C4 2 C1608X5R0J475KT000N 4.7µF/6.3V/0603/X5R 0603 TDK L1 1 7443340100 1µH for RT7238D 2.2µH for RT7238B/C 8 x 8 x 7.5 mm GOTREND C6, C9 2 C1608X7R1H104KT000N 0.1µF/50V/0603/X5R 0603 TDK C8, C10 2 GRM31CR61A226KE19L 22µF/25V/1206/X5R 1206 muRata C11, C12, C13, C14 4 C3225X5R1E226MT 22µF/25V/1210/X5R 1210 TDK BYP/EN2/VCC 1 Gold PIN Gold PIN Gold PIN Gold PIN LDO/VCC/LDO 1 Gold PIN Gold PIN Gold PIN Gold PIN J1, J2, J3, J4 4 Connector Connector Connector Connector GND 2 Gold PIN Gold PIN Gold PIN Gold PIN JP1 ,JP2, J6 3 Jumper Jumper Jumper Jumper R1, R2, R8, R10, R12, R15, R16 7 Shorted Shorted Shorted Shorted R3, R7 2 0603 100K 1% 100kΩ/0603/1% 0603 WALSIN R6, R13 2 0603 360K 1% 1mΩ/0603/1% 0603 WALSIN R4 1 0603 15K0 1% Shorted for RT7238B/C 15kΩ/0603/1% for RT7238D (VOUT 1.05V) 0603 WALSIN R5 1 0603 20K0 1% 20kΩ/0603/1% 0603 WALSIN SW1 1 SWITCHES SWITCHES SWITCHES SWITCHES EN1/EN/EN, PG, FB/FB/ILMIT, BS, LX 5 Test PIN Test PIN Test PIN Test PIN U1 1 RT7238B/C/D RT7238B/C/D UQFN-10L 3x3 (FC) RICHTEK More Information For more information, please find the related datasheet or application notes from Richtek website http://www.richtek.com. Important Notice for Richtek Evaluation Board THIS DOCUMENT IS FOR REFERENCE ONLY, NOTHING CONTAINED IN THIS DOCUMENT SHALL BE CONSTRUED AS RICHTEK’S WARRANTY, EXPRESS OR IMPLIED, UNDER CONTRACT, TORT OR STATUTORY, WITH RESPECT TO THE PRESENTATION HEREIN. IN NO EVENT SHALL RICHTEK BE LIABLE T O BUYER OR USER FOR ANY AND ALL DAMAGES INCLUDING WITHOUT LIMITATION TO DIRECT, INDIRECT, SPECIAL, PUNITIVE OR CONSEQUENTIAL DAMAGES. RT7238B/C/D GQUF-00 October 2015 1 http://www.richtek.com