TLD1 Bill of Materials for 335mA output, X61 25:1 trimming U1: Texas Instruments TPS92510 [MSOP8] U2: Richtek RT9058-50GV [SOT23-3] U3: 74AHCT1G125S [SOT353] D1: 2A 40V Shottky diode [DO-214AC, Vishay SSA24 recommended] L1: 100uH [pads for Bourns SRR6028 series] All caps X5R multilayer ceramic C1: 106 35V [1206] C2: 105 10V [0603] C3: 104 10V [0603] C4: 223 6V [0603] C5: 474 6V [0603] C6: 103 6V [0603] C7: 106 35V [1206] R1: 10k [0603] R2: 10k [0603] R3: 120k [0603] R4: 330k [0603] R5: 10k [0603] R6: 1k [1206] RA: 120k [0603] RB: trim [0603] (1.2M to 1.8M) RC: 1.2 [1206] RD: 1.2 [1206]