+1 -1

hardware/circuit.kicad_pcb

View file Reviewed

··· 2101 2101 ) 2102 2102 ) 2103 2103 ) 2104 2104 - (property "LCSC Part" "C2041623" 2104 2104 + (property "LCSC Part" "C2045367" 2105 2105 (at 0 0 180) 2106 2106 (unlocked yes) 2107 2107 (layer "F.Fab")

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hardware/circuit.py

View file Reviewed

··· 146 146 gnd += r_uvlo_3s_lo[2] 147 147 148 148 l_buck = Part("Device", "L_Small", ref="L1", value="4.7uH", footprint="Inductor_SMD:L_Wuerth_MAPI-4020") 149 149 - l_buck.lcsc = "C2041623" 150 150 - l_buck.info = "Bourns SRP4020TA-4R7M: 4.7uH, Isat 3.5A, Irms 2.6A, DCR 95mΩ, low-profile 4020-class inductor. AP63205 full 2A operation asks for about 2.7A current headroom; this is acceptable for the expected carrier load but review if the 5V rail will be loaded near 2A continuously." 149 149 + l_buck.lcsc = "C2045367" 150 150 + l_buck.info = "Wurth Elektronik 74438356047 / WE-MAPI-4020: 4.7uH, Irms 2.9A, Isat 4.7A, DCR 76mΩ, SMD 4.1x4.1mm package matching the KiCad Inductor_SMD:L_Wuerth_MAPI-4020 land pattern. AP63205 full 2A operation asks for about 2.7A current headroom; this is acceptable for the expected carrier load but review if the 5V rail will be loaded near 2A continuously." 151 151 design_intent(l_buck, "Buck output inductor from AP63205 SW node to 5V rail.", group="5V buck", placement="Place adjacent to U2 SW pin; keep SW node short and away from SPI/IMU routes.") 152 152 sw += l_buck[1] 153 153 v5 += l_buck[2]

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hardware/schm/power.kicad_sch

View file Reviewed

··· 5218 5218 ) 5219 5219 ) 5220 5220 ) 5221 5221 - (property "LCSC Part" "C2041623" 5221 5221 + (property "LCSC Part" "C2045367" 5222 5222 (at 62.23 5.08 0) 5223 5223 (hide yes) 5224 5224 (show_name no)