+5V USB | C1 (10µF) | +----| VIN (Pin1) | | +----| EN (Pin2) -- [Pull to VIN] | [L1]--+----| SW (Pin3) | | | | C3 +----> To load (3.3V) | | | +----| BST(Pin4) C2 (22µF) | | R1 | | | FB (Pin5)-+------+---> VOUT (3.3V) | R2 | GND
Typically 2x15W to 2x25W (depending on load impedance). Efficiency: >90%, reducing the need for large heat sinks. lac503p schematic
Does anyone have the full service manual or a link to a reliable PDF? I've checked some common sites but am looking for the specific layout for this model. Any help with pinouts or board-level diagrams would be much appreciated! #CarAudio #Repair #Electronics #Schematic #LAC503P #LG LG MCD503-A0U MCS503F SM - service manual - Elektrotanya +5V USB | C1 (10µF) | +----| VIN