Version 4 SHEET 1 948 680 WIRE 352 -208 -240 -208 WIRE -448 -80 -576 -80 WIRE -240 -80 -240 -208 WIRE -240 -80 -448 -80 WIRE -192 -80 -240 -80 WIRE 352 -80 352 -208 WIRE 352 -80 160 -80 WIRE 416 -80 352 -80 WIRE 496 -80 480 -80 WIRE -576 -64 -576 -80 WIRE -448 -64 -448 -80 WIRE 352 -64 352 -80 WIRE -192 -16 -352 -16 WIRE 352 0 352 -16 WIRE -448 16 -448 0 WIRE -576 32 -576 16 WIRE -240 48 -240 -80 WIRE -192 48 -240 48 WIRE 384 48 160 48 WIRE 496 48 496 -80 WIRE 496 48 448 48 WIRE -240 112 -240 48 WIRE -192 112 -240 112 WIRE 176 112 160 112 WIRE 272 112 256 112 WIRE -192 176 -240 176 WIRE 192 240 160 240 WIRE -240 320 -240 176 WIRE -16 320 -16 288 WIRE -16 320 -240 320 WIRE 192 320 192 240 WIRE 192 320 -16 320 WIRE 272 320 272 112 WIRE 272 320 192 320 WIRE -16 352 -16 320 WIRE -352 400 -352 -16 WIRE 496 400 496 48 WIRE 496 400 -352 400 FLAG -576 32 0 FLAG -16 352 0 FLAG -576 -80 BATT FLAG -448 16 0 FLAG 352 0 0 SYMBOL PowerProducts\\LTM8042 -16 80 R0 SYMATTR InstName U1 SYMBOL voltage -576 -80 R0 WINDOW 3 23 103 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value 25.2 SYMATTR InstName V1 SYMBOL res 160 128 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 6.04k SYMBOL cap 416 -64 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName Cout SYMATTR Value 4.7µ SYMATTR SpiceLine Rser=.010 SYMBOL LED 384 64 R270 WINDOW 123 -21 32 VBottom 2 WINDOW 0 72 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR Value2 N=2 SYMATTR InstName D1 SYMATTR Value LUW-W5AP SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -464 -64 R0 SYMATTR InstName Cvcc SYMATTR Value 1µ SYMBOL cap 368 0 R180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName Cin SYMATTR Value 2.2µ TEXT 352 256 Left 0 !.tran 2m TEXT -8 -248 Bottom 2 ;Buck mode\nInput: 6-25.2V \nOutput: 1A (one or two LEDs)\nfsw = 2000kHz (Rt = 6.04k)\nfsw = 1000kHz (RT = 15.8k)