Version 4
SHEET 1 880 680
WIRE -48 -32 -144 -32
WIRE 32 -32 -48 -32
WIRE 176 -32 32 -32
WIRE -144 -16 -144 -32
WIRE 176 -16 176 -32
WIRE -48 32 -48 -32
WIRE 32 32 32 -32
WIRE 48 32 32 32
WIRE 336 32 304 32
WIRE 448 32 416 32
WIRE 560 32 448 32
WIRE 656 32 560 32
WIRE 448 48 448 32
WIRE 560 48 560 32
WIRE 656 48 656 32
WIRE -144 80 -144 64
WIRE -48 128 -48 112
WIRE 48 128 -48 128
WIRE 448 128 304 128
WIRE 448 144 448 128
WIRE 560 144 560 112
WIRE 656 144 656 128
WIRE -16 224 -112 224
WIRE 48 224 -16 224
WIRE 320 224 304 224
WIRE -112 240 -112 224
WIRE -16 240 -16 224
WIRE 448 240 448 224
WIRE -112 336 -112 320
WIRE -16 336 -16 304
FLAG 320 224 0
FLAG -16 336 0
FLAG -112 336 0
FLAG 448 240 0
FLAG 560 144 0
FLAG -144 80 0
FLAG 656 32 OUT
FLAG -144 -32 IN
FLAG 656 144 0
SYMBOL voltage -144 -32 R0
SYMATTR InstName V1
SYMATTR Value 4.2
SYMBOL ind 320 48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 1.5µ
SYMBOL res -128 224 R0
SYMATTR InstName R1
SYMATTR Value 116K
SYMBOL cap -32 240 R0
SYMATTR InstName C1
SYMATTR Value 1000p
SYMBOL res 432 32 R0
SYMATTR InstName R2
SYMATTR Value 1210K
SYMBOL res 432 128 R0
SYMATTR InstName R3
SYMATTR Value 255K
SYMBOL cap 544 48 R0
SYMATTR InstName C2
SYMATTR Value 100µ
SYMBOL LTC3606B 176 128 R0
SYMATTR InstName U1
SYMBOL res -64 16 R0
SYMATTR InstName R4
SYMATTR Value 499K
SYMBOL res 640 32 R0
SYMATTR InstName Rload
SYMATTR Value 20
TEXT 360 304 Left 2 !.tran 1.5m startup