Version 4
SHEET 1 3436 2244
WIRE 1296 1120 1040 1120
WIRE 1472 1120 1440 1120
WIRE 1520 1120 1472 1120
WIRE 1632 1120 1600 1120
WIRE 1696 1120 1632 1120
WIRE 1792 1120 1696 1120
WIRE 1040 1136 1040 1120
WIRE 1296 1136 1296 1120
WIRE 1696 1136 1696 1120
WIRE 1792 1136 1792 1120
WIRE 1472 1152 1472 1120
WIRE 1168 1200 1136 1200
WIRE 1440 1200 1440 1120
WIRE 1440 1200 1424 1200
WIRE 1040 1232 1040 1216
WIRE 1472 1232 1472 1216
WIRE 1696 1232 1696 1200
WIRE 1792 1232 1792 1216
WIRE 1632 1280 1632 1120
WIRE 1632 1280 1424 1280
WIRE 1072 1360 1056 1360
WIRE 1168 1360 1152 1360
WIRE 1440 1360 1424 1360
WIRE 1536 1360 1504 1360
WIRE 1632 1360 1616 1360
WIRE 1296 1440 1296 1424
FLAG 1040 1232 0
FLAG 1296 1440 0
FLAG 1056 1360 0
FLAG 1472 1232 0
FLAG 1792 1232 0
FLAG 1696 1232 0
FLAG 1632 1360 0
FLAG 1040 1120 IN
SYMBOL res 1168 1344 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 70K
SYMBOL ind 1504 1136 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 100µ
SYMBOL schottky 1456 1216 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MBRS340
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage 1040 1120 R0
SYMATTR InstName V1
SYMATTR Value 20
SYMBOL cap 1504 1344 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value .033µ
SYMBOL cap 1680 1136 R0
SYMATTR InstName C2
SYMATTR Value 500µ
SYMATTR SpiceLine Rser=.1
SYMBOL res 1632 1344 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1.5K
SYMBOL PowerProducts\\LT1076-5 1296 1280 R0
SYMATTR InstName U1
SYMBOL res 1776 1120 R0
SYMATTR InstName Rload
SYMATTR Value 5
TEXT 1656 1312 Left 2 !.tran 5m startup