Version 4
SHEET 1 1052 680
WIRE 48 0 -128 0
WIRE 176 0 48 0
WIRE 320 0 176 0
WIRE 384 0 320 0
WIRE 512 0 464 0
WIRE 592 0 512 0
WIRE 720 0 656 0
WIRE 768 0 720 0
WIRE 864 0 768 0
WIRE -128 16 -128 0
WIRE 512 16 512 0
WIRE 768 16 768 0
WIRE 864 16 864 0
WIRE 176 32 176 0
WIRE 320 32 320 0
WIRE 48 96 48 0
WIRE 96 96 48 96
WIRE 464 96 384 96
WIRE -128 112 -128 96
WIRE 768 112 768 80
WIRE 864 112 864 96
WIRE 400 176 384 176
WIRE 512 176 512 112
WIRE 512 176 480 176
WIRE 512 192 512 176
WIRE 720 224 720 0
WIRE -176 256 -240 256
WIRE -48 256 -96 256
WIRE 96 256 -48 256
WIRE 400 256 384 256
WIRE -240 272 -240 256
WIRE -48 272 -48 256
WIRE 512 288 512 272
WIRE 96 336 32 336
WIRE 720 336 720 304
WIRE 720 336 384 336
WIRE -240 352 -240 336
WIRE -48 352 -48 336
WIRE 32 352 32 336
WIRE 720 352 720 336
WIRE 32 448 32 432
WIRE 720 448 720 432
FLAG -128 112 0
FLAG -128 0 IN
FLAG 512 288 0
FLAG 864 0 OUT
FLAG -240 352 0
FLAG 32 448 0
FLAG 720 448 0
FLAG 768 112 0
FLAG -48 352 0
FLAG 400 256 0
FLAG 864 112 0
SYMBOL ADP1621 240 208 R0
WINDOW 0 0 -56 Center 2
SYMATTR InstName U1
SYMATTR Description Switcher model of ADP1621
SYMBOL res -80 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 3.65K
SYMBOL cap -256 272 R0
SYMATTR InstName C1
SYMATTR Value 6.8n
SYMBOL res 16 336 R0
SYMATTR InstName R2
SYMATTR Value 34.8K
SYMBOL res 704 336 R0
SYMATTR InstName R3
SYMATTR Value 8.45K
SYMBOL res 704 208 R0
SYMATTR InstName R4
SYMATTR Value 75K
SYMBOL res 496 176 R0
SYMATTR InstName R5
SYMATTR Value 18m
SYMBOL VOLTAGE -128 0 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL ind 368 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 4.7µ
SYMATTR SpiceLine Rser=100m
SYMBOL schottky 592 16 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS130L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 752 16 R0
SYMATTR InstName C2
SYMATTR Value 4.7µ
SYMBOL res 496 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 953
SYMBOL cap -64 272 R0
SYMATTR InstName C3
SYMATTR Value 330p
SYMBOL nmos 464 16 R0
SYMATTR InstName Q1
SYMATTR Value BSC090N03MS
SYMBOL res 848 0 R0
SYMATTR InstName Rload
SYMATTR Value 100
TEXT 448 416 Left 2 !.tran 4.5m startup