* SPICE netlist
C1 N013 N007 5.6n
C2 N009 N013 3.3n
R2 0 N005 34K
R3 N005 N013 32.4K
C3 N008 N012 10n
R4 N001 N003 470
C4 N003 N013 .1
C5 0 OUT 100
C6 N005 N013 1n
R6 OUT N006 75K
R7 N011 N013 10m
V1 N013 0 -5.2
R8 N012 N013 10
MQ1 OUT N008 N011 N011 IRF7413
XU1 N003 N002 N009 N010 N013 N008 N006 N005 N005 N007 LTC4214-2 ;pnba Vin)_PWRGD)SS)Sense)Vee)Gate)Drain)OV)UV)Timer
V2 N001 0 3.3
R9 EN N001 2K
MQ2 EN N002 0 0 BSS123
R5 N011 N010 22
S1 0 OUT N004 0 SLD
V3 N004 0 PULSE(0 1 10m 100n 100n 5m 10)
.tran 25m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1440 784
WIRE -112 -376 -720 -376
WIRE -48 -376 -112 -376
WIRE 208 -376 32 -376
WIRE -720 -360 -720 -376
WIRE 208 -344 208 -376
WIRE -720 -264 -720 -280
WIRE 160 -264 96 -264
WIRE -624 -232 -720 -232
WIRE 208 -232 208 -248
WIRE 208 -232 -624 -232
WIRE 256 -232 208 -232
WIRE 384 -232 256 -232
WIRE -720 -216 -720 -232
WIRE -112 -216 -112 -376
WIRE -624 -200 -624 -232
WIRE 256 -152 256 -232
WIRE 384 -152 384 -232
WIRE 448 -136 432 -136
WIRE -112 -120 -112 -136
WIRE -112 -120 -432 -120
WIRE -112 -104 -112 -120
WIRE 608 -88 432 -88
WIRE 720 -88 688 -88
WIRE -624 -56 -624 -120
WIRE -512 -56 -624 -56
WIRE -288 -56 -512 -56
WIRE -256 -56 -288 -56
WIRE 96 -56 96 -264
WIRE 96 -56 32 -56
WIRE -432 24 -432 -120
WIRE -288 24 -288 -56
WIRE -256 24 -288 24
WIRE 144 24 32 24
WIRE 256 24 256 -88
WIRE 256 24 224 24
WIRE 384 24 384 -72
WIRE 384 24 256 24
WIRE 512 24 384 24
WIRE -624 72 -624 -56
WIRE -256 104 -352 104
WIRE 96 104 32 104
WIRE 336 104 96 104
WIRE -512 136 -512 -56
WIRE -256 184 -320 184
WIRE 208 184 32 184
WIRE 384 184 384 120
WIRE 384 184 288 184
WIRE -320 200 -320 184
WIRE 96 200 96 168
WIRE -624 280 -624 152
WIRE -624 280 -720 280
WIRE -512 280 -512 200
WIRE -512 280 -624 280
WIRE -432 280 -432 88
WIRE -432 280 -512 280
WIRE -352 280 -352 168
WIRE -352 280 -432 280
WIRE -320 280 -320 264
WIRE -320 280 -352 280
WIRE -112 280 -112 232
WIRE -112 280 -320 280
WIRE 96 280 -112 280
WIRE 384 280 384 264
WIRE 384 280 96 280
WIRE -720 296 -720 280
WIRE -720 392 -720 376
FLAG 512 24 OUT
FLAG -720 -216 0
FLAG -720 392 0
FLAG -720 -264 0
FLAG 208 -376 EN
FLAG 720 -88 0
FLAG 448 -136 0
SYMBOL cap -368 168 M180
SYMATTR InstName C1
SYMATTR Value 5.6n
SYMBOL cap -336 200 R0
SYMATTR InstName C2
SYMATTR Value 3.3n
SYMBOL res -640 -216 R0
SYMATTR InstName R2
SYMATTR Value 34K
SYMBOL res -640 56 R0
SYMATTR InstName R3
SYMATTR Value 32.4K
SYMBOL cap 80 104 R0
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL res -128 -232 R0
SYMATTR InstName R4
SYMATTR Value 470
SYMBOL cap -448 24 R0
SYMATTR Value .1
SYMATTR InstName C4
SYMBOL cap 240 -152 R0
SYMATTR InstName C5
SYMATTR Value 100
SYMBOL cap -528 136 R0
SYMATTR Value 1n
SYMATTR InstName C6
SYMBOL res 240 8 R90
SYMATTR InstName R6
SYMATTR Value 75K
SYMBOL res 368 168 R0
SYMATTR InstName R7
SYMATTR Value 10m
SYMBOL voltage -720 280 R0
SYMATTR InstName V1
SYMATTR Value -5.2
SYMBOL res 80 184 R0
SYMATTR Value 10
SYMATTR InstName R8
SYMBOL nmos 336 24 R0
SYMATTR InstName Q1
SYMATTR Value IRF7413
SYMBOL LTC4214-2 -112 72 R0
SYMATTR InstName U1
SYMBOL voltage -720 -376 R0
SYMATTR InstName V2
SYMATTR Value 3.3
SYMBOL res 48 -392 R90
SYMATTR InstName R9
SYMATTR Value 2K
SYMBOL nmos 160 -344 R0
SYMATTR InstName Q2
SYMATTR Value BSS123
SYMBOL res 304 168 R90
SYMATTR InstName R5
SYMATTR Value 22
SYMBOL sw 384 -168 M0
SYMATTR InstName S1
SYMATTR Value SLD
SYMBOL voltage 592 -88 R270
SYMATTR InstName V3
SYMATTR Value PULSE(0 1 10m 100n 100n 5m 10)