* SPICE netlist
C1 N014 N008 5.6n
C2 N010 N014 3.3n
R2 0 N006 34K
R3 N006 N014 32.4K
C3 N009 N013 10n
R4 N001 N004 470
C4 N004 N014 .1
C5 0 OUT 100
C6 N006 N014 1n
R6 OUT N007 75K
R7 N012 N014 10m
V1 N014 0 -5.2
R8 N013 N014 10
MQ1 OUT N009 N012 N012 IRF7413
V2 N001 0 3.3
R9 N002 N001 2K
MQ2 N002 N003 0 0 BSS123
R5 N012 N011 22
S1 0 OUT N005 0 SLD
V3 N005 0 PULSE(0 1 10m 100n 100n 5m 10)
XU1 N004 N003 N010 N011 N014 N009 N007 N006 N006 N008 LTC4214-1 ;pnba Vin)_PWRGD)SS)Sense)Vee)Gate)Drain)OV)UV)Timer
.tran 20m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1408 800
WIRE -96 -384 -704 -384
WIRE -32 -384 -96 -384
WIRE 224 -384 48 -384
WIRE -704 -368 -704 -384
WIRE 224 -368 224 -384
WIRE 176 -288 112 -288
WIRE -704 -272 -704 -288
WIRE -608 -240 -704 -240
WIRE 224 -240 224 -272
WIRE 224 -240 -608 -240
WIRE 272 -240 224 -240
WIRE 384 -240 272 -240
WIRE -704 -224 -704 -240
WIRE -96 -224 -96 -384
WIRE -608 -208 -608 -240
WIRE 272 -160 272 -240
WIRE 384 -160 384 -240
WIRE 448 -144 432 -144
WIRE -96 -128 -96 -144
WIRE -96 -128 -416 -128
WIRE -96 -112 -96 -128
WIRE 608 -96 432 -96
WIRE 704 -96 688 -96
WIRE -608 -64 -608 -128
WIRE -496 -64 -608 -64
WIRE -272 -64 -496 -64
WIRE -240 -64 -272 -64
WIRE 112 -64 112 -288
WIRE 112 -64 48 -64
WIRE -416 16 -416 -128
WIRE -272 16 -272 -64
WIRE -240 16 -272 16
WIRE 160 16 48 16
WIRE 272 16 272 -96
WIRE 272 16 240 16
WIRE 384 16 384 -80
WIRE 384 16 272 16
WIRE 512 16 384 16
WIRE -608 64 -608 -64
WIRE -240 96 -336 96
WIRE 112 96 48 96
WIRE 336 96 112 96
WIRE -496 128 -496 -64
WIRE -240 176 -304 176
WIRE 224 176 48 176
WIRE 384 176 384 112
WIRE 384 176 304 176
WIRE -304 192 -304 176
WIRE 112 192 112 160
WIRE -608 288 -608 144
WIRE -608 288 -704 288
WIRE -496 288 -496 192
WIRE -496 288 -608 288
WIRE -416 288 -416 80
WIRE -416 288 -496 288
WIRE -336 288 -336 160
WIRE -336 288 -416 288
WIRE -304 288 -304 256
WIRE -304 288 -336 288
WIRE -96 288 -96 224
WIRE -96 288 -304 288
WIRE 112 288 112 272
WIRE 112 288 -96 288
WIRE 384 288 384 256
WIRE 384 288 112 288
WIRE -704 304 -704 288
WIRE -704 400 -704 384
FLAG 512 16 OUT
FLAG -704 -224 0
FLAG -704 400 0
FLAG -704 -272 0
FLAG 704 -96 0
FLAG 448 -144 0
SYMBOL cap -352 160 M180
SYMATTR InstName C1
SYMATTR Value 5.6n
SYMBOL cap -320 192 R0
SYMATTR InstName C2
SYMATTR Value 3.3n
SYMBOL res -624 -224 R0
SYMATTR InstName R2
SYMATTR Value 34K
SYMBOL res -624 48 R0
SYMATTR InstName R3
SYMATTR Value 32.4K
SYMBOL cap 96 96 R0
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL res -112 -240 R0
SYMATTR InstName R4
SYMATTR Value 470
SYMBOL cap -432 16 R0
SYMATTR Value .1
SYMATTR InstName C4
SYMBOL cap 256 -160 R0
SYMATTR InstName C5
SYMATTR Value 100
SYMBOL cap -512 128 R0
SYMATTR Value 1n
SYMATTR InstName C6
SYMBOL res 256 0 R90
SYMATTR InstName R6
SYMATTR Value 75K
SYMBOL res 368 160 R0
SYMATTR InstName R7
SYMATTR Value 10m
SYMBOL voltage -704 288 R0
SYMATTR InstName V1
SYMATTR Value -5.2
SYMBOL res 96 176 R0
SYMATTR Value 10
SYMATTR InstName R8
SYMBOL nmos 336 16 R0
SYMATTR InstName Q1
SYMATTR Value IRF7413
SYMBOL voltage -704 -384 R0
SYMATTR InstName V2
SYMATTR Value 3.3
SYMBOL res 64 -400 R90
SYMATTR InstName R9
SYMATTR Value 2K
SYMBOL nmos 176 -368 R0
SYMATTR InstName Q2
SYMATTR Value BSS123
SYMBOL res 320 160 R90
SYMATTR InstName R5
SYMATTR Value 22
SYMBOL sw 384 -176 M0
SYMATTR InstName S1
SYMATTR Value SLD
SYMBOL voltage 592 -96 R270
SYMATTR InstName V3
SYMATTR Value PULSE(0 1 10m 100n 100n 5m 10)
SYMBOL LTC4214-1 -96 64 R0
SYMATTR InstName U1