* SPICE netlist
V1 VSYS 0 48
C2 OUT 0 150
S1 0 OUT N001 0 SHORT
V3 N001 0 PULSE(0 1 70m 1m 1m 100m)
R6 N007 N006 20K
R4 0 N005 10K
R8 N009 0 6.26K
V2 N007 0 5
V4 N008 0 2
R1 IN N004 2.1Meg
R2 N004 0 100K
R3 N005 VSYS 499K
M1 IN N002 VSYS VSYS RSS065N06
R5 OUT N003 2.1Meg
R7 N003 0 100K
C1 IN 0 0.1
XU1 IN N009 0 0 N008 N006 0 OUT N003 N005 N004 VSYS N002 MAX17526A ;pnba IN)SETI)GND)CLMODE)EN)_FLAG)_HVEN)OUT)PLIM)OVLO)UVLO)SN)GN
.tran 1 startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1392 640
WIRE -216 -320 -488 -320
WIRE -600 -256 -696 -256
WIRE -376 -256 -600 -256
WIRE -344 -256 -376 -256
WIRE -216 -256 -216 -320
WIRE -216 -256 -248 -256
WIRE -168 -256 -216 -256
WIRE -120 -256 -168 -256
WIRE -88 -256 -120 -256
WIRE 264 -256 200 -256
WIRE 424 -256 264 -256
WIRE 536 -256 424 -256
WIRE 696 -256 584 -256
WIRE -696 -240 -696 -256
WIRE -168 -240 -168 -256
WIRE 424 -240 424 -256
WIRE 536 -240 536 -256
WIRE 696 -240 696 -256
WIRE 264 -224 264 -256
WIRE 584 -224 584 -256
WIRE -168 -160 -168 -176
WIRE -696 -144 -696 -160
WIRE -488 -144 -488 -320
WIRE 424 -144 424 -176
WIRE 536 -144 536 -160
WIRE 696 -144 696 -160
WIRE -328 -128 -328 -208
WIRE -88 -128 -328 -128
WIRE 264 -128 264 -144
WIRE 264 -128 200 -128
WIRE 264 -112 264 -128
WIRE -376 -96 -376 -256
WIRE -88 -96 -376 -96
WIRE -488 -48 -488 -64
WIRE -88 -48 -488 -48
WIRE -488 -32 -488 -48
WIRE -600 0 -600 -256
WIRE 264 0 264 -32
WIRE -488 64 -488 48
WIRE -600 96 -600 80
WIRE -88 96 -600 96
WIRE 312 96 200 96
WIRE 504 96 392 96
WIRE -600 112 -600 96
WIRE 504 128 504 96
WIRE -88 144 -376 144
WIRE -376 160 -376 144
WIRE 264 176 200 176
WIRE -88 192 -152 192
WIRE 264 192 264 176
WIRE -600 224 -600 192
WIRE -152 224 -152 192
WIRE 504 224 504 208
WIRE -376 256 -376 240
WIRE -88 288 -152 288
WIRE 264 288 264 272
WIRE 264 288 200 288
WIRE -152 320 -152 288
WIRE 264 320 264 288
FLAG -696 -144 0
FLAG 424 -144 0
FLAG 536 -256 OUT
FLAG -120 -256 IN
FLAG 536 -144 0
FLAG 584 -176 0
FLAG 696 -144 0
FLAG -600 224 0
FLAG 264 320 0
FLAG 504 224 0
FLAG -376 256 0
FLAG -488 64 0
FLAG -152 224 0
FLAG -696 -256 VSYS
FLAG 264 0 0
FLAG -168 -160 0
FLAG -152 320 0
SYMBOL voltage -696 -256 R0
SYMATTR InstName V1
SYMATTR Value 48
SYMBOL cap 408 -240 R0
SYMATTR InstName C2
SYMATTR Value 150
SYMBOL sw 536 -144 R180
SYMATTR InstName S1
SYMATTR Value SHORT
SYMBOL voltage 696 -256 R0
SYMATTR InstName V3
SYMATTR Value PULSE(0 1 70m 1m 1m 100m)
SYMBOL res 408 80 R90
SYMATTR InstName R6
SYMATTR Value 20K
SYMBOL res -616 208 M180
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL res 248 176 R0
SYMATTR InstName R8
SYMATTR Value 6.26K
SYMBOL voltage 504 112 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL voltage -376 144 R0
SYMATTR InstName V4
SYMATTR Value 2
SYMBOL res -504 -160 R0
SYMATTR InstName R1
SYMATTR Value 2.1Meg
SYMBOL res -504 -48 R0
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL res -616 96 M180
SYMATTR InstName R3
SYMATTR Value 499K
SYMBOL nmos -248 -208 M270
SYMATTR InstName M1
SYMATTR Value RSS065N06
SYMBOL res 248 -240 R0
SYMATTR InstName R5
SYMATTR Value 2.1Meg
SYMBOL res 248 -128 R0
SYMATTR InstName R7
SYMATTR Value 100K
SYMBOL cap -184 -240 R0
SYMATTR InstName C1
SYMATTR Value 0.1
SYMBOL MAX17526A 56 16 R0
SYMATTR InstName U1