* Z:\home\khalils\Downloads\files\data\raw_asc\LTC1644.asc
* Generated by LTspice 26.0.1 for Windows.
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\SpecialFunctions\LTC1644.asy)
V5 N021 0 PULSE(0 12 5m 5m 5m 400m 450m)
Q3 N006 N009 N005 0 2N2222
R11 3Vin N009 1K
R8 N019 N012 10K
V7 3Vin 0 PULSE(0 3.3 5m 5m 5m 250m 300m)
C5 0 N010 4.7n
Rload3 N005 0 18
XU1 N021 N020 5Vout N015 N013 N014 N016 0 N011 N012 N009 N005 5Vin N001 N007 N003 3Vin 3Vout N018 N017 LTC1644 ;pnba 12Vin)VeeIN)5Vout)Timer)_ON)_Fault)_PWRGD)GND)_ResetIN)_ResetOUT)Drive)Precharge)5Vin)5Vsense)Gate)3Vsense)3Vin)3Vout)VeeOUT)12Vout
R2 N002 N007 10
MQ1 N001 N002 5Vout 5Vout IRF7413
R10 3Vin N006 12
Rload1 5Vout 0 2
R7 N016 N019 10K
C6 N017 0 10
R9 N010 N009 18
R13 N018 0 150
V1 N019 0 5
R5 3Vin N003 5m
MQ2 N003 N004 3Vout 3Vout IRF7413
R12 N017 0 30
Rload2 3Vout 0 0.87
R6 N014 N019 10K
R4 N004 N007 10
C2 3Vout 0 30
C4 5Vout 0 30
C3 N015 0 0.1
V2 N011 0 PWL(0 0 10m 0 +1u 3.3)
R1 5Vin N001 7m
V6 5Vin 0 PULSE(0 5 5m 5m 5m 250m 300m)
R3 N008 N007 1K
C7 N018 0 10
C1 N008 0 0.01
V4 N020 0 PULSE(0 -12 5m 5m 5m 400m 450m)
V3 N013 0 PWL(0 3.3 40m 3.3 +1u 0)
.model NPN NPN
.model PNP PNP
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.bjt
.model NMOS NMOS
.model PMOS PMOS
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.mos
.tran 550m
.lib LTC1644.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 880 680
WIRE -3584 -2000 -3600 -2000
WIRE -2720 -2000 -3584 -2000
WIRE -2704 -2000 -2720 -2000
WIRE -2608 -2000 -2624 -2000
WIRE -2544 -2000 -2608 -2000
WIRE -2272 -2000 -2448 -2000
WIRE -2144 -2000 -2272 -2000
WIRE -2016 -2000 -2144 -2000
WIRE -3600 -1984 -3600 -2000
WIRE -2272 -1984 -2272 -2000
WIRE -2144 -1984 -2144 -2000
WIRE -2464 -1904 -2464 -1952
WIRE -3600 -1888 -3600 -1904
WIRE -2272 -1888 -2272 -1920
WIRE -2144 -1888 -2144 -1904
WIRE -3584 -1792 -3600 -1792
WIRE -3168 -1792 -3584 -1792
WIRE -3152 -1792 -3168 -1792
WIRE -3056 -1792 -3072 -1792
WIRE -3024 -1792 -3056 -1792
WIRE -2832 -1792 -2928 -1792
WIRE -2272 -1792 -2832 -1792
WIRE -2144 -1792 -2272 -1792
WIRE -3600 -1776 -3600 -1792
WIRE -2272 -1776 -2272 -1792
WIRE -2144 -1776 -2144 -1792
WIRE -2944 -1696 -2944 -1744
WIRE -3600 -1680 -3600 -1696
WIRE -2272 -1680 -2272 -1712
WIRE -2144 -1680 -2144 -1696
WIRE -3520 -1568 -3632 -1568
WIRE -3472 -1568 -3520 -1568
WIRE -3312 -1568 -3376 -1568
WIRE -3168 -1568 -3168 -1792
WIRE -3168 -1568 -3232 -1568
WIRE -2944 -1568 -2944 -1616
WIRE -2464 -1568 -2464 -1824
WIRE -2464 -1568 -2944 -1568
WIRE -2416 -1568 -2464 -1568
WIRE -2272 -1568 -2336 -1568
WIRE -3632 -1552 -3632 -1568
WIRE -2272 -1552 -2272 -1568
WIRE -3424 -1472 -3424 -1504
WIRE -3344 -1472 -3424 -1472
WIRE -3168 -1472 -3168 -1568
WIRE -3168 -1472 -3264 -1472
WIRE -2272 -1472 -2272 -1488
WIRE -3632 -1456 -3632 -1472
WIRE -2016 -1440 -2016 -2000
WIRE -2016 -1440 -2480 -1440
WIRE -3424 -1408 -3424 -1472
WIRE -2368 -1408 -3424 -1408
WIRE -3168 -1376 -3168 -1472
WIRE -3056 -1376 -3056 -1792
WIRE -2944 -1376 -2944 -1568
WIRE -2832 -1376 -2832 -1792
WIRE -2720 -1376 -2720 -2000
WIRE -2608 -1376 -2608 -2000
WIRE -2480 -1376 -2480 -1440
WIRE -3248 -1296 -3280 -1296
WIRE -2368 -1264 -2368 -1408
WIRE -2368 -1264 -2400 -1264
WIRE -2336 -1264 -2368 -1264
WIRE -2240 -1264 -2256 -1264
WIRE -2160 -1264 -2176 -1264
WIRE -3520 -1232 -3520 -1568
WIRE -3248 -1232 -3520 -1232
WIRE -3568 -1168 -3584 -1168
WIRE -3248 -1168 -3488 -1168
WIRE -2272 -1152 -2400 -1152
WIRE -3248 -1104 -3376 -1104
WIRE -3568 -1040 -3584 -1040
WIRE -3376 -1040 -3376 -1104
WIRE -3376 -1040 -3488 -1040
WIRE -3248 -1040 -3360 -1040
WIRE -2384 -1040 -2400 -1040
WIRE -3248 -976 -3280 -976
WIRE -2272 -960 -2272 -1152
WIRE -3360 -928 -3360 -1040
WIRE -2928 -912 -2928 -928
WIRE -2848 -912 -2928 -912
WIRE -2528 -912 -2528 -928
WIRE -2448 -912 -2528 -912
WIRE -2848 -896 -2848 -912
WIRE -2448 -896 -2448 -912
WIRE -2928 -880 -2928 -912
WIRE -2528 -880 -2528 -912
WIRE -3280 -864 -3280 -976
WIRE -2928 -784 -2928 -816
WIRE -2848 -784 -2848 -816
WIRE -2848 -784 -2928 -784
WIRE -2528 -784 -2528 -816
WIRE -2448 -784 -2448 -816
WIRE -2448 -784 -2528 -784
WIRE -2928 -768 -2928 -784
WIRE -2528 -768 -2528 -784
WIRE -3472 -704 -3488 -704
WIRE -3360 -704 -3360 -848
WIRE -3360 -704 -3392 -704
WIRE -3280 -704 -3280 -784
WIRE -3280 -704 -3360 -704
WIRE -2272 -704 -2272 -880
WIRE -2272 -704 -3280 -704
WIRE -2704 -672 -2704 -928
WIRE -3104 -560 -3104 -928
WIRE -2704 -560 -2704 -592
WIRE -3104 -448 -3104 -480
SYMBOL res -3216 -1584 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 12
SYMBOL res -3168 -1776 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 5m
SYMBOL res -2288 -864 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R8
SYMATTR Value 10K
SYMBOL res -3648 -1568 R0
SYMATTR InstName Rload3
SYMATTR Value 18
SYMBOL voltage -3600 -2000 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value PULSE(0 5 5m 5m 5m 250m 300m)
SYMBOL cap -2288 -1776 R0
SYMATTR InstName C2
SYMATTR Value 30
SYMBOL nmos -3024 -1744 R270
WINDOW 0 54 45 VTop 2
WINDOW 3 -11 75 VLeft 2
SYMATTR InstName Q2
SYMATTR Value IRF7413
SYMBOL voltage -3472 -1168 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName V2
SYMATTR Value PWL(0 0 10m 0 +1u 3.3)
SYMBOL res -2160 -1792 R0
SYMATTR InstName Rload2
SYMATTR Value 0.87
SYMBOL nmos -2544 -1952 R270
WINDOW 0 58 42 VTop 2
WINDOW 3 -13 75 VLeft 2
SYMATTR InstName Q1
SYMATTR Value IRF7413
SYMBOL voltage -2704 -688 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR Value PULSE(0 -12 5m 5m 5m 400m 450m)
SYMATTR InstName V4
SYMBOL res -2480 -1920 R0
SYMATTR InstName R2
SYMATTR Value 10
SYMBOL cap -2544 -880 R0
SYMATTR InstName C7
SYMATTR Value 10
SYMBOL cap -2944 -880 R0
SYMATTR InstName C6
SYMATTR Value 10
SYMBOL res -3376 -944 R0
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL res -2464 -912 R0
SYMATTR InstName R13
SYMATTR Value 150
SYMBOL cap -2384 -1024 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value 0.1
SYMBOL res -2960 -1712 R0
SYMATTR InstName R4
SYMATTR Value 10
SYMBOL npn -3376 -1504 M270
WINDOW 0 99 46 VTop 2
WINDOW 3 63 43 VTop 2
SYMATTR InstName Q3
SYMATTR Value 2N2222
SYMBOL cap -2288 -1552 R0
SYMATTR InstName C1
SYMATTR Value 0.01
SYMBOL voltage -3376 -704 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -3104 -576 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR InstName V5
SYMATTR Value PULSE(0 12 5m 5m 5m 400m 450m)
SYMBOL res -3248 -1488 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 1K
SYMBOL cap -2176 -1280 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 4.7n
SYMBOL res -2720 -1984 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 7m
SYMBOL res -2320 -1584 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1K
SYMBOL res -3296 -880 R0
SYMATTR InstName R7
SYMATTR Value 10K
SYMBOL res -2240 -1280 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 18
SYMBOL res -2160 -2000 R0
SYMATTR InstName Rload1
SYMATTR Value 2
SYMBOL voltage -3472 -1040 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 74 56 VTop 2
WINDOW 39 53 56 VTop 2
SYMATTR InstName V3
SYMATTR Value PWL(0 3.3 40m 3.3 +1u 0)
SYMBOL voltage -3600 -1792 R0
SYMATTR InstName V7
SYMATTR Value PULSE(0 3.3 5m 5m 5m 250m 300m)
SYMBOL cap -2288 -1984 R0
SYMATTR InstName C4
SYMATTR Value 30
SYMBOL LTC1644 -2832 -1152 R0
SYMATTR InstName U1
SYMBOL res -2864 -912 R0
SYMATTR InstName R12
SYMATTR Value 30
FLAG -2272 -1888 0
FLAG -2144 -1888 0
FLAG -2272 -1472 0
FLAG -3584 -1040 0
FLAG -2272 -1680 0
FLAG -2144 -1680 0
FLAG -3488 -704 0
FLAG -2320 -1040 0
FLAG -3280 -1296 0
FLAG -2144 -2000 5Vout
FLAG -2144 -1792 3Vout
FLAG -3584 -1792 3Vin
FLAG -3584 -2000 5Vin
FLAG -3584 -1168 0
FLAG -2160 -1264 0
FLAG -3632 -1456 0
FLAG -3104 -448 0
FLAG -2704 -560 0
FLAG -2928 -768 0
FLAG -2528 -768 0
FLAG -3600 -1888 0
FLAG -3600 -1680 0
TEXT -2168 -768 Left 2 !.tran 550m