$ 513 32 0.00390625 0 5 50 Paper 2784 2048 true

t 480 960 544 960 0 1 0 0 100
w 544 864 544 928 0 0 0 0 0
t 672 960 672 1024 0 1 0 0 100
w 416 960 416 1024 2 0 0 0 0
> Vref
r 832 864 832 928 0 800 2
t 896 960 832 960 0 -1 0 0 100
r 960 928 960 864 0 800 2
t 896 960 960 960 0 -1 0 0 100
w 832 864 544 864 0 0 0 0 0
w 832 864 960 864 0 0 0 0 0
r 608 1120 608 1184 0 3280 2
t 608 1120 832 1120 0 1 0 0 100
w 768 1056 704 1056 0 0 0 0 0
w 704 1056 704 1024 0 0 0 0 0
w 768 1056 768 960 0 0 0 0 0
w 768 960 672 960 0 0 0 0 0
w 768 1056 960 1056 0 0 0 0 0
w 960 1056 960 992 0 0 0 0 0
w 832 1024 896 1024 0 0 0 0 0
w 832 1024 832 992 0 0 0 0 0
w 896 1024 896 960 0 0 0 0 0
r 832 1152 832 1216 0 4000 2
w 608 1120 608 992 0 0 0 0 0
w 608 992 544 992 0 0 0 0 0
w 832 1088 832 1024 0 0 0 0 0
w 608 1184 672 1184 0 0 0 0 0
r 1088 1088 1152 1088 0 150 2
w 544 1184 608 1184 0 0 0 0 0
r 544 1184 544 1248 0 2400 2
r 672 1184 672 1248 0 7200 2
t 608 1312 544 1312 0 1 0 0 100
t 608 1312 672 1312 0 1 0 0 100
w 544 1280 544 1248 0 0 0 0 0
w 672 1280 672 1248 0 0 0 0 0
w 544 1248 608 1248 0 0 0 0 0
w 608 1248 608 1312 0 0 0 0 0
r 672 1408 672 1440 0 800 2
c 768 1216 768 1280 0 2E-11 50 0.001
w 832 1216 768 1216 0 0 0 0 0
t 768 1280 832 1280 0 1 0 0 100
w 832 1248 832 1216 0 0 0 0 0
r 608 1376 896 1376 0 1000 2
w 544 1440 544 1344 0 0 0 0 0
w 672 1408 672 1344 0 0 0 0 0
w 672 1440 832 1440 0 0 0 0 0
w 832 1440 832 1312 0 0 0 0 0
w 672 1440 544 1440 0 0 0 0 0
w 608 1376 608 1312 0 0 0 0 0
t 896 1376 960 1376 0 1 0 0 100
w 960 1056 960 1344 0 0 0 0 0
d 992 1408 992 1056 3 0.805904783 1E-14
w 960 1056 992 1056 0 0 0 0 0
c 1024 864 1024 1056 0 2E-11 50 0.001
t 1024 1056 1088 1056 0 1 0 0 100
w 1024 864 960 864 0 0 0 0 0
w 1024 1056 992 1056 0 0 0 0 0
w 1024 864 1088 864 0 0 0 0 0
w 1088 864 1088 1024 0 0 0 0 0
r 1152 1088 1152 1152 0 10000 2
w 1152 1152 1216 1152 0 0 0 0 0
t 1152 1088 1216 1088 0 1 0 0 100
w 1216 1152 1216 1120 0 0 0 0 0
w 1248 1056 1248 864 0 0 0 0 0
d 1248 1408 1248 864 3 0.805904783 1E-14
w 1248 1056 1216 1056 0 0 0 0 0
w 1248 864 1088 864 0 0 0 0 0
w 992 1440 1216 1440 0 0 0 0 0
w 992 1440 992 1408 0 0 0 0 0
w 1248 1440 1248 1408 0 0 0 0 0
w 992 1440 960 1440 0 0 0 0 0
w 960 1440 960 1408 0 0 0 0 0
w 960 1440 832 1440 0 0 0 0 0
g 384 1440 384 1504 0
r 384 960 384 1440 0 6800 2
> R2
r 384 896 384 960 0 27675 2
> R1
w 384 1440 544 1440 1 0 0 0 0
r 288 864 384 864 0 47 10
> Rsup
R 288 864 288 800 0 0 1 12 0 0 0.5 
> Vsup
w 384 864 384 896 0 0 0 0 0
w 384 864 544 864 1 0 0 0 0
> Ik
c 1344 864 1344 1440 8 1E-05 50 0.001
> C1
w 672 1280 768 1280 0 0 0 0 0
w 1216 1440 1248 1440 0 0 0 0 0
w 1216 1152 1216 1440 0 0 0 0 0
w 416 960 384 960 0 0 0 0 0
w 416 960 480 960 0 0 0 0 0
w 416 1024 640 1024 0 0 0 0 0
162 1408 960 1408 1024 3 2.1024259 1E-14 1 0.1 0.1
r 1408 1088 1408 1024 0 1200 2
g 1408 1088 1408 1120 0
162 1472 960 1472 1024 3 2.1024259 1E-14 1 0.1 0.1
r 1472 1088 1472 1024 0 1200 2
g 1472 1088 1472 1120 0
162 1536 960 1536 1024 3 2.1024259 1E-14 1 0.1 0.1
r 1536 1088 1536 1024 0 1200 2
g 1536 1088 1536 1120 0
162 1600 960 1600 1024 3 2.1024259 1E-14 1 0.1 0.1
r 1600 1088 1600 1024 0 1200 2
g 1600 1088 1600 1120 0
w 1408 960 1472 960 0 0 0 0 0
w 1536 960 1600 960 0 0 0 0 0
w 1536 960 1472 960 0 0 0 0 0
x 416 800 448 800 17 20 Cathode
x 320 960 352 960 17 20 REF
x 416 1376 576 1408 17 20 Anode
w 224 1600 1664 1600 0 0 0 0 0
x 416 480 448 480 17 100 TL431%20Shunt%20Voltage%0AReference%2FRegulator
w 1344 864 1248 864 0 0 0 0 0
w 1344 1440 1248 1440 0 0 0 0 0
w 1344 864 1408 864 1 0 0 0 0
w 1408 864 1408 960 2 0 0 0 0
> Vout
x 640 736 672 736 1 23 Internal%20Integrated%20Circuit%0ABased%20on%20Texas%20Instruments%2C%20Aug%202004%20data.
x 1408 1184 1440 1184 1 20 Load%20%2810u%20capacitive%29