LT1083/LT1084/LT1085 - Linear Technology
LT1083/LT1084/LT1085 - Linear Technology
LT1083/LT1084/LT1085 - Linear Technology
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TYPICAL APPLICATION<br />
V IN<br />
28V<br />
10k<br />
High Effi ciency Regulator with Switching Preregulator<br />
1k<br />
V IN<br />
VIN<br />
TTL<br />
1M<br />
LT1011<br />
+<br />
+<br />
1mH<br />
MR1122<br />
+<br />
–<br />
+<br />
28V<br />
1N914<br />
10,000μF<br />
4N28<br />
10k<br />
10k<br />
470Ω<br />
IN<br />
1N914<br />
28V<br />
1.2V to 15V Adjustable Regulator<br />
C1*<br />
10μF<br />
5V Regulator with Shutdown*<br />
10μF<br />
1k<br />
IN <strong>LT1083</strong><br />
ADJ<br />
OUT<br />
IN<br />
1k<br />
ADJ<br />
R2<br />
1k<br />
<strong>LT1083</strong><br />
2N3904<br />
OUT<br />
*OUTPUT SHUTS DOWN TO 1.3V<br />
R1<br />
90.9Ω<br />
*NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS<br />
( )<br />
† VOUT = 1.25V 1 + R2<br />
R1<br />
121Ω<br />
1%<br />
365Ω<br />
1%<br />
<strong>LT1083</strong>/<strong>LT1084</strong>/<strong>LT1085</strong><br />
<strong>LT1083</strong> OUT<br />
ADJ<br />
+<br />
+<br />
V OUT †<br />
C2<br />
100μF<br />
1083/4/5 ADJ TA08<br />
VOUT<br />
5V<br />
100μF<br />
1083/4/5 ADJ TA09<br />
1083/4/5 ADJ TA06<br />
240Ω<br />
2k<br />
VOUT<br />
108345fg<br />
15
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