SNVS754I – JANUARY 2000 – REVISED APRIL 2013
Typical Applications
*Required if the regulator is located more than 3″ from the power supply filter.
**See
(1)
in the electrical characteristics table.
Figure 13. Fixed Output Regulator
V
OUT
= 5V + (5V/R1 + I
Q
) R2
5V/R1 > 3 I
Q
, load regulation (L
r
)
≈
[(R1 + R2)/R1] (L
r
of LM78L05)
Figure 14. Adjustable Output Regulator
I
OUT
= (V
OUT
/R1) + I
Q
>I
Q
= 1.5mA over line and load changes
Figure 15. Current Regulator
(1)
Recommended minimum load capacitance of 0.01μF to limit high frequency noise.
9
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