LM78LXX Series
Typical Applications
Fixed Output Regulator
00774408
*Required if the regulator is located more than 3" from the power supply filter.
**See (Note 4) in the electrical characteristics table.
Adjustable Output Regulator
00774409
V
OUT
= 5V + (5V/R1 + I
Q
) R2
5V/R1
>
3 I
Q
, load regulation (L
r
)
≈
[(R1 + R2)/R1] (L
r
of LM78L05)
Current Regulator
00774410
I
OUT
= (V
OUT
/R1) + I
Q
>
I
Q
= 1.5mA over line and load changes
5V, 500mA Regulator with Short Circuit Protection
00774411
*Solid tantalum.
**Heat sink Q1.
***Optional: Improves ripple rejection and transient response.
Load Regulation: 0.6% 0
≤
I
L
≤
250mA pulsed with t
ON
= 50ms.
9
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