February 2006
LM140JAN
Three Terminal Positive Regulators
nal components. It is not necessary to bypass the output,
although this does improve transient response. Input by-
passing is needed only if the regulator is located far from the
filter capacitor of the power supply.
General Description
The monolithic 3-terminal positive voltage regulators employ
internal current-limiting, thermal shutdown and safe-area
compensation, making them essentially indestructible. If ad-
equate heat sinking is provided, they can deliver over 0.5A
and 1.0A output current. They are intended as fixed voltage
regulators in a wide range of applications including local
(on-card) regulation for elimination of noise and distribution
problems associated with single-point regulation. In addition
to use as fixed voltage regulators, these devices can be
used with external components to obtain adjustable output
voltages and currents.
Features
n Complete specifications at 0.5A and 1.0A loads
n No external components
n Internal thermal overload protection
n Internal short circuit current-limiting
n Output transistor safe-area compensation
Considerable effort was expended to make the entire series
of regulators easy to use and minimize the number of exter-
Ordering Information
NS Part Number
JL140-5BXA
JL140-5BYA
JL140-5SXA
JL140-5SYA
JL140-12BXA
JL140-12BYA
JL140-12SXA
JL140-15BXA
JL140-15BYA
JL140-15SYA
SMD Part Number
JM38510/10702BXA
JM38510/10706BYA
JM38510/10702SXA
JM38510/10706SYA
JM38510/10703BXA
JM38510/10707BYA
JM38510/10703SXA
JM38510/10704BXA
JM38510/10708BYA
JM38510/10708SYA
NS Package Number
Package Description
3LD TO-39 Metal Can
2LD TO-3 Metal Can
3LD TO-39 Metal Can
2LD TO-3 Metal Can
3LD TO-39 Metal Can
2LD TO-3 Metal Can
3LD TO-39 Metal Can
3LD TO-39 Metal Can
2LD TO-3 Metal Can
2LD TO-3 Metal Can
H03A
K02C
H03A
K02C
H03A
K02C
H03A
H03A
K02C
K02C
Connection Diagrams
Steel Metal Can TO-39 Package (H)
TO-3 Metal Can (K)
20164602
Bottom View
See NS Package Number K02C
20164601
Bottom View
See NS Package Number H03A
© 2006 National Semiconductor Corporation
DS201646
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