lm78l05h-xx-tu National Semiconductor Corporation, lm78l05h-xx-tu Datasheet

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lm78l05h-xx-tu

Manufacturer Part Number
lm78l05h-xx-tu
Description
Series 3-terminal Positive Voltage Regulators
Manufacturer
National Semiconductor Corporation
Datasheet
C 1995 National Semiconductor Corporation
LM78L00 Series
3-Terminal Positive Voltage Regulators
General Description
The LM78L00 series of 3-terminal positive voltage regula-
tors employ internal current-limiting and thermal shutdown
making them essentially indestructible If adequate heat
sinking is provided they can deliver up to 100 mA output
current They are intended as fixed voltage regulators in a
wide range of applications including local (on-card) regula-
tion for elimination of noise and distribution problems asso-
ciated with single-point regulation In addition they can be
used with power pass elements to make high current volt-
age regulators The LM78L00 used as a Zener diode resis-
tor combination replacement offers an effective output im-
pedance improvement of typically two orders of magnitude
along with lower quiescent current and lower noise
Connection Diagram
TL H 10051
LM78L12ACZ LM78L15ACZ LM78L62ACZ or LM78L82ACZ
Order Number LM78L05ACZ LM78L09ACZ
See NS Package Number Z03A
Top View
Features
Y
Y
Y
Y
Y
Y
Y
Output current up to 100 mA
No external components
Internal thermal overload protection
Internal short circuit current-limiting
Available in JEDEC TO-92
Output Voltages of 5 0V 6 2V 8 2V 9 0V 12V 15V
Output voltage tolerances of
temperature range
TL H 10051 – 1
g
5% over the
RRD-B30M115 Printed in U S A
June 1989

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lm78l05h-xx-tu Summary of contents

Page 1

... Connection Diagram Order Number LM78L05ACZ LM78L09ACZ LM78L12ACZ LM78L15ACZ LM78L62ACZ or LM78L82ACZ C 1995 National Semiconductor Corporation TL H 10051 Features Output current up to 100 external components ...

Page 2

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications b Storage Temperature Range Operation Junction Temperature Range Commercial (LM78L00AC) LM78L05AC Electrical Characteristics ...

Page 3

LM78L62AC Electrical Characteristics 125 C V 12V Symbol Parameter V Output Voltage O V Line Regulation R LINE V Load Regulation R LOAD V Output ...

Page 4

LM78L09AC Electrical Characteristics 125 C V 15V Symbol Parameter V Output Voltage O V Line Regulation R LINE V Load Regulation R LOAD V Output ...

Page 5

LM78L15AC Electrical Characteristics 125 C V 23V Symbol Parameter V Output Voltage O V Line Regulation R LINE V Load Regulation R LOAD V Output ...

Page 6

Typical Performance Characteristics Worst Case Power Dissipation vs Ambient Temperature (TO-92) Quiescent Current vs Input Voltage Line Transient Response Note Other LM78L00 Series devices have similar curves Dropout Voltage vs Junction Temperature Dropout Characteristics Quiescent Current vs Ripple Rejection vs ...

Page 7

Design Considerations The LM78L series regulators have thermal overload protec- tion from excessive power internal short-circuit protection which limits each circuit’s maximum current and output transistor safe-area protection for reducing the output cur- rent as the voltage across each pass ...

Page 8

Methods of Heat Sinking (Continued) The best analogy for PC board copper is to compare it with parallel resistors Beyond some point additional resistors are not significantly effective beyond some point additional copper area is not effective FIGURE 2 TO-92 ...

Page 9

9 ...

Page 10

Physical Dimensions inches (millimeters) Order Number LM78L05ACZ LM78L09ACZ LM78L12ACZ LM78L15ACZ LM78L62ACZ or LM78L82ACZ LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT ...

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