LM7812 REGULATORS Datasheet

LM7812 Datasheet, PDF, Equivalent


Part Number

LM7812

Description

3-TERMINAL 1A POSITIVE VOLTAGE REGULATORS

Manufacture

Fairchild

Total Page 24 Pages
Datasheet
Download LM7812 Datasheet


LM7812
September 2014
LM78XX / LM78XXA
3-Terminal 1 A Positive Voltage Regulator
Features
• Output Current up to 1 A
• Output Voltages: 5, 6, 8, 9, 10, 12, 15, 18, 24 V
• Thermal Overload Protection
• Short-Circuit Protection
• Output Transistor Safe Operating Area Protection
Description
The LM78XX series of three-terminal positive regulators
is available in the TO-220 package and with several fixed
output voltages, making them useful in a wide range of
applications. Each type employs internal current limiting,
thermal shut-down, and safe operating area protection. If
adequate heat sinking is provided, they can deliver over
1 A output current. Although designed primarily as fixed-
voltage regulators, these devices can be used with exter-
nal components for adjustable voltages and currents.
TO-220 (Single Gauge)
GND
1. Input
1 2. GND
3. Output
Ordering Information(1)
Product Number
LM7805CT
LM7806CT
LM7808CT
LM7809CT
LM7810CT
LM7812CT
LM7815CT
LM7818CT
LM7824CT
LM7805ACT
LM7809ACT
LM7810ACT
LM7812ACT
LM7815ACT
Output Voltage
Tolerance
±4%
±2%
Package
TO-220
(Single Gauge)
Note:
1. Above output voltage tolerance is available at 25°C.
Operating
Temperature
Packing Method
-40°C to +125°C
Rail
0°C to +125°C
© 2006 Fairchild Semiconductor Corporation
LM78XX / LM78XXA Rev. 1.3.1
www.fairchildsemi.com

LM7812
Block Diagram
Input
1
Starting
Circuit
Current
Generator
Reference
Voltage
Series Pass
Element
SOA
Protection
Error
Amplifier
Thermal
Protection
Figure 1. Block Diagram
Output
3
GND
2
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted.
Symbol
Parameter
Value
Unit
VI
RθJC
RθJA
TOPR
Input Voltage
VO = 5 V to 18 V
VO = 24 V
Thermal Resistance, Junction-Case (TO-220)
Thermal Resistance, Junction-Air (TO-220)
Operating Temperature Range
LM78xx
LM78xxA
35
40
5
65
-40 to +125
0 to +125
V
°C/W
°C/W
°C
TSTG
Storage Temperature Range
- 65 to +150
°C
© 2006 Fairchild Semiconductor Corporation
LM78XX / LM78XXA Rev. 1.3.1
2
www.fairchildsemi.com


Features LM78XX (KA78XX, MC78XX) FIXED VOLTAGE RE GULATOR (POSITIVE) 3-TERMINAL 1A POSITI VE VOLTAGE REGULATORS The LM78XX series of three-terminal positive regulators are available in the TO-220/D-PAK packa ge and with several fixed output voltag es, making them useful in a wide range of applications. Each type employs inte rnal current limiting, thermal shut-dow n and safe area protection, making it e ssentially indestructible. If adequate heat sinking is provided, they can deli ver over 1A output current. Although de signed primarily as fixed voltage regul ators, these devices can be used with e xternal components to obtain adjustable voltages and currents. TO-220 D-PAK FEATURES • • • • • Output Cu rrent up to 1A Output Voltages of 5, 6, 8, 9, 10, 11, 12, 15, 18, 24V Thermal Overload Protection Short Circuit Prote ction Output Transistor SOA Protection 1 1: Input 2: GND 3: Output ORDERING INFORMATION Device KA78XXCT KA78XXAT K A78XXIT KA78XXR KA78XXAR KA78XXIR Output Voltage Tolerance ± 4% ± 2% ± 4%.
Keywords LM7812, datasheet, pdf, Fairchild, 3-TERMINAL, 1A, POSITIVE, VOLTAGE, REGULATORS, M7812, 7812, 812, LM781, LM78, LM7, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)