DataSheet39.com

What is MC7912A?

This electronic component, produced by the manufacturer "Fairchild", performs the same function as "3-Terminal 1A Negative Voltage Regulator".


MC7912A Datasheet PDF - Fairchild

Part Number MC7912A
Description 3-Terminal 1A Negative Voltage Regulator
Manufacturers Fairchild 
Logo Fairchild Logo 


There is a preview and MC7912A download ( pdf file ) link at the bottom of this page.





Total 18 Pages



Preview 1 page

No Preview Available ! MC7912A datasheet, circuit

www.fairchildsemi.com
MC79XX/MC79XXA/LM79XX
3-Terminal 1A Negative Voltage Regulator
Features
• Output Current in Excess of 1A
• Output Voltages of -5, -6, -8 , -9, -10, -12, -15, -18 and -
24V
• Internal Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Compensation
Description
The MC79XX / MC79XXA/ LM79XX series of three
terminal negative regulators are available in 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, making it essentially
indestructible.
TO-220
Vin
1
1. GND 2. Input 3. Output
Internal Block Digram
GND
VOLTAGE
REFERENCE
I1
+
-
I2
R1
R2
OOuutptut
Q1
PROTECTION
CIRCUITRY
Q2
Rsc
In
Input
©2002 Fairchild Semiconductor Corporation
Rev. 1.0.1

line_dark_gray
MC7912A equivalent
MC79XX/MC79XXA/LM79XX
Electrical Characteristics (MC7909) (Continued)
(VI = -15V, IO = 500mA, 0°C TJ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Temperature Coefficient of VD
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
Symbol
VO
VO
VO
IQ
IQ
Vo/T
VN
RR
VD
ISC
IPK
Conditions
Min.
TJ = +25°C
-8.7
IO = 5mA to 1A, PO 15W
VI = -1.5V to -23V
-8.6
TJ = +25°C
VI = -11.5V to -26V -
VI = -12V to -18V -
TJ = +25°C
IO = 5mA to 1.5A
-
TJ = +25°C
IO = 250mA to 750mA
-
TJ = +25°C
-
IO = 5mA to 1A
-
VI = -11.5V to -26V
-
IO = 5mA
-
f = 10Hz to 100kHz
TA = +25°C
-
f = 120Hz
VI = 10V
54
TJ = +25°C
IO = 1A
-
TJ = +25°C, VI = -35V
-
TJ = +25°C
-
Typ.
-9.0
-9.0
10
5
12
4
3
0.05
0.1
-0.6
175
60
2
300
2.2
Max.
-9.3
-9.4
Unit
V
180
mV
90
180
mV
90
6 mA
0.5
mA
1
- mV/°C
- µV
- dB
-V
- mA
-A
Note:
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
5


line_dark_gray

Preview 5 Page


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for MC7912A electronic component.


Information Total 18 Pages
Link URL [ Copy URL to Clipboard ]
Download [ MC7912A.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
MC7912The function is THREE-TERMINAL NEGATIVE FIXED VOLTAGE REGULATORS. Motorola SemiconductorsMotorola Semiconductors
MC7912The function is 3-Terminal 1A Negative Voltage Regulator. FairchildFairchild
MC7912The function is MC7900 Series / 3-Terminal Negative Fixed Voltage Regulators. Motorola SemiconductorsMotorola Semiconductors

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

MC79     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search