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MC7812AECTBU

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
©2003 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0
Features
• Output Current up to 1A
• Output Voltages of 5, 6, 8, 9, 12, 15, 18, 24V
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection
Description
The MC78XXE/LM78XXE/MC78XXAE series of three
terminal positive regulators are available in the
TO-220/D-PAK 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. If adequate heat sinking
is provided, they can deliver over 1A output current.
Although designed primarily as fixed voltage regulators,
these devices can be used with external components to
obtain adjustable voltages and currents.
TO-220
D-PAK
1. Input 2. GND 3. Output
1
1
GND
GND
Internal Block Digram
SERIES
PASS
ELEMENT
SOA
PROTECTION
ERROR
AMPLIFIER
THERMAL
PROTECTION
CURRENT
GENERATOR
REFERENCE
VOLTAGE
STARTING
CIRCUIT
OUTPUT
3
GND
2
INPUT
1
MC78XXE/LM78XXE/MC78XXAE
3-Terminal 1A Positive Voltage Regulator
MC78XXE/LM78XXE/MC78XXAE
2
Absolute Maximum Ratings
Electrical Characteristics (MC7805E/LM7805E)
(Refer to test circuit ,0°C < T
J
< 125°C, I
O
= 500mA, V
I
= 10V, C
I
= 0.33μF, C
O
= 0.1μF, unless otherwise specified)
Note:
1. Load and line regulation are specified at constant junction temperature. Changes in V
o
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
2. These parameters, although guaranteed, are not 100% tested in production.
Parameter Symbol Value Unit
Input Voltage (for V
O
= 5V to 18V)
(for V
O
= 24V)
V
I
V
I
35
40
V
V
Thermal Resistance Junction-Cases (TO-220) R
θJC
5 °C/W
Thermal Resistance Junction-Air (TO-220) R
θJA
65 °C/W
Operating Temperature Range T
OPR
0 ~ +125 °C
Storage Temperature Range T
STG
-65 ~ +150 °C
Parameter Symbol Conditions
MC7805E/LM7805E
Unit
Min. Typ. Max.
Output Voltage V
O
T
J
= +25°C 4.8 5.0 5.2
5.0mA ˺ Io ˺ 1.0A, P
O
˺ 15W
V
I
= 7V to 20V
4.75 5.0 5.25 V
Line Regulation (Note1) Regline T
JG
=G+25°C
V
O
= 7V to 25V - 4.0 100
mV
V
I
= 8V to 12V - 1.6 50
Load Regulation (Note1) Regload T
JG
=G+25°C
I
O
= 5.0mA to1.5A - 9 100
mV
I
O
=250mA to
750mA
-450
Quiescent Current I
Q
T
J
= +25°C-5.08.0mA
Quiescent Current Change ΔI
Q
I
O
= 5mA to 1.0A - 0.03 0.5
mA
V
IG
= 7V to 25V - 0.3 1.3
Output Voltage Drift (Note2) ΔV
O
/ΔTI
OG
= 5mA - -0.8 - mV/°C
Output Noise Voltage V
N
f = 10Hz to 100kHz, T
A
= +25°C-42-μV/Vo
RippleGRejection (Note2) RR
f = 120Hz
V
O
= 8V to 18V
62 73 - dB
Dropout Voltage V
Drop
I
O
= 1A, T
J
=+25°C-2-V
Output Resistance (Note2) r
O
f = 1kHz - 15 - mΩ
Short Circuit Current I
SC
V
I
= 35V, T
A
=+25°C - 230 - mA
Peak Current (Note2) I
PK
T
J
= +25°C-2.2-A
MC78XXE/LM78XXE/MC78XXAE
3
Electrical Characteristics (MC7806E)
(Continued)
(Refer to test circuit ,0°C < T
J
< 125°C, I
O
= 500mA, V
I
=11V, C
I
= 0.33μF, C
O
= 0.1μF, unless otherwise specified)
Note:
1. Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
2. These parameters, although guaranteed, are not 100% tested in production.
Parameter Symbol Conditions
MC7806E
Unit
Min. Typ. Max.
Output Voltage V
O
T
J
= +25°C 5.75 6.0 6.25
5.0mA ˺ I
O
˺ 1.0A, P
O
˺ 15W
V
I
= 8.0V to 21V
5.7 6.0 6.3 V
Line Regulation (Note1) Regline T
J
=+25°C
V
I
= 8V to 25V - 5 120
mV
V
I
= 9V to 13V - 1.5 60
Load Regulation (Note1) Regload T
J
=+25°C
I
O
=5mA to 1.5A - 9 120
mV
I
O
=250mA to750A - 3 60
Quiescent Current I
Q
T
J
=+25°C-5.08.0mA
Quiescent Current Change ΔI
Q
I
O
= 5mA to 1A - - 0.5
mA
V
I
= 8V to 25V - - 1.3
Output Voltage Drift (Note2) ΔV
O
/ΔTI
O
= 5mA - -0.8 - mV/°C
Output Noise Voltage V
N
f = 10Hz to 100kHz, T
A
= +25°C-45-μV/Vo
RippleGRejection (Note2) RR
f = 120Hz
V
I
= 9V to 19V
59 75 - dB
Dropout Voltage V
Drop
I
O
= 1A, T
J
= +25°C-2-V
Output Resistance (Note2) r
O
f = 1kHz - 19 - mΩ
Short Circuit Current I
SC
V
I
= 35V, T
A
= +25°C - 250 - mA
Peak Current (Note2) I
PK
T
J
=+25°C-2.2-A
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

MC7812AECTBU

Mfr. #:
Buy MC7812AECTBU
Manufacturer:
ON Semiconductor / Fairchild
Description:
Linear Voltage Regulators REGULATOR 12V 1.0A 2%
Lifecycle:
New from this manufacturer.
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