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What is MC7808CT?

This electronic component, produced by the manufacturer "Motorola Semiconductor", performs the same function as "(MC7800 Series) Three Terminal Positive Fixed Voltage Regulators".


MC7808CT Datasheet PDF - Motorola Semiconductor

Part Number MC7808CT
Description (MC7800 Series) Three Terminal Positive Fixed Voltage Regulators
Manufacturers Motorola Semiconductor 
Logo Motorola Semiconductor Logo 


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( DataSheet : www.DataSheet4U.com )
Order this document by MC7800/D
MC7800
Series
Three-Terminal Positive
Voltage Regulators
These voltage regulators are monolithic integrated circuits designed as
fixed–voltage regulators for a wide variety of applications including local,
on–card regulation. These regulators employ internal current limiting,
thermal shutdown, and safe–area compensation. With adequate heatsinking
they can deliver output currents in excess of 1.0 A. Although designed
primarily as a fixed voltage regulator, these devices can be used with
external components to obtain adjustable voltages and currents.
Output Current in Excess of 1.0 A
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor Safe–Area Compensation
Output Voltage Offered in 2% and 4% Tolerance
Available in Surface Mount D2PAK and Standard 3–Lead Transistor
Packages
THREE–TERMINAL
POSITIVE FIXED
VOLTAGE REGULATORS
SEMICONDUCTOR
TECHNICAL DATA
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Heatsink surface
connected to Pin 2.
1
2
3
Pin 1. Input
2. Ground
3. Output
D2T SUFFIX
PLASTIC PACKAGE
CASE 936
(D2PAK)
12
3
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
MC7805
MC7806
MC7808
MC7809
5.0 V
6.0 V
8.0 V
9.0 V
MC7812
MC7815
MC7818
MC7824
12 V
15 V
18 V
24 V
STANDARD APPLICATION
Input
Cin*
0.33 µF
MC78XX
Output
CO**
ORDERING INFORMATION
Device
Output Voltage Tested Operating
Tolerance
Temperature Range
Package
MC78XXACT
Insertion Mount
2%
MC78XXACD2T
Surface Mount
MC78XXCT
TJ = 0° to +125°C
Insertion Mount
MC78XXCD2T
MC78XXBT
MC78XXBD2T
Surface Mount
4%
Insertion Mount
TJ = – 40° to +125°C Surface Mount
XX indicates nominal voltage.
A common ground is required between the input
and the output voltages. The input voltage must
remain typically 2.0 V above the output voltage
even during the low point on the input ripple
voltage.
XX, these two digits of the type number
indicate nominal voltage.
** Cin is required if regulator is located an
appreciable distance from power supply
filter.
** CO is not needed for stability; however,
it does improve transient response. Values
of less than 0.1 µF could cause instability.
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MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1995
Rev 4
1

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MC7808CT equivalent
MC7800 Series
ELECTRICAL CHARACTERISTICS (Vin = 11 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7806AC
Characteristic
Symbol Min Typ Max
Output Voltage (TJ = 25°C)
Output Voltage
(5.0 mA IO 1.0 A, PD 15 W)
8.6 Vdc Vin 21 Vdc
VO 5.88 6.0 6.12
VO
5.76 6.0 6.24
Line Regulation (Note 2)
8.6 Vdc Vin 25 Vdc, IO = 500 mA
9.0 Vdc Vin 13 Vdc
9.0 Vdc Vin 13 Vdc, TJ = 25°C
8.3 Vdc Vin 21 Vdc, TJ = 25°C
Regline
5.0 60
1.4 60
1.4 30
4.5 60
Load Regulation (Note 2)
5.0 mA IO 1.5 A, TJ = 25°C
5.0 mA IO 1.0 A
250 mA IO 750 mA
Quiescent Current
TJ = 25°C
Quiescent Current Change
9.0 Vdc Vin 25 Vdc, IO = 500 mA
8.6 Vdc Vin 21 Vdc, TJ = 25°C
5.0 mA IO 1.0 A
Regload
IB
IB
1.3 100
0.9 100
0.2 50
– 6.0
3.3 6.0
– 0.8
– 0.8
– 0.5
Ripple Rejection
9.0 Vdc Vin 19 Vdc, f = 120 Hz, IO = 500 mA
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
Output Noise Voltage (TA = 25°C)
10 Hz f 100 kHz
RR
– 65 –
VI – VO
2.0
Vn
– 10 –
Output Resistance (f = 1.0 kHz)
Short Circuit Current Limit (TA = 25°C)
Vin = 35 Vdc
rO – 0.9 –
ISC
– 0.2 –
Peak Output Current (TJ = 25°C)
Average Temperature Coefficient of Output Voltage
Imax – 2.2 –
TCVO – – 0.3 –
Unit
Vdc
Vdc
mV
mV
mA
mA
dB
Vdc
µV/VO
m
A
A
mV/°C
ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7808B
MC7808C
Characteristic
Symbol Min Typ Max Min Typ Max Unit
Output Voltage (TJ = 25°C)
Output Voltage
(5.0 mA IO 1.0 A, PD 15 W)
10.5 Vdc Vin 23 Vdc
11.5 Vdc Vin 23 Vdc
Line Regulation, TJ = 25°C, (Note 2)
10.5 Vdc Vin 25 Vdc
11 Vdc Vin 17 Vdc
VO 7.7 8.0 8.3 7.7 8.0 8.3 Vdc
VO Vdc
– – – 7.6 8.0 8.4
7.6 8.0 8.4
Regline
mV
– 6.0 160 – 6.0 160
– 1.7 80 – 1.7 80
Load Regulation, TJ = 25°C (Note 2)
5.0 mA IO 1.5 A
250 mA IO 750 mA
Regload
– 1.4 160 – 1.4 160
– .22 80 – .22 80
Quiescent Current (TJ = 25°C)
IB – 3.3 8.0 – 3.3 8.0
NOTES:
1. Tlow = 0°C for MC78XXAC, C Thigh = +125°C for MC78XXAC, C, B
= – 40°C for MC78XXB
2. 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 cycle is used.
mV
mA
MOTOROLA ANALOG IC DEVICE DATA
5


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MC7808CT datasheet


1. - 8V, Positive Voltage Regulator

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