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MC1723CD Datasheet

  • MC1723CD

  • Motorola, Inc [VOLTAGE REGULATOR]

  • 882.80KB

  • MOTOROLA   MOTOROLA

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MC1723C
Voltage Regulator
The MC1723C is a positive or negative voltage regulator designed to
deliver load current to 150 mAdc. Output current capability can be increased
to several amperes through use of one or more external pass transistors.
MC1723C is specified for operation over the commercial temperature range
(0掳 to +70掳C).
鈥?/div>
Output Voltage Adjustable from 2.0 Vdc to 37 Vdc
VOLTAGE REGULATOR
SEMICONDUCTOR
TECHNICAL DATA
鈥?/div>
鈥?/div>
鈥?/div>
Output Current to 150 mAdc Without External Pass Transistors
0.01% Line and 0.03% Load Regulation
Adjustable Short Circuit Protection
Figure 1. Representative Schematic Diagram
VCC
12
500
6.2V
25k
1.0k
1.0k
VC
11
P SUFFIX
PLASTIC PACKAGE
CASE 646
Vz
9
6.2V
15k
15k
100
5.0pF
30k
5.0k
6
Vref
6.2V
300
20k
5
7
150
VEE
4
Inverting
Input
10
VO
13
Compensation
2 Current
Limit
Current
3 Sense
Device
MC1723CD
MC1723CP
D SUFFIX
PLASTIC PACKAGE
CASE 751A
(SO鈥?4)
ORDERING INFORMATION
Alternate
鈥?/div>
LM723CN
碌A723PC
TA = 0掳 to +70掳C
Operating
Temperature
Range
Package
SO鈥?4
Plastic DIP
Noninverting
Input
Figure 2. Typical Circuit Connection
(7 < VO < 37)
12
Vin
11
2
3
6
R3
5
Cref
MC1723C
4
C1
13
7
100pF
R2
0.1碌F
6
5
R1
Vin = 20Vdc
12
11
MC1723C
4
C1
13
7
100pF
10k
12k
10
RSC
VO
Figure 3. Typical NPN Current Boost Connection
RSC = 0.33
2N3055 or Equiv
10
2
3
VO = +15Vdc
IL = 2Adc max
Vsense
ISC =
VO 7
RSC
For best results 10 k < R2 < 100 k
For minimum drift R3 = R1 | | R2
R1 + R2
R2
^
0.66
=
at TJ = + 25掳C
RSC
漏
Motorola, Inc. 1996
Rev 5
MOTOROLA ANALOG IC DEVICE DATA
1

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