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KA723 반도체 회로 부품 판매점

Precision Voltage Regulator



Fairchild 로고
Fairchild
KA723 데이터시트, 핀배열, 회로
KA723
Precision Voltage Regulator
www.fairchildsemi.com
Features
• Positive or Negative Supply Operation
• 0.01% line and load regulation
• Output voltage adjustable from 2V to 37 V
• Output current to 150mA without external pass transistor
Description
The KA723 are monolithic integrated Circuit voltage regu-
lators featuring high ripple rejection, excellent output and
load regulation, excellent temperature stability, and low
standby current. The KA723 are also useful in a wide range
of other applications such as a shunt regulator, a current reg-
ulator or a temperature controller.
14-DIP
1
14-SOP
Internal Block Diagram
TEMP.
COMPENS
ZENER
1
+Vcc
12
INVERT
INPUT
4
FREQUENCY
COMPENS
12 11
Vo
REF
AMP
ERROR
AMP
VREF
6 75
-Vcc
NON
INVERT
INPUT
53
CURRENT CURRENT
LIMIT SENSE
9
Vz
Vo
©2000 Fairchild Semiconductor International
Rev. 5.0


KA723 데이터시트, 핀배열, 회로
KA723
Absolute Maximum Ratings
Parameter
Pulse Voltage from V+ to V- (50ms)
Continuous Voltage from V+ to V-
Input-Output Voltage Differential
Maximum Output Current
Differential Input Voltage
Voltage Between Non-Inverting Input and V-
Current from VZ
Current from VREF
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Symbol
VI(P)
VI
VI - VO
IO
VID
VIE
IZ
IREF
PD
TOPR
TSTG
Value
50
40
40
150
±5
8
25
15
1000
0 ~ +70
-65 ~ + 150
Unit
VPEAK
V
V
mA
V
V
mA
mA
mV
°C
°C
Electrical Characteristics
(Unless otherwise specified, TA = 25°C, VIN =V+= VC = 12V, V-=O,VOUT = 5V, IL =1mA, RSC = 0, CI = 100pF, CREF=0 and
divider impedance as seen by error amplifier 10Kconnected as shown in figure 1)
Parameter
Line Regulation
Load Regulation
Ripple Rejection
Average Temperature Coefficient of
Output Voltage
Short Circuit Current Limit
Reference Voltage
Output Noise Voltage
Long-term Stability
Standby Current Drain
Input Voltage Range
Output Voltage Range
Input-Output Voltage Differential
Symbol
VO
VO
dB
VO/T
ISC
VREF
VN
ST
ID
VI
VO
VD
Conditions
Min
VI = 12V to 15V
VI = 12V to 40V
-
TMIN TATMAX
VI = 12V to 15V
-
IO = 1mA to 50mA
-
TMIN TTMAX
IO = 1 to 50mA
-
f = 100Hz to 10KHz,CREF =0
-
f = 100Hz to 10KHz,CREF =5µF -
Typ.
0.01
0.1
-
0.03
-
74
86
Max.
0.1
0.5
0.3
0.2
0.6
-
-
TMIN TTMAX
- 0.003 0.015
RSC = 10, VO = 0
- 65
- 6.80 7.15
f = 100Hz to 10KHz, CREF = 0 - 20
f = 100Hz to 10KHz, CREF=5µF - 2.5
-
7.50
-
-
- - 0.1 -
IL = 0, VI = 30V
-
-
-
- 2.0 4.0
9.5 - 40
2.0 - 37
3.0 - 38
Unit
%
%
dB
%/°C
mA
V
µVms
%/
1000HR
mA
V
V
V
Notes:
1.Line and load regulation specifications are given for the condition of constant chip temperature.
2.Temperature drifts must be taken into account separately for hith dissipation conditions.
2




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KA723 regulator

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