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Data Sheet
CA723, CA723C
April 1999
File Number 788.4
Voltage Regulators Adjustable from 2V to
37V at Output Currents Up to 150mA
without External Pass Transistors
The CA723 and CA723C are silicon monolithic integrated
circuits designed for service as voltage regulators at output
voltages ranging from 2V to 37V at currents up to 150mA.
Each type includes a temperature-compensated reference
amplifier, an error amplifier, a power series pass transistor,
and a current-limiting circuit. They also provide
independently accessible inputs for adjustable current
limiting and remote shutdown and, in addition, feature low
standby current drain, low temperature drift, and high ripple
rejection.
The CA723 and CA723C may be used with positive and
negative power supplies in a wide variety of series, shunt,
switching, and floating regulator applications. They can
provide regulation at load currents greater than 150mA and
in excess of 10A with the use of suitable NPN or PNP
external pass transistors.
Ordering Information
PART
NUMBER
CA0723E
CA0723T
CA0723CE
TEMP. RANGE
(oC)
PACKAGE
-55 to 125 14 Ld PDIP
-55 to 125 10 Pin Can
0 to 70
14 Ld PDIP
PKG. NO.
E14.3
T10.C
E14.3
Features
• Up to 150mA Output Current
• Positive and Negative Voltage Regulation
• Regulation in Excess of 10A with Suitable Pass
Transistors
• Input and Output Short-Circuit Protection
• Load and Line Regulation . . . . . . . . . . . . . . . . . . . .0.03%
• Direct Replacement for 723 and 723C Industry Types
• Adjustable Output Voltage . . . . . . . . . . . . . . . . . 2V to 37V
Applications
• Series and Shunt Voltage Regulator
• Floating Regulator
• Switching Voltage Regulator
• High-Current Voltage Regulator
• Temperature Controller
Pinouts
CA723 (PDIP)
TOP VIEW
NC 1
CURRENT
LIMIT
2
CURRENT
SENSE
3
INV
INPUT
4
NON-INV
INPUT
5
-
ERROR
AMP
+
VREF 6
VOLT
REF
V- 7
14 NC
13 FREQ
COMP
12
V+ UNREG
INPUT
11 VC
10 VO
9 VZ
8 NC
CA723C (CAN)
TOP VIEW
CURRENT
SENSE
CURRENT LIMIT
TAB
10
1
9
FREQ
COMP
INV
INPUT 2
NON-INV
INPUT
3
+
ERROR
A- MP
VOLT
REF
V+
8 UNREG
INPUT
7 VC
VREF 4
5 6 VO
V-, (CASE INTERNALLY
CONNECTED TO TERM 5)
3-3 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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