CA723, CA723C
Data Sheet
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
ampli鏗乪r, an error ampli鏗乪r, 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 鏗俹ating 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.
Features
鈥?Up to 150mA Output Current
鈥?Positive and Negative Voltage Regulation
鈥?Regulation in Excess of 10A with Suitable Pass
Transistors
鈥?Input and Output Short-Circuit Protection
鈥?Load and Line Regulation . . . . . . . . . . . . . . . . . . . .0.03%
鈥?Direct Replacement for 723 and 723C Industry Types
鈥?Adjustable Output Voltage . . . . . . . . . . . . . . . . . 2V to 37V
Applications
鈥?Series and Shunt Voltage Regulator
鈥?Floating Regulator
鈥?Switching Voltage Regulator
鈥?High-Current Voltage Regulator
鈥?Temperature Controller
Ordering Information
PART
NUMBER
CA0723E
CA0723T
CA0723CE
TEMP. RANGE
(
o
C)
-55 to 125
-55 to 125
0 to 70
PACKAGE
14 Ld PDIP
10 Pin Can
14 Ld PDIP
PKG. NO.
E14.3
Pinouts
CA723 (PDIP)
TOP VIEW
NC 1
14 NC
13 FREQ
COMP
12 V+ UNREG
INPUT
ERROR
AMP
T10.C
E14.3
CURRENT 2
LIMIT
CURRENT 3
SENSE
INV 4
INPUT
NON-INV 5
INPUT
V
REF
6
V- 7
-
11 V
C
10 V
O
9 V
Z
8 NC
+
VOLT
REF
CA723C (CAN)
TOP VIEW
CURRENT LIMIT
TAB
10
CURRENT
FREQ
9 COMP
SENSE 1
INV
INPUT 2
NON-INV 3
INPUT
+
ERROR
AMP
V+
8 UNREG
INPUT
7 V
C
6
5
-
VOLT
REF
V
REF
4
V
O
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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Copyright
漏
Intersil Corporation 1999