CA723 Datasheet, PDF (1/8 Pages) Intersil Corporation – Voltage Regulators Adjustable from 2V to 37V at Output Currents Up to 150mA without External Pass Transistors

CA723, CA723C S E M I C O N D U C T O R
April 1994
Voltage Regulators Adjustable from 2V to 37V at Output
Currents Up to 150mA Without External Pass Transistors
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
Ordering Information
PART
CA723E
CA723T
CA723CE
CA723CT
TEMPERATURE
-55^oC to +125^oC
-55^oC to +125^oC
0^oC to +70^oC
0^oC to +70^oC
PACKAGE
14Lead Plastic DIP
10 Pin Metal Can
14 Lead Plastic DIP
10 Pin Metal Can
Description
The CA723 and CA723C are silicon monolithic integrated cir-
cuits designed for service as voltage regulators at output volt-
ages 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 acces-
sible inputs for adjustable current limiting and remote shutdown
and, in addition, feature low standby current drain, low tempera-
ture drift, and high ripple rejection.
The CA723 and CA723C may be used with positive and nega-
tive 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 n-p-n or p-n-p external pass transistors.
The CA723 and CA723C are supplied in the 10 lead TO-100
metal can(T suffix), and the 14 lead dual-in-line plastic package
(E suffix), and are direct replacements for industry types LM723,
LM723C in packages with similar terminal arrangements.
Pinouts
CA723 (PDIP)
TOP VIEW
Functional Block Diagram
NC 1
CURRENT
LIMIT
2
CURRENT
SENSE
3
INV
INPUT
4
NON-INV
INPUT
5
-
ERROR
AMP
+
V_REF 6
VOLT
REF
V- ⁷
14 NC
13 ^FREQ
COMP
12
V+ UNREG
INPUT
11 V_C
10 V_O
9 V_Z
8 NC
CA723C (CAN)
TOP VIEW
CURRENT
SENSE
CURRENT LIMIT
TAB
1
10
9
FREQ
COMP
INV
INPUT
2
NON-INV
INPUT
3
+
ERROR
-^AMP
VOLT
REF
V+
8 UNREG
INPUT
7 V_C
V_REF 4
5
6 _VO
V-, (CASE INTERNALLY
CONNECTED TO TERM 5)
TEMPERATURE-
COMPENSATED
ZENER
VOLT
REF
AMP
V+
FREQUENCY
UNREGULATED _COMPENSATION
INPUT
INVERTING
INPUT
V_REF
NON-INVERTING
INPUT
-
ERROR
AMP
+
V_C
SERIES PASS
TRANSISTOR
V_O REGULATED
OUTPUT
V_Z
CURRENT
CURRENT
V-
LIMIT
SENSE
CURRENT
LIMITER
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright © Harris Corporation 1994
7-3
File Number 788.3