CA723 Intersil Corporation, CA723 Datasheet - Page 2

• Manufacturer Part Number: CA723
• Description: Voltage Regulators Adjustable from 2V to 37V at Output Currents Up to 150mA without External Pass Transistors
• Manufacturer: Intersil Corporation

Functional Block Diagram
UNREGULATED
INPUT
6.2V
D1
V+
Q1
15k
TEMPERATURE-
COMPENSATED
ZENER
FIGURE 1. EQUIVALENT SCHEMATIC DIAGRAM OF THE CA723 AND CA723C
3-4
R2
D3
R1
500
Q6
Q3
R3
25k
VOLT
REF
AMP
30k
Q4
C1
5pF
R7
Q5
R8
5k
R6
100
D2
6.2V
V
NON-INVERTING
REF
V
CA723, CA723C
REF
1k
300
V+
INVERTING
V-
R4
Q10
R9
UNREGULATED
INPUT
INPUT
Q7
INPUT
NON-INVERTING
CURRENT
ERROR
AMP
-
+
R10
20k
Q9
INPUT
LIMIT
COMPENSATION
FREQUENCY
CURRENT
LIMITER
Q11 Q12
1k
V-
R5
Q13
R11
150
CURRENT
SENSE
INVERTING
Q8
INPUT
SERIES PASS
TRANSISTOR
V
OUTPUT
Q16
V
O
V
C
Z
REGULATED
15k
R12
D4
Q14
V
C
Q15
V
V
FREQUENCY
COMPENSATION
CURRENT
LIMIT
CURRENT
SENSE
O
Z