Datasheet

µA723
PRECISION VOLTAGE REGULATORS
SLVS057D – AUGUST 1972 – REVISED JULY 1999
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
100 pF
R2
R1
Regulated Output,
V
O
R
SC
V
I
REF
V
CC+
V
C
OUTPUT
V
Z
CURR LIM
CURR SENS
IN+
V
CC–
FREQ COMP
IN–
R3
(see Notes A and B)
µA723
NOTES: A.
B. R3 can be eliminated for minimum component count. Use direct connection (i.e., R
3
= 0).
R3
R1 R2
R1 R2
for a minimum
V
O
Figure 2. Basic High-Voltage Regulator (V
O
= 7 V to 37 V)
R2
V
I
100 pF
2N5001
2 kΩ
R3 =
3 kΩ
R4 = 3 kΩ
R1
REF
V
CC+
V
C
OUTPUT
V
Z
CURR LIM
CURR SENS
IN+
V
CC–
FREQ COMP
IN–
µA723
Regulated Output,
V
O
Figure 3. Negative-Voltage Regulator