µA723

PRECISION VOLTAGE REGULATORS

SLVS057D – AUGUST 1972 – REVISED JULY 1999

6

POST OFFICE BOX 655303

APPLICATION INFORMATION

100 pF

R2

R1

Regulated Output,

VO

RSC

VI

REF

VCC+

VC

OUTPUT

VZ

CURR LIM

CURR SENS

IN+

VCC– 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., R3 = 0).

R3

+ R1

R2

R1

) R2

for a minimum

a

V

O

R2

VI

100 pF

2N5001

2 k

Ω

R3 =

3 k

Ω

R4 = 3 k

Ω

R1

REF

VCC+

VC

OUTPUT

VZ

CURR LIM

CURR SENS

IN+

VCC– FREQ COMP

IN–

µA723

Regulated Output,

VO

Figure 3. Negative-Voltage Regulator