Datasheet
µA723
PRECISION VOLTAGE REGULATORS
SLVS057D – AUGUST 1972 – REVISED JULY 1999
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
MIN MAX UNIT
Input voltage, V
I
9.5 40 V
Output voltage, V
O
2 37 V
Input-to-output voltage differential, V
C
– V
O
3 38 V
Output current, I
O
150 mA
Operating free-air temperature range, T
A
µA723C 0 70 °C
electrical characteristics at specified free-air temperature (see Notes 3 and 4)
PARAMETER
TEST CONDITIONS
T
µA723C
UNIT
PARAMETER
TEST
CONDITIONS
T
A
MIN TYP MAX
UNIT
V
I
= 12 V to V
I
= 15 V 25°C 0.1 1
Input regulation
V
I
= 12 V to V
I
= 40 V 25°C 1 5
mV/V
V
I
= 12 V to V
I
= 15 V 0°C to 70°C 3
Ri
pp
le rejection
f = 50 Hz to 10 kHz, C
ref
= 0 25°C 74
dB
Ripple
rejection
f = 50 Hz to 10 kHz, C
ref
= 5 µF 25°C 86
dB
Out
p
ut regulation
25°C –0.3 –2
mV/V
O
u
tp
u
t
reg
u
lation
0°C to 70°C –6
mV/V
Reference voltage, V
ref
25°C 6.8 7.15 7.5 V
Standby current V
I
= 30 V, I
O
= 0 25°C 2.3 4 mA
Temperature coefficient of output voltage 0°C to 70°C 0.003 0.015 %/°C
Short-circuit output current R
SC
= 10 Ω, V
O
= 0 25°C 65 mA
Out
p
ut noise voltage
BW = 100 Hz to 10 kHz, C
ref
= 0 25°C 20
µV
O
u
tp
u
t
noise
v
oltage
BW = 100 Hz to 10 kHz, C
ref
= 5 µF 25°C 2.5
µ
V
NOTES: 3. For all values in this table, the device is connected as shown in Figure 1 with the divider resistance as seen by the error amplifier
≤ 10 kΩ. Unless otherwise specified, V
I
= V
CC+
= V
C
= 12 V, V
CC–
= 0, V
O
= 5 V, I
O
= 1 mA, R
SC
= 0, and C
ref
= 0.
4. Pulse-testing techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible.
electrical characteristics, T
A
= 25°C (see Notes 3 and 4)
PARAMETER
TEST CONDITIONS
µA723Y
UNIT
PARAMETER
TEST
CONDITIONS
MIN TYP MAX
UNIT
In
p
ut regulation
V
I
= 12 V to V
I
= 15 V 0.1
mV/V
Inp
u
t
reg
u
lation
V
I
= 12 V to V
I
= 40 V 1
mV/V
Ri
pp
le rejection
f = 50 Hz to 10 kHz, C
ref
= 0 74
dB
Ripple
rejection
f = 50 Hz to 10 kHz, C
ref
= 5 µF 86
dB
Output regulation –0.3 mV/V
Reference voltage, V
ref
7.15 V
Standby current V
I
= 30 V, I
O
= 0 2.3 mA
Short-circuit output current R
SC
= 10 Ω, V
O
= 0 65 mA
Out
p
ut noise voltage
BW = 100 Hz to 10 kHz, C
ref
= 0 20
µV
O
u
tp
u
t
noise
v
oltage
BW = 100 Hz to 10 kHz, C
ref
= 5 µF 2.5
µ
V
NOTES: 3. For all values in this table, the device is connected as shown in Figure 1 with the divider resistance as seen by the error amplifier
≤ 10 kΩ. Unless otherwise specified, V
I
= V
CC+
= V
C
= 12 V, V
CC–
= 0, V
O
= 5 V, I
O
= 1 mA, R
SC
= 0, and C
ref
= 0.
4. Pulse-testing techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible.