Philips Semiconductors
Product specification
Precision voltage regulator
µA723/723C
DESCRIPTION
The
µA723/µA723C
is a monolithic precision voltage regulator
capable of operation in positive or negative supplies as a series,
shunt, switching, or floating regulator. The 723 contains a
temperature-compensated reference amplifier, error amplifier, series
pass transistor, and current limiter, with access to remote shutdown.
PIN CONFIGURATION
D,F, N Packages
NC
1
CURRENT LIMIT
2
CURRENT SENSE
3
INVERTING INPUT
4
14
NC
13
FREQUENCY COMPENS.
12
V+
11
V
C
10
V
OUT
9
8
V
Z
NC
FEATURES
NON-INVERTING INPUT
5
V
REF
6
V–
7
•
Positive or negative supply operation
•
Series, shunt, switching, or floating operation
•
0.01% line and load regulation
•
Output voltage adjustable from 2V to 37V
•
Output current to 150mA without external pass transistor
•
µA723
MIL-STD-883A, B, C available
ORDERING INFORMATION
DESCRIPTION
14-Pin Ceramic Dual In-Line Package (CERDIP)
14-Pin Plastic Dual In-Line Package (DIP)
14-Pin Plastic Small Outline (SO) Package
SL00503
Figure 1. Pin Configuration
TEMPERATURE RANGE
-55°C to 125°C
0 to 70°C
0 to 70°C
ORDER CODE
µA723F
µA723CN
µA723CD
DWG #
0581B
SOT27-1
SOT108-1
EQUIVALENT CIRCUIT
FREQUENCY
COMPENSATION
12
V+
V
IN
13
11
V
C
TEMPERATURE
COMPENSATED
ZENER
V
REF
8
INVERTING
INPUT
4
ERROR AMP
SERIES PASS
TRANSISTOR
–
+
10
V
OUT
NON INVERTING
INPUT
VOLTAGE
REFERENCE
AMPLIFIER
7
V–
2
CURRENT
LIMIT
3 CURRENT
SENSE
9
V
Z
SL00504
Figure 2. Equivalent Circuit
1994 Aug 31
1
853-1063 13721
Philips Semiconductors
Product specification
Precision voltage regulator
µA723/723C
ABSOLUTE MAXIMUM RATINGS
SYMBOL
Continuous voltage from V+ to V-
Input-output voltage differential
V
DIFF
V
CM
I
OUT
Error amplifier maximum input differential voltage
Error amplifier non-inverting input (Pin 5) to -V (Pin 7)
Maximum output current
Current from V
REF
Current from V
Z
P
MAX
Maximum power dissipation T
A
=25°C
F package
N package
D package
T
A
Operating ambient temperature range
µA723
µA723C
Storage temperature range
Lead soldering temperature (10sec max)
(still-air)
1
1190
1420
1040
-55 to +125
0 to 70
-65 to +150
300
mW
mW
mW
°C
°C
°C
°C
PARAMETER
Pulse voltage from V+ to V- (50ms)
RATING
50
40
40
±5
8
150
15
25
UNIT
V
V
V
V
V
mA
mA
mA
T
STG
T
SOLD
NOTES:
1. The following derating factors should be applied above 25°C
F package at 9.5mW/°C
N package at 11.4mW/°C
D package at 8.3mW/°C
1994 Aug 31
2
Philips Semiconductors
Product specification
Precision voltage regulator
µA723/723C
DC ELECTRICAL CHARACTERISTICS
T
A
=25°C, unless otherwise specified.
1
SYMBOL
V
R LINE
V
R LOAD
∆VIN/∆
VO
I
OS
V
REF
V
REF (LOAD)
V
NOISE
S
I
SCD
V
IN
V
OUT
V
DIFF
PARAMETER
Line regulation
2
Load regulation
2
Ripple Rejection
Short-circuit current
Reference voltage
Reference voltage
change with load
Output noise voltage
Long-term stability
Standby current drain
Input voltage range
Output voltage range
Input-output voltage
differential
Line regulation
Load regulation
Average temperature
coefficient of output
voltage
V
IN
=12V to V
IN
=15V
I
L
=1mA to I
L
=50mA
0.002
TEST CONDITIONS
V
IN
=12V to V
IN
=15V
V
IN
=12V to V
IN
=40V
I
L
=1mA to I
L
=50mA
f=50Hz to 10kHz, C
REF
=0
f=50Hz to 10kHz, C
REF
=5µF
R
SC
=10Ω, V
OUT
=0
I
REF
=0.1mA
I
REF
=0.1mA to 5mA
BW=100Hz to 10kHz, C
REF
=0
BW=100Hz to 10kHz, C
REF
=5µF
Tj=Tjmax.
TA=25°C for end point
measurment
I
L
=0, V
IN
=30V
9.5
2.0
3.0
20
2.5
0.1
2.3
3.5
40
37
38
9.5
2.0
3.0
6.95
µA723
Min
Typ
0.01
0.02
0.03
74
86
65
7.15
7.35
20
20
2.5
0.1
2.3
4.0
40
37
38
6.80
Max
0.1
0.2
0.15
Min
µA723C
Typ
0.01
0.1
0.03
74
86
65
7.15
7.50
20
Max
0.1
0.5
0.2
UNITS
%V
OUT
%V
OUT
dB
mA
V
mV
µV
RMS
%1000 hrs.
mA
V
V
V
The following specifications apply over the operating temperature ranges.
V
R LINE
V
R LOAD
TC
0.3
0.6
0.015
0.003
0.3
0.6
0.015
%V
OUT
%V
OUT
%/°C
NOTES:
1. V
IN
=V+=V
C
=12V, V-=0V, V
OUT
=5V, I
L
=1mA, R
SC
=0, C
1
=100pF, C
REF
=0 and divider impedance as seen by error amplifier≤10kΩ.
2. The load and line regulation specifications are for constant junction temperature. Temperature drift effects must be taken into account
separately when the unit is operating under conditions of high dissipation.
1994 Aug 31
3
Philips Semiconductors
Product specification
Precision voltage regulator
µA723/723C
TYPICAL PERFORMANCE CHARACTERISTICS
Standby Current Drain
as a Function of Input Voltage
5.0
V
OUT
= V
REF
4.0
STANDBY CURRENT
I
L
= 0
T
A
= –55°C
I LMAX — mA
T
A
= 0°C
T
A
= +25°C
160
200
T
JMAX
= 150°C
REGULATION — % V OUT
R
TH
= 150°C/W
P
STANDBY
= 60mW
METAL CAN PACKAGE
(NO HEAT SINK)
T
A
= +25°C
T
A
= 70°C
T
A
= +125°C
Maximum Load Current
as a Function of
Input-Output Voltage
Differential
+0.1
Load Regulation
Characteristics with
Current Limiting
V
OUT
= 5V, V
IN
= +12V
0
R
SC
= 10Ω
T
A
= –55°C
–0.1
T
A
= +25°C
T
A
= +70°C
T
A
= +125°C
T
A
= 0°C
–0.3
3.0
120
2.0
T
A
= +70°C
1.0
T
A
= +125°C
80
–0.2
40
0
0
10
20
30
40
50
INPUT VOLTAGE — V
0
0
10
20
30
40
50
(V
IN
– V
OUT
) — V
–0.4
0
20
40
60
80
100
OUTPUT CURRENT — mA
Current Limiting
Characteristics as a
Function of Junction
Temperature
CURRENT LIMIT SENSE VOLTAGE — V
0.8
SENSE VOLTAGE
160
LIMIT CURRENT
R
SC
= 10Ω
LIMITING CURRENT — mA
0.7
160
I LMAX — mA
200
200
Maximum Load Current
as a Function of
Input-Output Voltage
Differential
+0.05
T
JMAX
= 150°C
REGULATION — % V OUT
R
TH
= 111°C/W
P
STANDBY
= 60mW
DIP PACKAGE
(NO HEAT SINK)
T
A
= +25°C
T
A
= 70°C
T
A
= +125°C
0
Load Regulation
Characteristics Without
Current Limiting
V
OUT
= 5V
V
IN
= +12V
R
SC
= 0
0.6
120
120
–0.05
0.5
LIMIT CURRENT
R
SC
= 5Ω
80
80
–0.1
T
A
= 70°C
T
A
= +25°C
T
A
= 0°C 40
20
T
A
= +125°C
T
A
= +55°C
0.4
40
40
–0.15
0.3
–50
0
+50
+100
+150
JUNCTION TEMPERATURE —
°C
0
0
0
10
20
30
40
50
(V
IN
– V
OUT
) — V
–0.2
0
60
80
100
OUTPUT CURRENT — mA
Load Transient Response
+0.3
OUTPUT VOLTAGE DEVIATION — mV
LOAD CURRENT
+10
REGULATION — % V OUT
+0.2
Line Regulation as a
Function of Input-Output
Voltage Differential
10
V
OUT
= +5V
OUTPUT IMPEDANCE —
Ω
R
SC
= 0
T
A
= +25°C
∆V
IN
= +3V
I
IL
= 1mA
Output Impedance as
a Function of Frequency
0
4.0
OUTPUT VOLTAGE
LOAD DEVIATION – mA
1.0
+0.1
V
O
= +5V
V
IN
= +12V
R
SC
= 0
T
A
= +25°C
I
IL
= 50mA
C
1
= 0
C
1
= 1µF
0.1
0
V
OUT
= 5V
V
IN
= +12V
I
L
= 40mA
R
SC
= 0
–5
5
15
25
35
45
0
–4.0
–0.1
–8.0
TIME —
µs
–0.2
–5
5
15
25
35
45
(V
IN
– V
OUT
) — V
.01
100
1k
10k
100k
1M
FREQUENCY — Hz
SL00505
Figure 3. Typical Performance Characteristics
1994 Aug 31
4
Philips Semiconductors
Product specification
Precision voltage regulator
µA723/723C
TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
Load Regulation as a
Function of Input-Output
Voltage Differential
INPUT VOLTAGE DEVIATION – VOLTS
V
O
= +5V
V
IN
= +12V
R
SC
= 0
T
A
= +25°C
I
IL
= mA TO I
L
= 50mA
OUTPUT VOLTAGE DEVIATION — V
4.0
INPUT VOLTAGE
2.0
0
OUTPUT VOLTAGE
0
REGULATION — %VOUT
+0.2
1.2
1.0
0.8
0.6
0.4
0.2
0
0
20
40
60
80
100
OUTPUT CURRENT — mA
T
A
= +125°C
T
A
= +70°C
T
A
= +25°C
T
A
= 0°C
T
A
= –55°C
V
O
= +5V
V
IN
= +12V
R
SC
= 10Ω
Line Transient Response
OUTPUT VOLTAGE DEVIATION — mV
Current Limiting
Characteristics
+0.1
0
0.1
–2.0
–6.0
45
–0.2
–0.3
–5
5
15
25
35
45
(V
IN
– V
OUT
) — V
–4.0
–5
5
15
25
35
TIME —
µs
SL00506
Figure 4. Typical Performance Characteristics (cont.)
TYPICAL APPLICATIONS
V
IN
V+
V
C
V
OUT
R
2
V+
V
REF
R
SC
CL
CS
V
C
V
OUT
V
Z
R
5
T
1
V
REF
R
1
REGULATED
OUTPUT
R
4
CL
CS
N.I.
INV
N.I.
C
REF
INV
C
1
R
3
R
2
V– COMP
R
3
R
1
COMP
C
1
100pF
100pF
REGULATED
OUTPUT
NOTES:
V
OUT
+
V REF x
R2
R1
)
R2
NOTE:
V
OUT
+
V REF
2
x
R1
)
R2
; R3
+
R4
R1
R3
+
R1 R2
for minimum temperature drift
R1
)
R2
Low Voltage Regulator (V
OUT
= 2 to 7V)
Figure 5. Typical Applications
Negative Voltage Regulator
SL00507
1994 Aug 31
5
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