Philips Semiconductors |
Product specification |
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Precision voltage regulator |
μA723/723C |
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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.
FEATURES
•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
PIN CONFIGURATION
D,F, N Packages
NC |
1 |
14 |
NC |
CURRENT LIMIT |
2 |
13 |
FREQUENCY COMPENS. |
CURRENT SENSE |
3 |
12 |
V+ |
INVERTING INPUT |
4 |
11 |
VC |
NON-INVERTING INPUT |
5 |
10 |
VOUT |
VREF |
6 |
9 |
VZ |
V± |
7 |
8 |
NC |
SL00503
Figure 1. Pin Configuration
ORDERING INFORMATION
DESCRIPTION |
TEMPERATURE RANGE |
ORDER CODE |
DWG # |
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14-Pin Ceramic Dual In-Line Package (CERDIP) |
-55°C to 125°C |
μA723F |
0581B |
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14-Pin Plastic Dual In-Line Package (DIP) |
0 to 70°C |
μA723CN |
SOT27-1 |
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14-Pin Plastic Small Outline (SO) Package |
0 to 70°C |
μA723CD |
SOT108-1 |
EQUIVALENT CIRCUIT
FREQUENCY
COMPENSATION
12 |
V+ |
13 |
11 |
VC |
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VIN |
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TEMPERATURE |
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COMPENSATED |
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ZENER |
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INVERTING |
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SERIES PASS |
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TRANSISTOR |
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INPUT |
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VREF |
4 |
± |
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ERROR AMP |
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10 |
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8 |
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+ |
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VOUT |
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NON INVERTING |
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INPUT |
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VOLTAGE |
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REFERENCE |
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AMPLIFIER |
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7 |
V± |
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2 |
3 CURRENT |
9 |
VZ |
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CURRENT |
SENSE |
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LIMIT |
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SL00504 |
Figure 2. Equivalent Circuit
1994 Aug 31 |
1 |
853-1063 13721 |
Philips Semiconductors |
Product specification |
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Precision voltage regulator |
μA723/723C |
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ABSOLUTE MAXIMUM RATINGS
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SYMBOL |
PARAMETER |
RATING |
UNIT |
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Pulse voltage from V+ to V- (50ms) |
50 |
V |
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Continuous voltage from V+ to V- |
40 |
V |
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Input-output voltage differential |
40 |
V |
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VDIFF |
Error amplifier maximum input differential voltage |
±5 |
V |
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VCM |
Error amplifier non-inverting input (Pin 5) to -V (Pin 7) |
8 |
V |
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IOUT |
Maximum output current |
150 |
mA |
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Current from VREF |
15 |
mA |
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Current from VZ |
25 |
mA |
P |
MAX |
Maximum power dissipation T =25°C (still-air)1 |
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A |
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F package |
1190 |
mW |
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N package |
1420 |
mW |
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D package |
1040 |
mW |
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TA |
Operating ambient temperature range |
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μA723 |
-55 to +125 |
°C |
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μA723C |
0 to 70 |
°C |
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TSTG |
Storage temperature range |
-65 to +150 |
°C |
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TSOLD |
Lead soldering temperature (10sec max) |
300 |
°C |
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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 |
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