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PDF UA723 Data sheet ( Hoja de datos )
| Número de pieza | UA723 | |
| Descripción | Precision voltage regulator | |
| Fabricantes | NXP Semiconductors | |
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Philips Semiconductors
www.DataSheet4U.com
Precision voltage regulator
Product specification
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.
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
CURRENT LIMIT 2
CURRENT SENSE 3
INVERTING INPUT 4
NON-INVERTING INPUT 5
VREF 6
V– 7
14 NC
13 FREQUENCY COMPENS.
12 V+
11 VC
10 VOUT
9 VZ
8 NC
SL00503
Figure 1. Pin Configuration
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
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
TEMPERATURE
COMPENSATED
ZENER
12 V+
VIN
FREQUENCY
COMPENSATION
13
11 VC
VREF
8
INVERTING
INPUT
4
ERROR AMP
NON INVERTING
INPUT
–
+
SERIES PASS
TRANSISTOR
10
VOUT
7 V–
VOLTAGE
REFERENCE
AMPLIFIER
2
CURRENT
LIMIT
Figure 2. Equivalent Circuit
3 CURRENT
SENSE
9 VZ
SL00504
1994 Aug 31
1 853-1063 13721
1 page  
www.PDhailitpasSSheemeicto4nUdu.ccotomrs
Precision voltage regulator
Product specification
µA723/723C
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Line Transient Response
INPUT VOLTAGE
4.0
2.0
OUTPUT VOLTAGE
0
0
Load Regulation as a
Function of Input-Output
Voltage Differential
+0.2
+0.1
0
VO = +5V
VIN = +12V
RSC = 0
TA = +25°C
IIL = mA TO IL = 50mA
0.1
–2.0
–4.0
–5
5 15 25 35
TIME — µs
–6.0
45
–0.2
–0.3
–5
5 15
25 35
(VIN – VOUT) — V
45
Figure 4. Typical Performance Characteristics (cont.)
Current Limiting
Characteristics
1.2
1.0
0.8 TA = +125°C
TA = +70°C
0.6 TA = +25°C
TA = 0°C
0.4 TA = –55°C
0.2
0
0
VO = +5V
VIN = +12V
RSC = 10Ω
20 40 60 80
OUTPUT CURRENT — mA
100
SL00506
TYPICAL APPLICATIONS
VIN
CREF
V+ VC
VOUT
VREF
R1
CL
CS
N.I. INV
V– COMP
R2
C1
100pF
RSC
R3
REGULATED
OUTPUT
R2 V+
VC
VREF VOUT
VZ
CL
R4
CS
N.I. INV
R3 R1 COMP
R5
T1
C1
100pF
REGULATED
OUTPUT
NOTES:
ƪ ƫR2
VOUT + VREF x R1 ) R2
R1 R2
R3 + R1 ) R2 for minimum temperature drift
NOTE:
ƪ ƫVREF R1 ) R2
VOUT + 2 x R1 ; R3 + R4
Low Voltage Regulator (VOUT = 2 to 7V)
Figure 5. Typical Applications
Negative Voltage Regulator
SL00507
1994 Aug 31
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet UA723.PDF ] | |
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