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PDF UTC79D24 Data sheet ( Hoja de datos )
| Número de pieza | UTC79D24 | |
| Descripción | 3 TERMINAL 0.5A NEGATIVE VOLTAGE REGULATOR | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UTC79DXX LINEAR INTEGRATED CIRCUIT
3 TERMINAL 0.5A NEGATIVE
VOLTAGE REGULATOR
DESCRIPTION
The UTC 79DXX series of three-terminal negative
regulators are available in TO-252 and TO-251 packages and
with several fixed output voltage, making them useful in a
wide range of application. Each type employs internal current
limiting, thermal shut-down and safe area protection, making
it essentially indestructible.
FEATURES
*Output current up to 0.5A
*-5V; -6V;-8V;-12V;-15V;-18V;-24V output voltage available
*Thermal overload protection
*Short circuit protection
1
1
TO-252
TO-251
BLOCK DIAGRAM
GND
Voltage
reference
1: GND 2: Input 3: Output
R1
R2 OUTPUT
Protection
circuitry
RSC INPUT
UTC
UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R101-012,D
1 page  
www.DataSheet4U.com
UTC79DXX LINEAR INTEGRATED CIRCUIT
UTC 79D24 ELECTRICAL CHARACTERISTICS
(Refer to test circuits, 0<Tj<125°C, Io=500mA, Vi=-33V, Ci=2.2uF, Co=1uF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Tj=25°C
-23.04 -24.0 -24.96 V
Output voltage
Vo 5.0mA<Io<0.5A,Po<15W
Vi=-27V to –38V
-22.80
-25.20 V
Line regulation
∆Vo Tj=25°C,Vi=-27V to -38V
15 480 mV
Tj=25°C,Vi=-30V to -36V
8 240 mV
Load regulation
∆Vo Tj=25°C,Io=5.0mA to 0.5A
15 480 mV
Tj=25°C,Io=5.0mA to 200mA
5.0 240 mV
Quiescent current
IQ Tj=25°C
4.3 8 mA
Quiescent current change
∆IQ Io=5mA to 0.5A
0.5 mA
Vi=-27V to –38V
1.0 mA
Output voltage drift
∆Vo/∆T Io=5mA
-1 mV/°C
Output noise voltage
VN f=10Hz to 100kHz,Ta=25°C
400 µV
Ripple rejection
RR f=120Hz, Vi=-28V to -38V
54 60
dB
Dropout voltage
Vd Io=0.5A,Tj=25°C
2V
APPLICATION CIRCUITS
C1
2.2 µF
C0
1 µF
1
-Vi 2 UTC 79DXX 3 -Vo
+20V
-20V
Fig.1 Fixed output regulator
1 UTC 78D15
0.33 µF
2
3
0.1 µF
1N4001
+15V
2.2 µF
2
1
UTC 79D15
1 µF
3
1N4001
Fig.2 Split power supply (+-15V, 0.5A)
-15V
UTC
UNISONIC TECHNOLOGIES CO., LTD. 5
QW-R101-012,D
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet UTC79D24.PDF ] | |
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