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PDF 78L18 Data sheet ( Hoja de datos )
| Número de pieza | 78L18 | |
| Descripción | Positive-Voltage Regulators | |
| Fabricantes | Wing Shing Computer Components | |
| Logotipo |  |
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78L18
D 3-Terminal Regulators
D Output Current up to 100 mA
D No External Components
D Internal Thermal-Overload Protection
D Internal Short-Circuit Current Limiting
D Direct Replacements for Fairchild µA78L18
Series
description
This series of fixed-voltage integrated-circuit
voltage regulators is designed for a wide range of
applications. These applications include on-card
regulation for elimination of noise and distribution
problems associated with single-point regulation.
In addition, they can be used with power-pass
elements to make high-current voltage regulators.
One of these regulators can deliver up to 100 mA
of output current. The internal limiting and
thermal-shutdown features of these regulators
make them essentially immune to overload. When
used as a replacement for a zener diode-resistor
combination, an effective improvement in output
impedance can be obtained, together with lower
bias current.
Positive-Voltage Regulators
OC
I TO-92
78L18ACZ
INPUT
COMMON
OUTPUT
OUTPUT GND INPUT
SOT-89
78L18CPK
electrical characteristics at specified virtual junction temperature, VI = 26V, Io 40mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
Output voltage
Input
voltage regulation
Ripple rejection
Output
voltage regulation
Output
noise voltage
I 1 mA to 40 mA
IO=1mA to 40MA, VI= 20.5 to 33V
IO = 1 mA to 70 mA
VI = 20.5V to 33V
VI = 22V to 33V
VI = 21.5V to 31.5V,f = 120 Hz
IO = 1 mA to 100 mA
IO = 1 mA to 40 mA
f = 10 Hz to 100 kHz
TJ‡
25°C
Full range
Full range
2255°CC
25°C
25°C
25°C
MIN
17.3
17.1
17.1
32
78L18
TYP
18
18
18
70
64
36
27
19
89
MAX
18.7
18.9
18.9
360
300
180
90
UNIT
V
mmVV
dB
mmVV
µV
Dropout voltage
BBiiaass ccuurrrreennt t
Bias
current change
VI = 22V to 33V
IO = 1 mA to 40 mA
25°C
25°C
125°C
FFuulll range
1.7 V
4.7 6.5 mmAA
6
1.5
0.1 mmAA
‡ Pulse-testing techniques maintain TJ as close to TA as possible. Thermal effects must be taken into account separately. All characteristics are
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output. Full range for the 78L05 is T J = 0°C to 70°C
Wing Shing Computer Components Co., (H.K.)Ltd.
Homepage: http://www.wingshing.com
Tel:(852)2341 9276 Fax:(852)2797 8153
E-mail: [email protected]
2-1
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| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet 78L18.PDF ] | |
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