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參數(shù)資料
| 型號(hào)： | 78L08 |
| 廠商： | 永盛國(guó)際集團(tuán) |
| 英文描述： | Positive-Voltage Regulators |
| 中文描述： | 正電壓穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大小： | 143K |
| 代理商： | 78L08 |
3-Terminal Regulators
Output Current up to 100 mA
No External Components
Internal Thermal-Overload Protection
Internal Short-Circuit Current Limiting
Direct Replacements for Fairchild
μ
A78L0
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.
electrical characteristics at specified virtual junction temperature, V
I
= 1 V, I = 40 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
T
UNIT
MIN
7.7
7.6
7.6
TYP
8
8
8
42
36
46
18
10
MAX
25
°
C
Output voltage
I =1mA to 40mA, V =10.5 to 23V
Full range
V
IO = 1 mA to 70 mA
VI =
VI =
VI =
IO = 1 mA to 100 mA
IO = 1 mA to 40 mA
Full range
Input
voltage regulation
Ripple rejection
f = 120 Hz
25
°
C
dB
Output
voltage regulation
°
Output
noise voltage
f = 10 Hz to 100 kHz
25
°
C
μ
V
Dropout voltage
25
°
C
25
°
C
125
°
C
1.7
4
V
6
5.5
Bias
current change
VI =
IO = 1 mA to 40 mA
1.5
0.1
range
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-
μ
F capacitor across the input and a 0.1-
μ
F capacitor across the output. Full range for the 78L05 is TJ = 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: wsccltd@hkstar.com
Positive-Voltage Regulators
25 C
25 C
Bias current
Full
mV
mV
mA
mA
2-1
78L08
8
78L08
8.3
8.4
8.4
175
125
37
80
40
54
10.5V to 23V
11V to 23V
13V to 23V
11V to 23V
INPUT
COMMON
OUTPUT
TO-92
78L08ACZ
OUTP
UT
GND
INPUT
SOT-89
78L08CPK
OCI
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