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PDF 7430 Data sheet ( Hoja de datos )
| Número de pieza | 7430 | |
| Descripción | Negative Voltage Regulator | |
| Fabricantes | Holtek Semiconductor Inc | |
| Logotipo |  |
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HT74XX
Negative Voltage Regulator
Features
· Low power consumption
· Low voltage drop
· Low temperature coefficient
· High input voltage (up to -24V)
· High output current : 100mA (Pd £ 250mW)
· TO-92 and SOT-89 package
Applications
· Battery-powered equipment
· Communication equipment
· Audio/Video equipment
General Description
The HT74XX series is a set of three-terminal
high current high voltage regulator imple-
mented in CMOS technology. They can deliver
100mA output current and allow an input volt-
age as high as -24V. They are available with
several fixed output voltages ranging from
-2.4V to -15V. CMOS technology ensures low
voltage drop and low quiescent current.
Although designed primarily as fixed voltage
regulators, these devices can be used with ex-
ternal components to obtain variable voltages
and currents.
Selection Table
Part No.
HT7430
HT7450
Output Voltage
-3.0V
-5.0V
Tolerance
±5%
±5%
1 January 26, 2000
1 page  
Circuit for increasing output voltage
V IN
V IN 0 6 % " : :
V OUT
S e r ie s
C1 C2
10mF G N D 10mF
IS S
V OUT
V XX R 1
R2
C om m on
S in g le p o in t G N D
C om m on
VOUT
= VXX
(1+
R2
R1
)
+
I SS R2
Circuit for increasing output voltage
V IN V IN
C1
10mF
C om m on
0 6%": :
S e r ie s
GND
IS S
V OUT
C2
10mF
D1
S in g le p o in t G N D
V OUT
V XX R 1
C om m on
HT74XX
Constant current regulator
VOUT = VXX + VD1
V IN
V IN 0 6 % " : :
V OUT
S e r ie s
C1
10mF
GND
C2
10mF
V XX
RA
IS S IO U T
C om m on
I OUT
= VXX
RA
+ I SS
RL
5 January 26, 2000
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet 7430.PDF ] | |
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