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  Holtek Semiconductor Electronic Components Datasheet  

7430 Datasheet

Negative Voltage Regulator

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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


  Holtek Semiconductor Electronic Components Datasheet  

7430 Datasheet

Negative Voltage Regulator

No Preview Available !

Block Diagram
VIN
ref
GND
Pin Assignment
TO-92
SOT-89
HT74XX Front View
HT74XX
VOUT
VOUT GND VIN
GND VIN VOUT
Bottom View
Pad Assignment
(0 ,0 )
1 23
Pad Coordinates
Pad No.
1
2
3
X
-571.75
175.75
592.25
Unit: mm
Y
-578.00
-545.50
-545.50
Chip size: 1550 ´ 1562 (mm)2
* The IC substrate should be connected to VDD in the PCB layout artwork.
Absolute Maximum Ratings
Supply Voltage.............................+0.3V to -26V
Power Consumption.............................. 250mW
Storage Temperature.................-50°C to 125°C
Operating Temperature ..................0°C to 70°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi-
mum Ratings² may cause substantial damage to the device. Functional operation of this device
at other conditions beyond those listed in the specification is not implied and prolonged expo-
sure to extreme conditions may affect device reliability.
2 January 26, 2000


Part Number 7430
Description Negative Voltage Regulator
Maker Holtek Semiconductor Inc
Total Page 7 Pages
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