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Holtek Semiconductor Inc |
HT71XX-1
30mA Voltage Regulator
Features
· Low power consumption
· Low voltage drop
· Low temperature coefficient
Applications
· Battery-powered equipment
· Communication equipment
· High input voltage (up to 24V)
· Output voltage accuracy: tolerance ±3%
· TO-92, SOT-89 and SOT-25 package
· Audio/Video equipment
General Description
The HT71XX-1 series is a set of three-terminal low
power high voltage regulators implemented in CMOS
technology. They allow input voltages as high as 24V.
They are available with several fixed output voltages
ranging from 3.0V to 5.0V. CMOS technology ensures
low voltage drop and low quiescent current.
Although designed primarily as fixed voltage regulators,
these devices can be used with external components to
obtain variable voltages and currents.
Selection Table
Part No.
HT7130-1
HT7133-1
HT7136-1
HT7144-1
HT7150-1
Output Voltage
3.0V
3.3V
3.6V
4.4V
5.0V
Note: ²XX² stands for output voltages.
Block Diagram
Tolerance
±3%
±3%
±3%
±3%
±3%
Package
TO-92
SOT-89
SOT-25
Marking
71XXA-1 (for TO-92)
71XX-1 (for SOT-89)
1XX1 (for SOT-25)
VIN VOUT
Vref
GND
Rev. 1.10
1 August 22, 2002
Pin Assignment
T O -9 2
7 1 X X A - 1 . ro n t V ie w
S O T -8 9
7 1 X X -1
G N D V IN V O U T
G N D V IN V O U T
HT71XX-1
S O T -2 5
NC
NC
1X X 1
T o p V ie w
G N D V IN V O U T
B o tto m V ie w
G N D V IN V O U T
G N D V IN V O U T
Pad Assignment
(0 ,0 )
Pad Coordinates
Pad No.
1
2
3
X
-429.00
123.50
416.00
Unit: mm
Y
-401.00
-401.00
-401.00
1 23
Chip size: 1111´1051 (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 (*1) .................................. 200mW
Power Consumption (*2) ...................................150mW
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 Maximum 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 exposure to extreme conditions may affect device reliabil-
ity.
*1: applied to SOT-89 and TO-92
*2: applied to SOT-25
Rev. 1.10
2 August 22, 2002
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