HT7133

HT71XX

High Voltage Regulator

Selection Table

Part No.Output Voltage

Tolerance

HT7130 3.0V ±5%HT7133 3.3V ±5%HT7136 3.6V ±5%HT7144 4.4V ±5%HT7150

5.0V

±5%

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Features

·Low power consumption ·Low voltage drop

·

Low temperature coefficient

·High input voltage (up to 24V)·TO-92and SOT-89packages

Applications

·Battery-powered equipment ·

Communication equipment

·Audio/Video equipment

General Description

The HT71XX 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 ex-ternal components to

obtain variable voltages and currents.

Block Diagram

Pin Assignment

Pad Assignment Pad Coordinates

Unit:m m Pad No.

X Y 1-480.00-451.50287.50-444.503

482.00

-444.50

Chip size:1374′1294(m m)2

*The IC substrate should be connected to VDD in the PCB layout artwork.

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Absolute Maximum Ratings

Supply Voltage..............................-0.3V to28V Storage Temperature................-50°C to125°C Power Consumption.............................200mW Operating Temperature.................0°C to70°C

Note:These are stress ratings only.Stresses exceeding the range specified under Absolute Maxi-mum Ratings may cause substantial damage to the device.Functional operation of this de-vice at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

Electrical Characteristics

HT7130,+3.0V output type

HT7133,+3.3V output type Ta=25°C

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HT7144,+4.4V output type Ta=25°C

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Application Circuits

Basic circuits

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High output current positive voltage regulator

Short-Circuit protection by Tr1

Circuit for increasing output voltage

V V (1+

R2

R1

)I R2OUT XX SS =+HT71XX

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2000

Circuit for increasing output voltage

V OUT=V XX+V D1 Constant current regulator

I V

R I

OUT

XX

A SS

=+

Dual supply

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Copyright ó2000by HOLTEK SEMICONDUCTOR INC.

The information appearing in this Data Sheet is believed to be accurate at the time of publication.However,Holtek assumes no responsibility arising from the use of the specifications described.The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification,nor recommends the use of its products for application that may pres-ent a risk to human life due to malfunction or otherwise.Holtek reserves the right to alter its products without prior notification.For the most up-to-date information,please visit our web site at https://www.wendangku.net/doc/2710820748.html,.

Holtek Semiconductor Inc.(Headquarters)

No.3Creation Rd.II,Science-based Industrial Park,Hsinchu,Taiwan,R.O.C.Tel:886-3-563-1999Fax:886-3-563-1189

Holtek Semiconductor Inc.(Taipei Office)

5F,No.576,Sec.7Chung Hsiao E.Rd.,Taipei,Taiwan,R.O.C.Tel:886-2-2782-9635Fax:886-2-2782-9636

Fax:886-2-2782-7128(International sales hotline)

Holtek Semiconductor (Hong Kong)Ltd.

RM.711,Tower 2,Cheung Sha Wan Plaza,833Cheung Sha Wan Rd.,Kowloon,Hong Kong Tel:852-2-745-8288Fax:852-2-742-8657