HT75XX中文资料

HT75XX

High Driver Regulator

Selection Table

Part No.Output Voltage

Tolerance

HT7530 3.0V ±5%HT7533 3.3V ±5%HT7536 3.6V ±5%HT7544 4.4V ±5%HT7550 5.0V ±5%HT7580

8.0V

±5%

1May 2,2000

Features

·Low power consumption ·Low voltage drop

·

Low temperature coefficient ·High input voltage (up to 24V)

·High output current :100mA (P d ￡250mW)·TO-92and SOT-89package

Applications

·Battery-powered equipment ·

Communication equipment

·Audio/Video equipment

General Description

The HT75XX series is a set of three-terminal high current low 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 sev-eral fixed output voltages ranging from 3.0V to 8V .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

HT75XX

2May 2,

2000

Pad Assignment Pad Coordinates Unit:m m

Pad No.X Y

1-506.50-589.50

261.00-582.50

3510.50-585.50 Chip size:1390′1530(m m)2

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

Absolute Maximum Ratings

Supply Voltage...............................-0.3V to26V Storage Temperature.................-50°C to125°C Power Consumption..............................250mW Operating Temperature..................0°C to70°C

Note:These are stress ratings only.Stresses exceeding the range specified under2Absolute Maxi-mum Ratings2may 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.

3May2,2000

Electrical Characteristics

HT7530,+3.0V output type Ta=25°C

HT7533,+3.3V output type Ta=25°C

4May2,2000

HT7544,+4.4V output type Ta=25°C

5May2,2000

HT7580,+8.0V output type Ta=25°C

6May2,2000

Application Circuits

Basic circuit

High output current positive voltage regulator

Short-Circuit protection for Tr1

HT75XX

7May 2,

2000

Circuit for increasing output voltage

V=V(1+R2

R1)+I R2

OUT XX SS Circuit for increasing output voltage

V=V+V

OUT XX D1 Constant current regulator

I=V

R +I

OUT

XX

A

SS

8May2,2000

Dual supply

9May2,2000

10May 2,2000

Copyright ?2000by 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/4a17746376.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)

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