Datasheet > LM317E3

LM317E3

更新时间： 2024-10-29 05:42:03

品牌	Logo	应用领域
全宇昕 - CYSTEKEC		稳压器
页数	文件大小	规格书
10页	213K
描述
Three Terminal Adjustable Output Positive Voltage Regulators

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数据手册

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LM317E3 数据手册

Spec. No. : C513E3

Issued Date : 2003.04.09

Revised Date :2005.05.17

Page No. : 1/10

CYStech Electronics Corp.

Three Terminal Adjustable Output

Positive Voltage Regulators

LM317E3

The LM317E3 is an adjustable 3–terminal positive voltage regulator capable

of supplying in excess of 1.5 A over an output voltage range of 1.2 V to 37 V.

This voltage regulator is exceptionally easy to use and requires only two ex-

ternal resistors to set the output voltage. Further, it employs internal current

limiting, thermal shutdown and safe area compensation, making it essentially

blow–out proof.

TO-220AB

The LM317E3 serves a wide variety of applications including local, on-card

regulation. This device can also be used to make a programmable output regu-

lator, or by connecting a fixed resistor between the adjustment and output, the

LM317E3 can be used as a precision current regulator.

● Output Current in Excess of 1.5 A

● Output Adjustable between 1.2 V and 37 V

● Internal Thermal Overload Protection

● Internal Short Circuit Current Limiting Constant with Temperature

● Output Transistor Safe–Area Compensation

● Floating Operation for High Voltage Applications

● Eliminates Stocking many Fixed Voltages

Standard Application

＊Cin is required if regulator is located an appreciate

distance from power supply filter.

＊＊Cout is not needed for stability, however, it does

Vin

Vout

PL317

LM317

improve transient response.

I^Adj

Vout=1.25(1+R2/R1)+IAdjR2

Cin

0.1µF

⁺Cout

1.0µF

Since IAdj is controlled to less than 100 µA, the

error associated with this term is negligible in

most applications.

Maximum Ratings

Rating

Symbol

Value

Unit

Input-Output Voltage Differential

Power Dissipation

VI-VO

TA=25℃

P^D

θJA

θJC

Internally Limited

℃/W

Thermal Resistance, Junction-to-Ambient

Thermal Resistance, Junction-to-Case

5.0

Operating Junction Temperature Range

Storage Temperature Range

℃

Tstg

-40 to +125

-65 to +150

℃

LM317E3

CYStek Product Specification

12 3 4 5 6 7...10

中文翻译

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