Datasheet > LND317

LND317

更新时间： 2024-10-19 11:37:55

品牌	Logo	应用领域
LINEAR_DIMENSIONS		稳压器
页数	文件大小	规格书
4页	107K
描述
3-Terminal Adjustable Regulators

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LND317 数据手册

•

DATA SHEET

LND317

3-Terminal Adjustable Regulators

GENERAL DESCRIPTION

FEATURES

The LND317 is an adjustable 3-terminal positive-

voltage regulator capable of supplying 1.5A over a

differential voltage range of 3V to 40V. It is

exceptionally easy to use and requires only two

external resistors to set the output voltage. Both

input and output regulation is better than standard

fixed regulators.

•

Output Voltage Range Adjustable

from 1.2V to 37V

•

Output Current Capability of 1.5A Max

Input Regulation Typically 0.01% per

Input-Volt Change

•

Output Regulation Typically 0.1%

Peak Output Current Constant Over

Temperature Range of Regulator

In addition to higher performance than fixed

regulators, the LND317 has full overload

•

Popular 3-Lead TO-220 Package

Ripple Rejection Typically 80 dB

protection available only in integrated circuits.

Included on the chip are current limit, thermal

overload protection, and safe-area protection. All

overload protection circuitry remains fully

functional even if the adjustment terminal is

disconnected. Normally, no capacitors are

needed unless the device is situated far from the

input filter capacitors in which case an input

bypass is needed. An optional output capacitor

can be added to improve transient response.

Direct Replacement for National

LM317

INPUT

OUTPUT

ADJUST

The primary applications of this device is that of a

programmable output regulator, but by connecting

a fixed resistor between adjustment terminal and

the output terminal, the device can be used as a

precision current regulator. Even though the

regulator is floating and sees only the input-to -

output differential voltage, use of these devices to

regulate output voltages that would cause the

maximum-rated differential voltage to be

TO-220

(Top View)

exceeded if the output became shorted to ground

is not recommended.

• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com •

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