Datasheet > LM137_08

LM137_08

更新时间： 2024-11-27 04:20:15

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器
页数	文件大小	规格书
18页	1006K
描述
Three-terminal adjustable negative voltage regulators

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LM137_08 数据手册

LM137

LM337

Three-terminal adjustable negative voltage regulators

Features

■ Output voltage adjustable down to V

REF

■ 1.5 A guaranteed output current

■ 0.3 %/V typical load regulation

■ 0.01 %/V typical line regulation

■ Current limit constant with temperature

■ Ripple rejection: 77 dB

TO-3

TO-220

■ Standard 3-lead transistor packages

■ Excellent thermal regulation: 0.002 %/V

■ 50 ppm/°C temperature coefficient

Description

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.

The LM137 series are adjustable 3-terminal

negative voltage regulators capable of supplying

in excess -1.5 A over a -1.2 to -37 V output

voltage range. They are exceptionally easy to use

and require only two external resistors to set the

output voltage. Further, both line and load

regulation are better than standard fixed

regulators. Also, LM137 regulators are supplied in

standard transistor packages which are easily

mounted and handled. In addition to higher

performance than fixed regulators, the LM137

series offer full overload protection available only

in integrated circuits.

Table 1.

Device summary

Part numbers

Order codes

Temperature range

LM137

LM337

LM137K

LM337K

-55 °C to 150 °C

0 °C to 125 °C

July 2008

Rev 3

1/18

www.st.com

12 3 4 5 6 7...18

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