OBSOLETE

LM150QML

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SNVS383B – MARCH 2006 – REVISED APRIL 2013

LM150QML 3-Amp Adjustable Regulators

Check for Samples: LM150QML

1

FEATURES

DESCRIPTION

The LM150 adjustable 3-terminal positive voltage

2

•

Adjustable Output Down to 1.2V

regulator is capable of supplying in excess of 3A over

•

Ensured 3A Output Current

a 1.2V to 33V output range. It is exceptionally easy to

•

Ensured Thermal Regulation

use and requires only 2 external resistors to set the

output voltage. Further, both line and load regulation

•

Output is Short Circuit Protected

are comparable to discrete designs. Also, the LM150

•

Current Limit Constant with Temperature

is packaged in standard transistor package which is

•

86 dB Ripple Rejection

easily mounted and handled.

In

addition

to

higher

performance

than

fixed

APPLICATIONS

regulators, the LM150 offers full overload protection

•

Adjustable Power Supplies

available only in IC's. Included on the chip are current

limit, thermal overload protection and safe area

•

Constant Current Regulators

protection. All overload protection circuitry remains

•

Battery Chargers

fully functional even if the adjustment terminal is

accidentally disconnected.

Normally, no capacitors are needed unless the device

is situated more than 6 inches from the input filter

capacitors in which case an input bypass is needed.

An output capacitor can be added to improve

transient response, while bypassing the adjustment

pin will increase the regulator's ripple rejection.

Besides

replacing

fixed

regulators

or

discrete

designs, the LM150 is useful in a wide variety of

other applications. Since the regulator is “floating”

and sees only the input-to-output differential voltage,

supplies of several hundred volts can be regulated as

long as the maximum input to output differential is not

exceeded, i.e., avoid short-circuiting the output.

By

connecting

a

fixed

resistor

between

the

adjustment pin and output, the LM150 can be used

as a precision current regulator. Supplies with

electronic shutdown can be achieved by clamping the

adjustment terminal to ground which programs the

output to 1.2V where most loads draw little current.

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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

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PRODUCTION DATA information is current as of publication date.

Copyright © 2006–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.