LT1084CTPBF Linear Technology Corporation, LT1084CTPBF Datasheet

LT1084CTPBF

Manufacturer Part Number

LT1084CTPBF

Description

TO-220

Manufacturer

Linear Technology Corporation

Datasheets

1.LT1084CK.pdf (16 pages)

2.LT1084CTPBF.pdf (18 pages)

Specifications of LT1084CTPBF

Date_code

05+

Current page: 1 of 18
Download datasheet (200Kb)

APPLICATIONS

*For a 1.5A low dropout regulator see the LT1086 data sheet.

TYPICAL APPLICATION

FEATURES

3-Terminal Adjustable

Output Current of 3A, 5A or 7.5A

Operates Down to 1V Dropout

Guaranteed Dropout Voltage at Multiple Current Levels

Line Regulation: 0.015%

Load Regulation: 0.1%

100% Thermal Limit Functional Test

Fixed Versions Available

Available in 3-Lead Plastic TO-220, TO-3P and DD

Packages

High Efﬁ ciency Linear Regulators

Post Regulators for Switching Supplies

Constant Current Regulators

Battery Chargers

≥ 6.5V

*REQUIRED FOR STABILITY

DEVICE

LT1083

LT1084

LT1085

10μF

5V, 7.5A Regulator

LT1083

ADJ

OUT

OUTPUT CURRENT*

121Ω

365Ω

7.5A

5.0A

3.0A

10μF*

TANTALUM

1083/4/5 ADJ TA01

5V AT 7.5A

Positive Adjustable Regulators

DESCRIPTION

The LT

designed to provide 7.5A, 5A and 3A with higher efﬁ ciency

than currently available devices. All internal circuitry is

designed to operate down to 1V input-to-output differential

and the dropout voltage is fully speciﬁ ed as a function of

load current. Dropout is guaranteed at a maximum of 1.5V

at maximum output current, decreasing at lower load cur-

rents. On-chip trimming adjusts the reference voltage to

1%. Current limit is also trimmed, minimizing the stress

on both the regulator and power source circuitry under

overload conditions.

The LT1083/LT1084/LT1085 devices are pin compatible

with older 3-terminal regulators. A 10μF output capacitor

is required on these new devices. However, this is included

in most regulator designs.

Unlike PNP regulators, where up to 10% of the output cur-

rent is wasted as quiescent current, the LT1083 quiescent

current ﬂ ows into the load, increasing efﬁ ciency.

All other trademarks are the property of their respective owners.

, LT, LTM and LTM are registered trademarks of Linear Technology Corporation.

7.5A, 5A, 3A Low Dropout

1083 series of positive adjustable regulators are

LT1083/LT1084/LT1085

Dropout Voltage vs Output Current

OUTPUT CURRENT

1083/4/5 ADJ TA02

FULL LOAD

108345fg

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