lnd1083 Linear Dimensions Semiconductor, lnd1083 Datasheet

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lnd1083

Manufacturer Part Number
lnd1083
Description
7.5 A, 5 A, 3 A Low Dropout Positive Adjustable Regulators
Manufacturer
Linear Dimensions Semiconductor
Datasheet
• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 •
GENERAL DESCRIPTION
The LND1083/LND1084/LND1085 series of
positive adjustable regulators are designed to
provide 7.5A, 5A and 3A with higher efficiency
than currently available devices. All internal
circuitry is designed to operate down to 1V
input to output differential and the dropout
voltage is fully specified as a function of load
current. Dropout is guaranteed at a maximum
of 1.5V at maximum output current. 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 LND1083/LND1084/LND1085 devices are
pin compatible with older 3 terminal regulators.
A 10µF output capacitor is required on these
new devices: however, this is usually included
in most regulator designs.
TYPICAL APPLICATION DATA
5V, 5A Regulator
7.5 A, 5 A, 3 A Low Dropout Positive Adjustable Regulators
DATA SHEET
FEATURES
APPLICATIONS
Three terminal Adjustable
Output Current of 3A, 5A or 7.5A
Operates Down to 1V dropout
Guaranteed Dropout Voltage at
Multiple Current Levels
0.015% Line regulation
0.01% Load Regulation
100% Thermal Limit Burn-In
High Efficiency Linear Regulators
Post Regulators for Switching
Supplies
Constant Current Regulators
Battery Chargers
www.lineardimensions.com
LND1083/84/85

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lnd1083 Summary of contents

Page 1

... GENERAL DESCRIPTION The LND1083/LND1084/LND1085 series of positive adjustable regulators are designed to provide 7.5A, 5A and 3A with higher efficiency than currently available devices. All internal circuitry is designed to operate down to 1V input to output differential and the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1 ...

Page 2

... DEVICE SELECTION GUIDE • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • K PackageTO-3 Metal Can Bottom View DEVICE LND1083 LND1084 LND1085 LND1083/84/85 P Package TO–3P Plastic Front View MAXIMUM UNITS Internally Limited W 35 ...

Page 3

... )=3V(Note5) out fullload in out T =25ºC j 10mA ≤I ≤ I out fullload , 1.5 V ≤ )=25V(Note 5) in out T =125º C,1000Hrs A T =25º 10Hz ≤f ≤10kHz LND1083/84/85 Min Typ Max Units 1.238 1.250 1.262 * 1.225 1.250 1.270 0.015 0.2 * 0.035 0.2 * 0.05 0.5 * 0.05 0.5 0.1 0.3 * 0.2 0 ...

Page 4

... Note 2: Line and load regulation are guaranteed up to the maximum power dissipation (60W for the LND1083, 45W for the LND1084 (K, P) 30W for the LND1084 (T) and 30W for the LND1085). Power dissipation will not be available over the full input/output voltage range. ...

Page 5

... Stability The circuit design used in the LND1083 series requires the use of an output capacitor as part of the device frequency compensation. The addition of 150 µF aluminum electrolytic µ ...

Page 6

... TYPICAL APPLICATIONS Improving ripple rejection • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • LND1083/84/85 1.2V to 15V adjustable regulator www.lineardimensions.com • ...

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