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LT1085CT-33 Datasheet(PDF) 1 Page - Linear Technology

Part # LT1085CT-33
Description  3A, 5A, 7.5A Low Dropout Positive Fixed Regulators
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1085CT-33 Datasheet(HTML) 1 Page - Linear Technology

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1
LT1083/LT1084/LT1085 Fixed
1083ffd
DEVICE
OUTPUT CURRENT*
LT1083
7.5 Amps
LT1084
5.0 Amps
LT1085
3.0 Amps
*For a 1.5A low dropout regulator see the LT1086 data sheet.
Three-Terminal 3.3V, 3.6V, 5V and 12V
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
Adjustable Versions Available
The LT
®1083 series of positive adjustable regulators are
designed to provide 3A, 5A and 7.5A 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, decreasing at lower load
currents. On-chip trimming adjusts the output voltage to
1%. Current limit is also trimmed, minimizing the stress
on both the regulator and power source circuitry under
overload conditions.
The LT1083 series devices are pin compatible with older
three-terminal regulators. A 10
μF output capacitor is
required on these new devices; however, this is usually
included in most regulator designs.
Unlike PNP regulators, where up to 10% of the output
current is wasted as quiescent current, the LT1083 quies-
cent current flows into the load, increasing efficiency.
3A, 5A, 7.5A Low Dropout
Positive Fixed Regulators
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Constant Current Regulators
Battery Chargers
5V, 7.5A Regulator
Dropout Voltage vs Output Current
FEATURES
DESCRIPTIO
APPLICATIO S
TYPICAL APPLICATIO
VIN ≥ 6.5V
5V AT 7.5A
LT1083-5
LT1083/4/5 TA01
22
μF*
TANTALUM
+
10
μF
+
*REQUIRED FOR STABILITY
OUTPUT CURRENT (A)
0
2
1
0
1083/4/5 TA02
IFULLLOAD/2
IFULLLOAD
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.


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