LT1086CT-3.3 Linear Technology, LT1086CT-3.3 Datasheet

IC LDO REG 1.5A 3.3V TO-220-3

LT1086CT-3.3

Manufacturer Part Number
LT1086CT-3.3
Description
IC LDO REG 1.5A 3.3V TO-220-3
Manufacturer
Linear Technology
Datasheet

Specifications of LT1086CT-3.3

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 20V
Voltage - Dropout (typical)
1.3V @ 1.5A
Number Of Regulators
1
Current - Limit (min)
1.5A
Operating Temperature
0°C ~ 150°C
Mounting Type
Through Hole
Package / Case
TO-220-3 (Straight Leads)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output
-

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FEATURES
APPLICATIO S
TYPICAL APPLICATIO
V
3-Terminal Adjustable or Fixed
2.85V, 3.3V, 3.6V, 5V, 12V
Output Current of 1.5A (0.5A for LT1086H)
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
Ripple Rejection >75dB
Available in 3-Pin TO-220 and 3-Pin DD Packages
SCSI-2 Active Terminator
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Constant Current Regulators
Battery Chargers
Microprocessor Supply
IN
4.75V
*MAY BE OMITTED IF INPUT SUPPLY IS WELL
BYPASSED WITHIN 2" OF THE LT1086
10 F*
TANTALUM
U
5V to 3.3V Regulator
IN
LT1086-3.3
GND
U
OUT
LT1086 • TA01
10 F
TANTALUM
3.3V AT 1.5A
Fixed 2.85V , 3.3V, 3.6V, 5V , 12V
Regulators Adjustable and
DESCRIPTIO
The LT
current. 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 several operating points up to a maximum
of 1.5V at maximum output current. Dropout decreases at
lower load currents. On-chip trimming adjusts the refer-
ence/ouput voltage to 1%. Current limit is also trimmed,
minimizing the stress on both the regulator and power
source circuitry under overload conditions.
The LT1086 is pin compatible with older 3-terminal adjust-
able regulators. A minimum 10 F output capacitor is
required on these devices.
The LT1086 offers excellent line and load regulation speci-
fications and ripple rejection exceeds 75dB even at the
maximum load current of 1.5A. The LT1086 is floating
architecture with a composite NPN output stage. All of the
quiescent current and the drive current for the output
stage flows to the load increasing efficiency.
The LT1086 is available in a 3-pin TO-220 package and a
space-saving surface mountable 3-pin DD package.
1.5A Low Dropout Positive
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
1086 is designed to provide up to 1.5A output
0
2
1
0
INDICATES GUARANTEED TEST POINT
U
LT1086 Dropout Voltage
–55 C T
0 C T
0.5
OUTPUT CURRENT (A)
J
J
150 C
125 C
1
LT1086 Series
T
T
T
J
J
J
= – 55 C
= 25 C
= 150 C
LT1086 • TA02
1.5
sn1086 1086ffs
1

Related parts for LT1086CT-3.3

LT1086CT-3.3 Summary of contents

Page 1

... The LT1086 is available in a 3-pin TO-220 package and a space-saving surface mountable 3-pin DD package. , LTC and LT are registered trademarks of Linear Technology Corporation. 3.3V AT 1.5A OUT 10 F TANTALUM LT1086 • ...

Page 2

... V LT1086CM OUT 1 ADJ LT1086CM-3.3 † (GND) LT1086CM-3.6 M PACKAGE 3-LEAD PLASTIC DD LT1086IM = 30 C/W** JA LT1086IM-3.3 2 COPPER AREA ORDER PART NUMBER LT1086CT FRONT VIEW LT1086CT-2. LT1086CT-3 OUT LT1086IT 1 ADJ † (GND) LT1086IT-5 T PACKAGE LT1086IT-12 3-LEAD PLASTIC TO-220 = 50 C/W LT1086CT-3.6 JA LT1086CT-5 LT1086CT-12 sn1086 1086ffs ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T PARAMETER CONDITIONS Reference Voltage LT1086, LT1086H I OUT (Note 3) 10mA I Output Voltage LT1086-2.85 I OUT (Note LT1086-3 4.75V V LT1086-3 ...

Page 4

LT1086 Series ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T PARAMETER CONDITIONS Current Limit LT1086/-2.85/-3.3/-3.6/-5/-12 (V LT1086H Minimum Load Current LT1086/LT1086H Quiescient Current LT1086-2.85 LT1086-3.3 LT1086-3.6 LT1086-5 LT1086-12 Thermal Regulation 30ms pulse A Ripple Rejection ...

Page 5

... Device 150 – INPUT/OUTPUT DIFFERENTIAL (V) LT1086 • TPC03 LT1086 Maximum Power Dissipation* 20 LT1086MK 15 LT1086CT 10 LT1086CK 100 110 120 130 140 150 CASE TEMPERATURE ( C) *AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE LT1086 • TPC06 LT1086-5 Ripple Rejection 0.5V RIPPLE P-P RIPPLE P – OUT 60 ...

Page 6

LT1086 Series W U TYPICAL PERFORMANCE CHARACTERISTICS LT1086-5 Ripple Rejection vs Current 100 120Hz RIPPLE P 20kHz 0.5V RIPPLE P ...

Page 7

W U TYPICAL PERFORMANCE CHARACTERISTICS LT1086H Ripple Rejection 100 RIPPLE – OUT DROPOUT 200 F AT FREQUENCIES < 60Hz 20 ADJ ...

Page 8

LT1086 Series U U APPLICATIONS INFORMATION The LT1086 family of 3-terminal regulators is easy to use and has all the protection features that are expected in high performance voltage regulators. They are short-circuit protected and have safe area protection as ...

Page 9

U U APPLICATIONS INFORMATION plugging and unplugging in the system will not generate current large enough to do any damage. The adjustment pin can be driven on a transient basis 25V, with respect to the output without any device degradation. ...

Page 10

LT1086 Series U U APPLICATIONS INFORMATION Load Regulation Because the LT1086 is a 3-terminal device not possible to provide true remote load sensing. Load regu- lation will be limited by the resistance of the wire connect- ing the ...

Page 11

U U APPLICATIONS INFORMATION In both cases the junction temperature is below the maximum rating for the respective sections, ensuring reliable operation. Junction-to-case thermal resistance for the K and T pack- ages is specified from the IC junction to the ...

Page 12

LT1086 Series U TYPICAL APPLICATIONS 1.2V to 15V Adjustable Regulator V IN LT1086 OUT IN ADJ + C1 *NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS V OUT = 1.25V † R1 Battery ...

Page 13

U TYPICAL APPLICATIONS HEAT SINK 2N6667 Q1 DARLINGTON 10k + + MDA201 4700 F – 130VAC STANCOR TO 90VAC P-8685 HEAT SINK 2N6667 Q2 DARLINGTON 10k + + MDA201 4700 F – *1% FILM RESISTORS MDA = MOTOROLA L1 = ...

Page 14

LT1086 Series U TYPICAL APPLICATIONS Battery Backed Up Regulated Supply V IN OUT LT1086 GND SELECT FOR CHARGE RATE IN OUT LT1086-5 + GND 6. Automatic Light Control V IN LT1086 OUT IN ...

Page 15

... HATCHED AREA IS SOLDER PLATED COPPER HEAT SINK Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. U ...

Page 16

... LT1764/LT1764A 3A, Low Noise, Fast Transient Response, LDOs LT1962 300mA, Low Noise Micropower, LDO LT1963/LT1963A 1.5A, Low Noise, Fast Transient Response, LDOs V LT1964 200mA, Low Noise Micropower, Negative LDO ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 16 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 U ...

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