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LT1086CM-3.6#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
1
LT1086 Series
sn1086 1086ffs
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
■
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
The LT
®
1086 is designed to provide up to 1.5A output
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 10µF 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
Regulators Adjustable and
Fixed 2.85V, 3.3V, 3.6V, 5V, 12V
■
SCSI-2 Active Terminator
■
High Efficiency Linear Regulators
■
Post Regulators for Switching Supplies
■
Constant Current Regulators
■
Battery Chargers
■
Microprocessor Supply
LT1086 Dropout Voltage
OUTPUT CURRENT (A)
0
0
MINIMUM INPUT/OUTPUT DIFFERENTIAL (V)
1
2
0.5
1
LT1086 • TA02
1.5
INDICATES GUARANTEED TEST POINT
–55°C ≤ T
J
≤ 150°C
0°C ≤ T
J
≤ 125°C
T
J
= –55°C
T
J
= 25°C
T
J
= 150°C
V
IN
≥ 4.75V 3.3V AT 1.5A
*MAY BE OMITTED IF INPUT SUPPLY IS WELL
BYPASSED WITHIN 2" OF THE LT1086
LT1086-3.3
LT1086 • TA01
10µF*
TANTALUM
10µF
TANTALUM
IN OUT
GND
5V to 3.3V Regulator
, LTC and LT are registered trademarks of Linear Technology Corporation.
2
LT1086 Series
sn1086 1086ffs
PRECONDITIONING
UUU
Power Dissipation............................... Internally Limited
Input Voltage* ......................................................... 30V
Operating Input Voltage
Adjustable Devices ........................................... 25V
2.85V Devices .................................................. 18V
3.3V, 3.6V, and 5V Devices ............................... 20V
12V Devices ...................................................... 25V
Operating Junction Temperature Range
“C” Grades
Control Section ...............................0°C to 125°C
Power Transistor............................. 0°C to 150°C
“I” Grades
Control Section .......................... –40°C to 125°C
Power Transistor........................ –40°C to 150°C
“M” Grades
Control Section .......................... –55°C to 150°C
Power Transistor........................ –55°C to 200°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ABSOLUTE MAXIMUM RATINGS
W
WW
U
100% Thermal Shutdown Functional Test.
PACKAGE/ORDER INFORMATION
W
U
U
LT1086CM
LT1086CM-3.3
LT1086CM-3.6
LT1086IM
LT1086IM-3.3
ORDER
PART NUMBER
ORDER
PART NUMBER
LT1086CH
LT1086MH
ORDER
PART NUMBER
ORDER
PART NUMBER
LT1086CK
LT1086CK-5
LT1086CK-12
LT1086IK
LT1086IK-5
LT1086IK-12
LT1086MK
LT1086MK-5
LT1086MK-12
θ
JA
= 150°C/W
2
1
V
IN
CASE
IS OUTPUT
ADJ (GND)*
K PACKAGE
2-LEAD TO-3 METAL CAN
BOTTOM VIEW
θ
JA
= 35°C/W
** WITH PACKAGE SOLDERED TO 0.5IN
2
COPPER AREA
OVER BACKSIDE GROUND PLANE OR INTERNAL POWER
PLANE. θ
JA
CAN VARY FROM 20°C/W TO >40°C/W
DEPENDING ON MOUNTING TECHNIQUE.
V
IN
V
OUT
ADJ
(GND)
†
M PACKAGE
3-LEAD PLASTIC DD
FRONT VIEW
TAB IS
OUTPUT
3
2
1
T PACKAGE
3-LEAD PLASTIC TO-220
FRONT VIEW
TAB IS
OUTPUT
3
2
1
V
IN
V
OUT
ADJ
(GND)
†
θ
JA
= 50°C/W
LT1086CT
LT1086CT-2.85
LT1086CT-3.3
LT1086IT
LT1086IT-5
LT1086IT-12
LT1086CT-3.6
LT1086CT-5
LT1086CT-12
θ
JA
= 30°C/W**
†
For fixed versions.
BOTTOM VIEW
V
IN
V
OUT
(CASE)
ADJ
13
2
H PACKAGE
3-LEAD TO-39 METAL CAN
(Note 1)
* Although the device’s maximum operating voltage is limited, (18V for a
2.85V device, 20V for a 5V device, and 25V for adjustable and12V devices) the
devices are guaranteed to withstand transient input voltages up to 30V. For
input voltages greater than the maximum operating input voltage some
degradation of specifications will occur. For fixed voltage devices operating at
input/output voltage differentials greater than 15V, a minimum external load
of 5mA is required to maintain regulation.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
OBSOLETE PACKAGES
Consider the T Package for Alternate Source
3
LT1086 Series
sn1086 1086ffs
PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference Voltage LT1086, LT1086H I
OUT
= 10mA, T
J
= 25°C, (V
IN
– V
OUT
) = 3V 1.238 1.250 1.262 V
(Note 3) 10mA ≤ I
OUT
≤ 1.5A, (0.5A for LT1086H), 1.5V ≤ (V
IN
– V
OUT
) ≤ 15V ● 1.225 1.250 1.270 V
Output Voltage LT1086-2.85 I
OUT
= 0mA, T
J
= 25°C, V
IN
= 5V 2.82 2.85 2.88 V
(Note 3) 0V ≤ I
OUT
≤ 1.5A, 4.35V ≤ V
IN
≤ 18V ● 2.79 2.85 2.91 V
LT1086-3.3 V
IN
= 5V, I
OUT
= 0mA, T
J
= 25°C 3.267 3.300 3.333 V
4.75V ≤ V
IN
≤ 18V, 0V ≤ I
OUT
≤ 1.5A ● 3.235 3.300 3.365 V
LT1086-3.6 V
IN
= 5V, I
OUT
= 0mA, T
J
= 25°C 3.564 3.600 3.636 V
5V ≤ V
IN
≤ 18V, 0 ≤ I
OUT
≤ 1.5A ● 3.500 3.672 V
4.75V ≤ V
IN
≤ 18V, 0 ≤ I
OUT
≤ 1A, T
J
≥ 0°C 3.500 3.672 V
V
IN
= 4.75V, I
OUT
= 1.5A, T
J
≥ 0°C 3.300 3.672 V
LT1086-5 I
OUT
= 0mA, T
J
= 25°C, V
IN
= 8V 4.950 5.000 5.050 V
0 ≤ I
OUT
≤ 1.5A, 6.5V ≤ V
IN
≤ 20V ● 4.900 5.000 5.100 V
LT1086-12 I
OUT
= 0mA, T
J
= 25°C, V
IN
= 15V 11.880 12.000 12.120 V
0 ≤ I
OUT
≤ 1.5A, 13.5V ≤ V
IN
≤ 25V ● 11.760 12.000 12.240 V
Line Regulation LT1086, LT1086H I
LOAD
= 10mA, 1.5V ≤ (V
IN
– V
OUT
) ≤ 15V, T
J
= 25°C 0.015 0.2 %
● 0.035 0.2 %
LT1086-2.85 I
OUT
= 0mA, T
J
= 25°C, 4.35V ≤ V
IN
≤ 18V 0.3 6 mV
● 0.6 6 mV
LT1086-3.3 4.5V ≤ V
IN
≤ 18V, I
OUT
= 0mA, T
J
= 25°C 0.5 10 mV
● 1.0 10 mV
LT1086-3.6 4.75V ≤ V
IN
≤ 18V, I
OUT
= 0mA, T
J
= 25°C 0.5 10 mV
● 1.0 10 mV
LT1086-5 I
OUT
= 0mA, T
J
= 25°C, 6.5V ≤ V
IN
≤ 20V 0.5 10 mV
● 1.0 10 mV
LT1086-12 I
OUT
= 0mA, T
J
= 25°C, 13.5V ≤ V
IN
≤ 25V 1.0 25 mV
● 2.0 25 mV
Load Regulation LT1086, LT1086H (V
IN
– V
OUT
) = 3V, 10mA ≤ I
OUT
≤ 1.5A, (0.5A for LT1086H)
T
J
= 25°C (Notes 2, 3) 0.1 0.3 %
● 0.2 0.4 %
LT1086-2.85 V
IN
= 5V, 0 ≤ I
OUT
≤ 1.5A, T
J
= 25°C (Notes 2, 3) 3 12 mV
● 620 mV
LT1086-3.3 V
IN
= 5V, 0 ≤ I
OUT
≤ 1.5A, T
J
= 25°C (Notes 2, 3) 3 15 mV
● 725 mV
LT1086-3.6 V
IN
= 5.25V, 0 ≤ I
OUT
≤ 1.5A, T
J
= 25°C (Notes 2, 3) 3 15 mV
● 625 mV
V
IN
= 5V, 0 ≤ I
OUT
≤ 1A, T
J
= 25°C215mV
● 425 mV
LT1086-5 V
IN
= 8V, 0 ≤ I
OUT
≤ 1.5A,
T
J
= 25°C (Notes 2, 3) 5 20 mV
● 10 35 mV
LT1086-12 V
IN
= 15V, 0 ≤ I
OUT
≤ 1.5A,
T
J
= 25°C (Notes 2, 3) 12 36 mV
● 24 72 mV
Dropout Voltage LT1086/-2.85/-3.3/-3.6/-5/-12 ∆V
OUT
, ∆V
REF
= 1%, I
OUT
= 1.5A (Note 4) ● 1.3 1.5 V
(V
IN
– V
OUT
)
LT1086H ∆V
REF
= 1%, I
OUT
= 0.5A (Note 4) ● 0.95 1.25 V
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LT1086CM-3.6#TRPBF

Mfr. #:
Buy LT1086CM-3.6#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
LDO Voltage Regulators 3.6V L/Dropout Pos VR 1.5A
Lifecycle:
New from this manufacturer.
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