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| 型号： | LT1086MK-12 |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 12V 1.5A TO-3 |
| 标准包装： | 20 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 12V |
| 输入电压： | 最高 25V |
| 电压 - 压降（标准）： | 1.3V @ 1.5A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1.5A |
| 电流 - 限制（最小）： | 1.5A |
| 工作温度： | -55°C ~ 200°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-204AA，TO-3 |
| 供应商设备封装： | TO-3 |
| 包装： | 散装 |
| 其它名称： | Q961092 |
LT1086 Series
1.5A Low Dropout Positive
Regulators Adjustable and
Fixed 2.85V, 3.3V, 3.6V, 5V, 12V
FEATURES
DESCRIPTIO
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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.
APPLICATIO S
The LT1086 is pin compatible with older 3-terminal adjust-
able regulators. A minimum 10 μ F output capacitor is
required on these devices.
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SCSI-2 Active Terminator
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Constant Current Regulators
Battery Chargers
Microprocessor Supply
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
LT1086 Dropout Voltage
2
5V to 3.3V Regulator
INDICATES GUARANTEED TEST POINT
V IN ≥ 4.75V
IN
LT1086-3.3 OUT
3.3V AT 1.5A
–55 ° C ≤ T J ≤ 150 ° C
0 ° C ≤ T J ≤ 125 ° C
GND
10 μ F*
TANTALUM
10 μ F
TANTALUM
1
T J = – 55 ° C
T J = 25 ° C
T J = 150 ° C
LT1086 ? TA01
*MAY BE OMITTED IF INPUT SUPPLY IS WELL
BYPASSED WITHIN 2" OF THE LT1086
0
0
0.5
1
1.5
OUTPUT CURRENT (A)
LT1086 ? TA02
sn1086 1086ffs
1
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