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LM1085 データシート(PDF) 3 Page - Texas Instruments

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部品番号 LM1085
部品情報  The LM1085 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 3A of load current.
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

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LM1085
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SNVS038G – JULY 1999 – REVISED MARCH 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1) (2)
Maximum Input to Output Voltage Differential
LM1085-ADJ
29V
LM1085-12
18V
LM1085-3.3
27V
LM1085-5.0
25V
Power Dissipation (3)
Internally Limited
Junction Temperature (TJ)
(4)
150°C
Storage Temperature Range
-65°C to 150°C
Lead Temperature
260°C, to 10 sec
ESD Tolerance (5)
2000V
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and the test
conditions, see the Electrical Characteristics.
(2)
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3)
Power dissipation is kept in a safe range by current limiting circuitry. Refer to Overload Recovery in Application Notes.
(4)
The maximum power dissipation is a function of TJ(max) , θJA, and TA. The maximum allowable power dissipation at any ambient
temperature is PD = (TJ(max)–T A)/θJA. All numbers apply for packages soldered directly into a PC board. Refer to Thermal
Considerations in the Application Notes.
(5)
For testing purposes, ESD was applied using human body model, 1.5k
Ω in series with 100pF.
Operating Ratings
(1)
Junction Temperature (TJ)
(2)
−40°C to 125°C
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and the test
conditions, see the Electrical Characteristics.
(2)
The maximum power dissipation is a function of TJ(max) , θJA, and TA. The maximum allowable power dissipation at any ambient
temperature is PD = (TJ(max)–T A)/θJA. All numbers apply for packages soldered directly into a PC board. Refer to Thermal
Considerations in the Application Notes.
Electrical Characteristics
Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the operating junction temperature (TJ)
range of -40°C to +125°C. Minimum and Maximum limits are ensured through test, design, or statistical correlation. Typical
values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only.
Min
Typ
Max
Symbol
Parameter
Conditions
Units
(1)
(2)
(1)
LM1085-ADJ
Reference Voltage
VREF
IOUT = 10mA, VIN−VOUT = 3V
1.238
1.250
1.262
V
(3)
10mA
≤IOUT ≤ IFULL LOAD,1.5V ≤ (VIN−VOUT) ≤ 15V
1.225
1.250
1.270
LM1085-3.3
IOUT = 0mA, VIN = 5V
3.270
3.300
3.330
V
0
≤ IOUT ≤IFULL LOAD, 4.8V≤ VIN ≤15V
3.235
3.300
3.365
LM1085-5.0
Output Voltage
VOUT
IOUT = 0mA, VIN = 8V
4.950
5.000
5.050
V
(3)
0
≤ IOUT ≤ IFULL LOAD, 6.5V ≤ VIN ≤ 20V
4.900
5.000
5.100
LM1085-12
IOUT = 0mA, VIN = 15V
11.880
12.000
12.120
V
0
≤ IOUT ≤ IFULL LOAD, 13.5V ≤ VIN ≤ 25V
11.760
12.000
12.240
(1)
All limits are specified by testing or statistical analysis.
(2)
Typical Values represent the most likely parametric norm.
(3)
IFULL LOAD is defined in the current limit curves. The IFULL LOAD Curve defines the current limit as a function of input-to-output voltage.
Note that 30W power dissipation for the LM1085 is only achievable over a limited range of input-to-output voltage.
Copyright © 1999–2013, Texas Instruments Incorporated
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