Product Summary

General Description:The LM1086 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 1.5A of load current. It has the same pin-out as National Semiconductor’s industry standard LM317.
The LM1086 is available in an adjustable version, which can set the output voltage with only two external resistors. It is
also available in six fixed voltages: 1.8V, 2.5V, 2.85V, 3.3V, 3.45V and 5.0V. The fixed versions integrate the adjust
resistors.The LM1086 circuit includes a zener trimmed bandgap reference, current limiting and thermal shutdown.The LM1086 series is available in TO-220, TO-263, and LLP packages. Refer to the LM1084 for the 5A version, and the
LM1085 for the 3A version.

Parametrics

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Input-to-Output Voltage Differential
LM1086-ADJ :29V
LM1086-1.8 :27V
LM1086-2.5 :27V
LM1086-2.85 :27V
LM1086-3.3 :27V
LM1086-3.45 :27V
LM1086-5.0 :25V
Power Dissipation (Note 2) Internally Limited
Junction Temperature (TJ)(Note 3) :150℃
Storage Temperature Range :-65℃ to 150℃
Lead Temperature :260℃, to 10 sec
ESD Tolerance (Note 4) :2000V

Features

Features as below :
(1) Available in 1.8V, 2.5V, 2.85V, 3.3V, 3.45V, 5V and Adjustable Versions;
(2) Current Limiting and Thermal Protection;
(3) Output Current 1.5A;
(4) Line Regulation 0.015% (typical);
(5) Load Regulation

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM1086ISX-3.3
LM1086ISX-3.3
National Semiconductor (TI)
Low Dropout (LDO) Regulators
Data Sheet
0-500: $0.67
500-1000: $0.55
1000-2500: $0.51
2500-5000: $0.49
LM1086ISX-3.3/NOPB
LM1086ISX-3.3/NOPB
National Semiconductor (TI)
Low Dropout (LDO) Regulators 1.5A LDO POS REG
Data Sheet
0-1: $1.17
1-25: $0.95
25-100: $0.85
100-250: $0.76
250-500: $0.66