LM1085 Series

3-A, 29-V, linear voltage regulator

Catalog

3-A, 29-V, linear voltage regulator

Part	Voltage - Output (Min/Fixed)	Current - Output	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]	Protection Features	Package / Case	Voltage Dropout (Max) [Max]	Supplier Device Package	Output Type	Current - Quiescent (Iq)	PSRR	Output Configuration	Number of Regulators	Output Type
Texas Instruments LM1085IS-12/NOPB	12 V	3 A	Surface Mount	-40 °C	125 ¯C	18 V	Over Current Over Temperature	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1.5 V	TO-263 (DDPAK-3)	1.81 mOhm	10 mA	60 dB	Positive	1
Texas Instruments LM1085IS-3.3/NOPB	3.3 V	3 A	Surface Mount	-40 °C	125 ¯C	27 V	Over Current Over Temperature	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1.5 V	TO-263 (DDPAK-3)	1.81 mOhm	10 mA	72 dB	Positive	1
Texas Instruments LM1085ISX-3.3/NOPB	3.3 V	3 A	Surface Mount	-40 °C	125 ¯C	27 V	Over Current Over Temperature	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1.5 V	TO-263 (DDPAK-3)	1.81 mOhm	10 mA	72 dB	Positive	1
Texas Instruments LM1085IT-ADJ/NOPB	1.25 V	3 A	Through Hole	-40 °C	125 ¯C	29 V	Over Current Over Temperature	TO-220-3	1.5 V	TO-220-3		10 mA	75 dB	Positive	1	Adjustable
Texas Instruments LM1085ISX-5.0/NOPB	5 V	3 A	Surface Mount	-40 °C	125 ¯C	25 V	Over Current Over Temperature	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1.5 V	TO-263 (DDPAK-3)	1.81 mOhm	10 mA	68 dB	Positive	1
Texas Instruments LM1085IS-ADJ	1.25 V	3 A	Surface Mount	-40 °C	125 ¯C	29 V	Over Current Over Temperature	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1.5 V	TO-263 (DDPAK-3)		10 mA	75 dB	Positive	1	Adjustable
Texas Instruments LM1085I-ADJ MDC	1.25 V	3 A	Surface Mount	-40 °C	125 ¯C	29 V	Over Current Over Temperature	Die	1.5 V	Diesale		10 mA	75 dB	Positive	1	Adjustable
Texas Instruments LM1085ISX-12/NOPB	12 V	3 A	Surface Mount	-40 °C	125 ¯C	18 V	Over Current Over Temperature	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1.5 V	TO-263 (DDPAK-3)	1.81 mOhm	10 mA	60 dB	Positive	1
Texas Instruments LM1085ISX-ADJ	1.25 V	3 A	Surface Mount	-40 °C	125 ¯C	29 V	Over Current Over Temperature	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	1.5 V	TO-263 (DDPAK-3)		10 mA	75 dB	Positive	1	Adjustable
Texas Instruments LM1085IT-5.0	5 V	3 A	Through Hole	-40 °C	125 ¯C	25 V	Over Current Over Temperature	TO-220-3	1.5 V	TO-220-3	1.81 mOhm	10 mA	68 dB	Positive	1

Catalog

3-A, 29-V, linear voltage regulator

Key Features

• Available in 3.3-V, 5.0-V, 12-V andAdjustable VersionsCurrent Limiting and Thermal ProtectionOutput Current 3 ALine Regulation 0.015% (typical)Load Regulation 0.1% (typical)Available in 3.3-V, 5.0-V, 12-V andAdjustable VersionsCurrent Limiting and Thermal ProtectionOutput Current 3 ALine Regulation 0.015% (typical)Load Regulation 0.1% (typical)

Description

The LM1085 is a regulator with a maximum dropout of 1.5 V at 3 A of load current. It has the same pin-out as TI’s industry standard LM317. Two resistors are required to set the output voltage of the adjustable output voltage version of the LM1085. Fixed output voltage versions integrate the adjust resistors. The LM1085 circuit includes a zener trimmed bandgap reference, current limiting and thermal shutdown. Refer to the LM1084 for the 5A version, and the LM1086 for the 1.5A version. The LM1085 is a regulator with a maximum dropout of 1.5 V at 3 A of load current. It has the same pin-out as TI’s industry standard LM317. Two resistors are required to set the output voltage of the adjustable output voltage version of the LM1085. Fixed output voltage versions integrate the adjust resistors. The LM1085 circuit includes a zener trimmed bandgap reference, current limiting and thermal shutdown. Refer to the LM1084 for the 5A version, and the LM1086 for the 1.5A version.