LT1965

RECOMMENDED FOR NEW DESIGNS

1.1A, Low Noise, Low Dropout Linear Regulator

Data Sheet Product Selection Table

Part Models: 74
1ku List Price: Starting From $2.28

Viewing:

Part Details

Output Current: 1.1A
Dropout Voltage: 310mV
Low Noise: 40μV_RMS (10Hz to 100kHz)
500μA Quiescent Current (Adjustable Version)
Wide Input Voltage Range: 1.8V to 20V
No Protection Diodes Needed
Controlled Quiescent Current in Dropout
Adjustable Output from 1.20V to 19.5V
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V
< 1μA Quiescent Current in Shutdown
Stable with 10μF Output Capacitor
Stable with Ceramic or Tantalum Capacitors
Reverse-Battery Protection
No Reverse Current
Current Limit with Foldback Protection
Thermal Limiting
5-Lead TO-220, DD-Pak, Thermally Enhanced 8-Lead MSOP and 8-Lead 3mm × 3mm DFN Packages

Part Models: 74
1ku List Price: Starting From $2.28

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LT1965EDD#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EDD#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EDD-1.5#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EDD-1.5#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EDD-1.8#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EDD-1.8#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EDD-2.5#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EDD-2.5#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EDD-3.3#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EDD-3.3#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E-1.5#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E-1.5#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E-1.8#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E-1.8#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E-2.5#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E-2.5#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E-3.3#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EMS8E-3.3#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ-1.5#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ-1.5#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ-1.8#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ-1.8#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ-2.5#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ-2.5#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ-3.3#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965EQ-3.3#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965ET#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965ET-1.5#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965ET-1.8#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965ET-2.5#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965ET-3.3#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965HQ#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965HQ#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965HT#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD-1.5#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD-1.5#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD-1.8#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD-1.8#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD-2.5#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD-2.5#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD-3.3#PBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IDD-3.3#TRPBF	LFCSP:LEADFRM CHIP SCALE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E-1.5#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E-1.5#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E-1.8#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E-1.8#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E-2.5#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E-2.5#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E-3.3#PBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IMS8E-3.3#TRPBF	EXPOSED PAD MINI_SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ-1.5#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ-1.5#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ-1.8#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ-1.8#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ-2.5#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ-2.5#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ-3.3#PBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IQ-3.3#TRPBF	SRF MT PWR MOLY TAB BENT L	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IT#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IT-1.5#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IT-1.8#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IT-2.5#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IT-3.3#31PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1965IT-3.3#PBF	N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper
		PCN25_0017_Form Material_Report Qualification Results Summary
LT1965EDD-1.5#PBF	PRODUCTION
LT1965EDD-1.5#TRPBF	PRODUCTION
LT1965EDD-1.8#PBF	PRODUCTION
LT1965EDD-1.8#TRPBF	PRODUCTION
LT1965IDD-1.5#PBF	PRODUCTION
LT1965IDD-1.5#TRPBF	PRODUCTION
LT1965IDD-1.8#PBF	PRODUCTION
LT1965IDD-1.8#TRPBF	PRODUCTION
LT1965IDD-3.3#PBF	PRODUCTION
LT1965IDD-3.3#TRPBF	PRODUCTION
Feb 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper
		PCN25_0017_Form Material_Report Qualification Results Summary
LT1965EDD-2.5#PBF	PRODUCTION
LT1965EDD-2.5#TRPBF	PRODUCTION
LT1965EDD-3.3#PBF	PRODUCTION
LT1965EDD-3.3#TRPBF	PRODUCTION
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)
		PCN24_0003_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT1965EMS8E#PBF	PRODUCTION
LT1965EMS8E#TRPBF	PRODUCTION
LT1965EMS8E-1.5#PBF	PRODUCTION
LT1965EMS8E-1.5#TRPBF	PRODUCTION
LT1965EMS8E-1.8#PBF	PRODUCTION
LT1965EMS8E-1.8#TRPBF	PRODUCTION
LT1965EMS8E-2.5#PBF	PRODUCTION
LT1965EMS8E-2.5#TRPBF	PRODUCTION
LT1965EMS8E-3.3#PBF	PRODUCTION
LT1965EMS8E-3.3#TRPBF	PRODUCTION
LT1965IMS8E#PBF	PRODUCTION
LT1965IMS8E#TRPBF	PRODUCTION
LT1965IMS8E-1.5#PBF	PRODUCTION
LT1965IMS8E-1.5#TRPBF	PRODUCTION
LT1965IMS8E-1.8#PBF	PRODUCTION
LT1965IMS8E-1.8#TRPBF	PRODUCTION
LT1965IMS8E-2.5#PBF	PRODUCTION
LT1965IMS8E-2.5#TRPBF	PRODUCTION
LT1965IMS8E-3.3#PBF	PRODUCTION
LT1965IMS8E-3.3#TRPBF	PRODUCTION
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0128_Form Material_Report
LT1965EMS8E#PBF	PRODUCTION
LT1965EMS8E#TRPBF	PRODUCTION
LT1965EMS8E-1.5#PBF	PRODUCTION
LT1965EMS8E-1.5#TRPBF	PRODUCTION
LT1965EMS8E-1.8#PBF	PRODUCTION
LT1965EMS8E-1.8#TRPBF	PRODUCTION
LT1965EMS8E-2.5#PBF	PRODUCTION
LT1965EMS8E-2.5#TRPBF	PRODUCTION
LT1965EMS8E-3.3#PBF	PRODUCTION
LT1965EMS8E-3.3#TRPBF	PRODUCTION
LT1965IMS8E#PBF	PRODUCTION
LT1965IMS8E#TRPBF	PRODUCTION
LT1965IMS8E-1.5#PBF	PRODUCTION
LT1965IMS8E-1.5#TRPBF	PRODUCTION
LT1965IMS8E-1.8#PBF	PRODUCTION
LT1965IMS8E-1.8#TRPBF	PRODUCTION
LT1965IMS8E-2.5#PBF	PRODUCTION
LT1965IMS8E-2.5#TRPBF	PRODUCTION
LT1965IMS8E-3.3#PBF	PRODUCTION
LT1965IMS8E-3.3#TRPBF	PRODUCTION
Aug 10, 2022 - 22_0175 Laser Top Mark Conversion for DDPAK & TO220 Packages Assembled in ADPG. Country of Origin Code [MY] To Be Incorporated On Top Mark
		PCN22_0175_Form Material_Report Delta Qualification Matrix
LT1965EQ#PBF	PRODUCTION
LT1965EQ#TRPBF	PRODUCTION
LT1965EQ-1.5#PBF	PRODUCTION
LT1965EQ-1.5#TRPBF	PRODUCTION
LT1965EQ-1.8#PBF	PRODUCTION
LT1965EQ-1.8#TRPBF	PRODUCTION
LT1965EQ-2.5#PBF	PRODUCTION
LT1965EQ-2.5#TRPBF	PRODUCTION
LT1965EQ-3.3#PBF	PRODUCTION
LT1965EQ-3.3#TRPBF	PRODUCTION
LT1965ET#PBF	PRODUCTION
LT1965ET-1.5#PBF	PRODUCTION
LT1965ET-1.8#PBF	PRODUCTION
LT1965ET-2.5#PBF	PRODUCTION
LT1965ET-3.3#PBF	PRODUCTION
LT1965HQ#PBF	PRODUCTION
LT1965HQ#TRPBF	PRODUCTION
LT1965HT#PBF	PRODUCTION
LT1965IQ#PBF	PRODUCTION
LT1965IQ#TRPBF	PRODUCTION
LT1965IQ-1.5#PBF	PRODUCTION
LT1965IQ-1.5#TRPBF	PRODUCTION
LT1965IQ-1.8#PBF	PRODUCTION
LT1965IQ-1.8#TRPBF	PRODUCTION
LT1965IQ-2.5#PBF	PRODUCTION
LT1965IQ-2.5#TRPBF	PRODUCTION
LT1965IQ-3.3#PBF	PRODUCTION
LT1965IQ-3.3#TRPBF	PRODUCTION
LT1965IT#PBF	PRODUCTION
LT1965IT-1.5#PBF	PRODUCTION
LT1965IT-1.8#PBF	PRODUCTION
LT1965IT-2.5#PBF	PRODUCTION
LT1965IT-3.3#31PBF	PRODUCTION
LT1965IT-3.3#PBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Hardware Ecosystem

Parts	Product Life Cycle	Description
LDO Linear Regulators 1
LT3080	RECOMMENDED FOR NEW DESIGNS	Adjustable 1.1A Single Resistor Low Dropout Regulator
Protection Switches & Controllers 1
LT4363	RECOMMENDED FOR NEW DESIGNS	High Voltage Surge Stopper with Current Limit

Parts	Product Life Cycle	Description
LT1963A Series	RECOMMENDED FOR NEW DESIGNS	1.5A, Low Noise, Fast Transient Response LDO Regulators
LT3080	RECOMMENDED FOR NEW DESIGNS	Adjustable 1.1A Single Resistor Low Dropout Regulator

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LT1965
LT1965-1.5
LT1965-1.8
LT1965-2.5
LT1965-3.3
LT1965B

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LT1965EDD Demo Board | Low Noise, Low Dropout Linear Regulator, 2.3V ≤ VIN ≤ 20V, VOUT = 1.2V/1.5V/1.8V/2.5V/3.3V @ 1.1A

Buy Now View Details

Product Details

Demonstration circuit 1172A is a low dropout linear regulator featuring the LT1965 in the 3 × 3 DFN-8 package. The demo board has an input voltage range from 2.3V to 20V, and is capable of delivering up to 1.1A of output current. The output voltage is jumper-selectable and can be set to 1.2V, 1.5V, 1.8V, 2.5V, 3.3V or a user-determined value.

Resources

DC1172A - Schematic
9/24/2009

DC1172A - Design File
9/24/2009

DC1172A - Demo Manual
9/24/2009

Reference Designs

Arria 10 (Rev E3- Linear Technology) Dev Kit

View Detailed Reference Design

Features and Benefits

Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
Our reference designs are supported by an intuitive design tool set and IP
Our team can provide designs for quick prototypes that can speed time to market in the most complex applications