LT3066

Name: LT3066
Brand: Analog Devices
Price: 3.07 USD
Availability: InStock

RECOMMENDED FOR NEW DESIGNS

45V V_IN, 500mA Low Noise, Linear Regulator with Programmable Current Limit and Active Output Discharge

Data Sheet (Rev. B) Product Selection Table

Part Models: 24
1ku List Price: Starting From $3.07

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Overview

Input Voltage Range: 1.8V to 45V
Output Current: 500mA
Active Output Discharge
Dropout Voltage: 300mV
Programmable Precision Current Limit: ±10%
Power Good Flag
Input Filtering for High PSRR
Low Noise: 25μV_RMS (10Hz to 100kHz)
Adjustable Output (V_REF = V_OUT(MIN) = 600mV)
Output Tolerance: ±2% Over Line, Load and Temperature

Stable with Low ESR, Ceramic Output Capacitors (3.3μF Minimum)
Single Capacitor Soft-Starts Reference and Lowers Output Noise
Current Limit Foldback Protection
Shutdown Current: <3μA
Reverse Battery and Thermal Limit Protection
12-Lead 4mm × 3mm DFN and 12-lead MSOP Packages

Part Models: 24
1ku List Price: Starting From $3.07

Documentation

Data Sheet 1

LT3066: 45V V_IN, 500mA Low Noise, Linear Regulator with Programmable Current Limit and Active Output Discharge Data Sheet (Rev.B) 05/09/2016

User Guide 1

DC2437A - Demo Manual 03/11/2016

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
LT3066EDE#PBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EDE#TRPBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EDE-3.3#PBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EDE-3.3#TRPBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EDE-5#PBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EDE-5#TRPBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EMSE#PBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EMSE#TRPBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EMSE-3.3#PBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EMSE-3.3#TRPBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EMSE-5#PBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066EMSE-5#TRPBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IDE#PBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IDE#TRPBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IDE-3.3#PBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IDE-3.3#TRPBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IDE-5#PBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IDE-5#TRPBF	12-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IMSE#PBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IMSE#TRPBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IMSE-3.3#PBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IMSE-3.3#TRPBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IMSE-5#PBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LT3066IMSE-5#TRPBF	12-Lead MSOP w/ EP	Material Declaration Reliability Report 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
LT3066EDE#PBF	PRODUCTION
LT3066EDE#TRPBF	PRODUCTION
LT3066EDE-3.3#PBF	PRODUCTION
LT3066EDE-3.3#TRPBF	PRODUCTION
LT3066IMSE#PBF	PRODUCTION
LT3066IMSE#TRPBF	PRODUCTION
Feb 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper
		PCN25_0017_Form Material_Report
LT3066EMSE#PBF	PRODUCTION
LT3066EMSE#TRPBF	PRODUCTION
LT3066EMSE-3.3#PBF	PRODUCTION
LT3066EMSE-3.3#TRPBF	PRODUCTION
LT3066EMSE-5#PBF	PRODUCTION
LT3066EMSE-5#TRPBF	PRODUCTION
LT3066IDE-3.3#PBF	PRODUCTION
LT3066IDE-3.3#TRPBF	PRODUCTION
LT3066IDE-5#PBF	PRODUCTION
LT3066IDE-5#TRPBF	PRODUCTION
LT3066IMSE-3.3#PBF	PRODUCTION
LT3066IMSE-3.3#TRPBF	PRODUCTION
LT3066IMSE-5#PBF	PRODUCTION
LT3066IMSE-5#TRPBF	PRODUCTION
Feb 4, 2020 - 20_0129 Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0129_Form Material_Report
LT3066EMSE#PBF	PRODUCTION
LT3066EMSE#TRPBF	PRODUCTION
LT3066EMSE-3.3#PBF	PRODUCTION
LT3066EMSE-3.3#TRPBF	PRODUCTION
LT3066EMSE-5#PBF	PRODUCTION
LT3066EMSE-5#TRPBF	PRODUCTION
LT3066IMSE#PBF	PRODUCTION
LT3066IMSE#TRPBF	PRODUCTION
LT3066IMSE-3.3#PBF	PRODUCTION
LT3066IMSE-3.3#TRPBF	PRODUCTION
LT3066IMSE-5#PBF	PRODUCTION
LT3066IMSE-5#TRPBF	PRODUCTION

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Hot Swap Controllers 1
LT4363	RECOMMENDED FOR NEW DESIGNS	High Voltage Surge Stopper with Current Limit

Parts	Product Life Cycle	Description
LT3061 Series	RECOMMENDED FOR NEW DESIGNS	45V V_IN, Micropower, Low Noise, 100mA LDO with Active Output Discharge
LT3063	RECOMMENDED FOR NEW DESIGNS	45V V_IN, Micropower, Low Noise, 200mA LDO with Active Output Discharge

Tools & Simulations

LTspice 1

LT3066 Demo Circuit - 3.3V Supply with 497mA Precision Current Limit (3.6-45V to 3.3V @ 450mA)

Models for the following parts are available in LTspice:

LT3066

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

LT3066 Demo Board | Low Noise Linear Regulator, Active Output Discharge, 1.8V ≤ VIN ≤ 45V, VOUT = 1.2/1.5/1.8/2.0/2.5/3.3/5V @ 500mA

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Product Details

Demonstration circuit 2437A is an adjustable 500mA linear regulator featuring the LT3066. The LT3066 is a micropower, low noise and low dropout voltage linear regulator that operates over a 1.8V to 45V input voltage range. The device supplies 500mA of output current with a typical dropout voltage of 300mV. Jumper-selectable output voltages include 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V and 5V. A 10nF bypass capacitor reduces output noise to 25μV_RMS across a 10Hz to 100kHz bandwidth and soft-starts the reference. The LT3066’s ±45V input voltage rating combined with its precision current limit make the IC an ideal choice for robust, high reliability applications. LT3066 features an NMOS pull-down that discharges the output if SHDN or IN is driven low.