LTC1682

PRODUCTION

Doubler Charge Pumps with Low Noise Linear Regulator

Part Models: 24
1ku List Price: Starting From $2.48

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Overview

Low Output Noise: 60µV_RMS (100kHz BW)
Adjustable or Fixed Boosted Output
Adjustable Output Voltage Range: 2.5V to 5.5V
Fixed Output Voltages: 3.3V, 5V
Wide Input Voltage Range: 1.8V to 4.4V
Uses Small Ceramic Capacitors
No Inductors Required
Output Current up to 50mA
550kHz Switching Frequency
Low Operating Current: 150µA
Low Shutdown Current: 1µA
Internal Thermal Shutdown and Current Limiting
Available in 8-Pin MSOP and SO Packages

The LTC1682/LTC1682-3.3/LTC1682-5 are doubler charge pumps with an internal low noise, low dropout (LDO) linear regulator. These parts are designed to provide a low noise boosted supply voltage for powering noise sensitive devices such as high frequency VCOs in wireless applications.

An internal doubler charge pump converts a 1.8V to 4.4V input to a boosted output, while the internal LDO regulator converts the boosted voltage to a low noise regulated output. The adjustable version allows the user to set V_OUT via external resistors connected to FB. The regulator is capable of supplying up to 50mA of output current. Shutdown reduces the supply current to < 5µA, removes the load from V_IN by disabling the regulator and discharges V_OUTto ground through a 100Ω switch.

The LTC1682 LDO regulator is stable with only 2µF on the output. Small ceramic capacitors can be used, reducing PC board area.

The LTC1682/LTC1682-3.3/LTC1682-5 are short-circuit and over temperature protected. The parts are available in 8-pin MSOP and SO packages.

Applications

VCO Power Supplies in Cellular Phones
2-Way Pagers
Wireless PCMCIA Cards
Portable Medical Instruments
Low Power Data Acquisition
Remote Transmitters

Part Models: 24
1ku List Price: Starting From $2.48

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
LTC1682CMS8#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CMS8#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CMS8-3.3#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CMS8-3.3#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CMS8-5#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CMS8-5#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CS8#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CS8#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CS8-3.3#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CS8-3.3#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CS8-5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682CS8-5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IMS8#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IMS8#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IMS8-3.3#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IMS8-3.3#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IMS8-5#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IMS8-5#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IS8#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IS8#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IS8-3.3#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IS8-3.3#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IS8-5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1682IS8-5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3)
		PCN24_0004_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC1682CMS8#PBF	PRODUCTION
LTC1682CMS8#TRPBF	PRODUCTION
LTC1682CMS8-3.3#PBF	PRODUCTION
LTC1682CMS8-3.3#TRPBF	PRODUCTION
LTC1682CMS8-5#PBF	PRODUCTION
LTC1682CMS8-5#TRPBF	PRODUCTION
LTC1682IMS8#PBF	PRODUCTION
LTC1682IMS8#TRPBF	PRODUCTION
LTC1682IMS8-3.3#PBF	PRODUCTION
LTC1682IMS8-3.3#TRPBF	PRODUCTION
LTC1682IMS8-5#PBF	PRODUCTION
LTC1682IMS8-5#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
LTC1682CMS8#PBF	PRODUCTION
LTC1682CMS8#TRPBF	PRODUCTION
LTC1682CMS8-3.3#PBF	PRODUCTION
LTC1682CMS8-3.3#TRPBF	PRODUCTION
LTC1682CMS8-5#PBF	PRODUCTION
LTC1682CMS8-5#TRPBF	PRODUCTION
LTC1682IMS8#PBF	PRODUCTION
LTC1682IMS8#TRPBF	PRODUCTION
LTC1682IMS8-3.3#PBF	PRODUCTION
LTC1682IMS8-3.3#TRPBF	PRODUCTION
LTC1682IMS8-5#PBF	PRODUCTION
LTC1682IMS8-5#TRPBF	PRODUCTION
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package
		PCN24_0246_Form Material_Report Marking Comparison Delta Qualification Matrix
LTC1682CS8#PBF	PRODUCTION
LTC1682CS8#TRPBF	PRODUCTION
LTC1682CS8-3.3#PBF	PRODUCTION
LTC1682CS8-3.3#TRPBF	PRODUCTION
LTC1682CS8-5#PBF	PRODUCTION
LTC1682CS8-5#TRPBF	PRODUCTION
LTC1682IS8#PBF	PRODUCTION
LTC1682IS8#TRPBF	PRODUCTION
LTC1682IS8-3.3#PBF	PRODUCTION
LTC1682IS8-3.3#TRPBF	PRODUCTION
LTC1682IS8-5#PBF	PRODUCTION
LTC1682IS8-5#TRPBF	PRODUCTION
Oct 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
		PCN22_0255_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC1682CS8#PBF	PRODUCTION
LTC1682CS8#TRPBF	PRODUCTION
LTC1682CS8-3.3#PBF	PRODUCTION
LTC1682CS8-3.3#TRPBF	PRODUCTION
LTC1682CS8-5#PBF	PRODUCTION
LTC1682CS8-5#TRPBF	PRODUCTION
LTC1682IS8#PBF	PRODUCTION
LTC1682IS8#TRPBF	PRODUCTION
LTC1682IS8-3.3#PBF	PRODUCTION
LTC1682IS8-3.3#TRPBF	PRODUCTION
LTC1682IS8-5#PBF	PRODUCTION
LTC1682IS8-5#TRPBF	PRODUCTION
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
		PCN21_0026_Form Material_Report Delta Qualification Matrix
LTC1682CS8#PBF	PRODUCTION
LTC1682CS8#TRPBF	PRODUCTION
LTC1682CS8-3.3#PBF	PRODUCTION
LTC1682CS8-3.3#TRPBF	PRODUCTION
LTC1682CS8-5#PBF	PRODUCTION
LTC1682CS8-5#TRPBF	PRODUCTION
LTC1682IS8#PBF	PRODUCTION
LTC1682IS8#TRPBF	PRODUCTION
LTC1682IS8-3.3#PBF	PRODUCTION
LTC1682IS8-3.3#TRPBF	PRODUCTION
LTC1682IS8-5#PBF	PRODUCTION
LTC1682IS8-5#TRPBF	PRODUCTION

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

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC1682
LTC1682-3.3
LTC1682-5

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.