LTC3201

PRODUCTION

100mA Ultralow Noise Charge Pump LED Supply with Output Current Adjust

Part Models: 2
1ku List Price: Starting From $2.76

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Overview

Input Noise Filter Minimizes Supply Noise
Constant Frequency Operation
3-Bit LED Current Control
No Inductors
Low Shutdown Current: I_IN < 1µA
Output Current: 100mA
V_IN Range: 2.7V to 4.5V
1.8MHz Switching Frequency
Soft-Start Limits Inrush Current at Turn-On
Short-Circuit and Overtemperature Protected
Available in 10-Pin MSOP Package

The LTC3201 is an ultralow noise, constant frequency, charge pump DC/DC converter specifically designed for powering white LEDs. The part produces a low noise boosted supply capable of supplying 100mA of output current. LED current is regulated for accurate and stable backlighting. A 3-bit DAC provides output current adjust for brightness control.

Low external parts count (one small flying capacitor and three small bypass capacitors) and small MSOP-10 package size make the LTC3201 ideally suited for space constrained applications. An input noise filter further reduces input noise, thus enabling direct connection to the battery. High switching frequency enables the use of small external capacitors.

The LTC3201 contains overtemperature protection and can survive an indefinite output short to GND. Internal soft-start circuitry also prevents excessive inrush current on start-up. A low current shutdown feature disconnects the load from V_IN and reduces quiescent current to less than 1µA.

Applications

White LED Backlighting
Programmable Boost Current Source

Part Models: 2
1ku List Price: Starting From $2.76

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
LTC3201EMS#PBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC3201EMS#TRPBF	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

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
LTC3201EMS#PBF	PRODUCTION
LTC3201EMS#TRPBF	PRODUCTION
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0130_Form Material_Report
LTC3201EMS#PBF	PRODUCTION
LTC3201EMS#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:

LTC3201

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.