LTC3525L-3

RECOMMENDED FOR NEW DESIGNS

400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect

Part Models: 2
1ku List Price: Starting From $2.30

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Part Details

Start-Up at 0.7V Typical, 0.88V Guaranteed
Up to 95% Efficiency
Output Disconnect and Inrush Current Limit
3V Fixed Output Voltage
Delivers 65mA at 3V from a 1V Input or 160mA from a 1.8V Input
Burst Mode^® Operation: I_Q = 7μA
V_IN: 0.5V to 4.5V
Only Three External Components
V_IN > V_OUT Operation
<1μA Shutdown Current
Anti-Ringing Control
Short-Circuit and Overtemperature Protection
Tiny 6-Pin SC70 Package

The LTC3525L-3 is a high efficiency synchronous step-up DC/DC converter with output disconnect that can start up with an input as low as 0.7V. It offers a compact, high efficiency alternative to charge pumps in single cell or dual cell alkaline applications. Only three small external components are required. The LTC3525L-3 generates a fixed 3V output voltage.

The device includes a 0.5Ω N-channel MOSFET switch and a 0.85Ω P-channel synchronous rectifier. Peak switch current ranges from 150mA to 400mA, depending on load, providing enhanced efficiency. Quiescent current is an ultralow 7μA, maximizing battery life in portable applications.

Other features include <1μA shutdown current, anti-ringing control and thermal shutdown. The LTC3525L-3 is available in a tiny 6-pin SC70 package.


	Vout	Min Startup Voltage	Features
LTC3525-3/3.3/5	3V/3.3V/5V	1V	Output Disconnect
LTC3525D-3.3	3.3V	0.85V	Pass Through Mode
LTC3525L-3	3V	0.85V	Output Disconnect

Applications

MP3 Players
Portable Instruments
Glucose Meters
Digital Cameras

Part Models: 2
1ku List Price: Starting From $2.30

Documentation

Data Sheet 1

LTC3525L-3: 400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect Data Sheet 11/22/2010

Reliability Data 1

R415 Reliability Data 03/23/2018

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
LTC3525LESC6-3#TRMPBF	6-Lead SC70	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3525LESC6-3#TRPBF	6-Lead SC70	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC3525-3
LTC3525-3.3
LTC3525-5

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.

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