LTC3539
LTC3539-2

RECOMMENDED FOR NEW DESIGNS

2A, 1MHz/2MHz Synchronous Step-Up DC/DC Converters

Data Sheet Product Selection Table

Part Models: 4
1ku List Price: Starting From $3.01

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Part Details

Delivers 3.3V at 900mA From 2 Alkaline/NiMH Cells
Delivers 5V at 900mA From a Lithium-Polymer Battery
V_IN Start-Up Voltage: 700mV
1.5V to 5.25V V_OUT Range
Up to 94% Efficiency
V_IN > V_OUT Operation
±1.5% Feedback Voltage Tolerance
1MHz (LTC3539) or 2MHz (LTC3539-2) Fixed Frequency Operation
Output Disconnect
Selectable Burst Mode^® or PWM Operation
10μA Quiescent Current
Logic Controlled Shutdown: <1μA
Requires Only 6 External Components
Low Profile (2mm × 3mm × 0.75mm) DFN Package

Part Models: 4
1ku List Price: Starting From $3.01

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
LTC3539EDCB#TRMPBF	8-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3539EDCB#TRPBF	8-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3539EDCB-2#TRMPBF	8-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3539EDCB-2#TRPBF	8-Lead DFN (2mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC3539
LTC3539-2

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

LTC3539EDCB-2 Demo Board | 2MHz, 0.7V ≤ VIN ≤ 5.5V, VOUT = 1.8V/3.3V/5V @ 0.9A

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Product Details

Demonstration circuits 1260A-A and 1260A-B are high-efficiency synchronous boost converters capable of operating with an input voltage range from 0.7V to 5.5V using the LTC3539 and LTC3539-2 respectively. The 2 × 3 mm DFN thermally enhanced package with a 1MHz switching frequency (2MHz for the -2 part) and the 2A internal switches provide a very tiny overall solution.

Jumpers are provided for selecting 1.8V, 3.3V or 5V at the output and the circuit can provide 300mA at 3.3V from a 1.5V input and can provide up to 900mA depending on the input and output voltage used.