LTC3528
LTC3528B

RECOMMENDED FOR NEW DESIGNS

1A, 1MHz Synchronous Step-Up DC/DC Converters in 3mm x 2mm DFN

Part Models: 4
1ku List Price: Starting From $2.35

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Part Details

Delivers 3.3V at 200mA from a Single Alkaline/NiMH Cell or 3.3V at 400mA from Two Cells
V_IN Start-Up Voltage: 700mV
1.6V to 5.25V V_OUT Range
Up to 94% Efficiency
Output Disconnect
1MHz Fixed Frequency Operation
V_IN > V_OUT Operation
Integrated Soft-Start
Current Mode Control with Internal Compensation
Burst Mode^® Operation with 12µA Quiescent Current (LTC3528)
Low Noise PWM Operation (LTC3528B)
Internal Synchronous Rectier
Logic Controlled Shutdown: <1µA
Anti-Ringing Control
Low Prole (3mm x 2mm x 0.75mm) DFN Package

The LTC3528/LTC3528B are synchronous, fixed frequency step-up DC/DC converters with output disconnect. High efficiency synchronous rectification, in addition to a 700mV start-up voltage and operation down to 500mV once started, provides longer run-time for single or multiple cell battery-powered products.

A switching frequency of 1MHz minimizes solution foot- print by allowing the use of tiny, low prole inductors and ceramic capacitors. The current mode PWM is internally compensated, simplifying the design process. The LTC3528 enters Burst Mode operation at light loads, while the LTC3528B features continuous switching at light loads. Anti-ringing circuitry reduces EMI by damping the inductor in discontinuous mode. Additional features include a low shutdown current, open-drain power good output, short- circuit protection and thermal overload protection.

The LTC3528/LTC3528B are offered in an 8-lead 3mm x 2mm x 0.75mm DFN package.


	Frequency	Burst Mode
LTC3528	1MHz	Yes
LTC3528B	1MHz	No
LTC3528-2	2MHz	Yes
LTC3528B-2	2MHz	No

Applications

Medical Instruments
Flash-Based MP3 Players
Noise Canceling Headphones
Wireless Mice
Bluetooth Headsets

Part Models: 4
1ku List Price: Starting From $2.35

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
LTC3528BEDDB#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3528BEDDB#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3528EDDB#TRMPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3528EDDB#TRPBF	8-Lead DFN (3mm x 2mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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

Tools & Simulations

LTspice 1

LTC3528 - Step-Up (Boost) Regulators

Models for the following parts are available in LTspice:

LTC3528
LTC3528-2
LTC3528B
LTC3528B-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

LTC3528BEDDB | 1A, 1MHz Synchronous Boost Converter with Output Disconnect in DFN PWM Mode

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Product Details

DC1211A-B: Demo Board for the LTC3528/LTC3528B 1A, 1MHz Synchronous Step-Up DC/DC Converters in 3mm × 2mm DFN.

Resources

DC1211A - Design File
1.00M

DC1211A - Schematic
73.00K

DC1211A - Demo Manual
469.00K

LTC3528EDDB | 1A, 1MHz Synchronous Boost Converter with Output Disconnect in DFN Auto Burst Mode

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Product Details

Demonstration circuits 1211A-A and 1211A-B are high efficiency synchronous boost converters capable of operating with an input voltage range from 0.7V to 5.5V. The 3 × 2 mm DFN thermally enhanced package with a 1MHz switching frequency and the 1A internal switches provide a very tiny overall solution. The LTC3528/LTC3528B also features output disconnect and the input voltage can be greater or less than the output voltage.

Resources

DC1211A - Design File
1.00M

DC1211A - Schematic
73.00K

DC1211A - Demo Manual
469.00K

Latest Discussions

4 Years Ago

Part Details

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

Evaluation Kits

Product Details

Resources

Product Details

Resources

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