LTC3528-2

RECOMMENDED FOR NEW DESIGNS

1A, 2MHz Synchronous Step-Up DC/DC Converter in 2mm × 3mm DFN

Analog Devices LTC3528-2 Product Info

10 February 2026 5

Features

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
0.50V to 5.5V Input Range
1.6V to 5.25V V_OUT Range
Up to 94% Efficiency
Output Disconnect
2MHz Fixed Frequency Operation
V_IN > V_OUT Operation

Integrated Soft-Start
Current Mode Control with Internal Compensation
Burst Mode^® Operation with 12μA Quiescent Current
Internal Synchronous Rectifier
Logic Controlled Shutdown: <1μA
Anti-Ringing Control
Low Profile (2mm × 3mm × 0.75mm) DFN Package

Part details & applications

The LTC3528-2 is a synchronous, fixed frequency step-up DC/DC converter with output disconnect. High efficiency synchronous rectification, in addition to a 700mV startup voltage and operation down to 500mV once started, provides longer run-time for single or multiple cell battery-powered products.

A switching frequency of 2MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM is internally compensated, simplifying the design process. The LTC3528-2 enters Burst Mode operation 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 LTC3528-2 is offered in an 8-lead 2mm × 3mm × 0.75mm DFN package.


	Frequency	Burst Mode
LTC3528	1MHz	Yes
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