LTC3528EDDB#TRMPBF

LTC3528 is a synchronous, fixed frequency step-up DC/DC converter 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 footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM is internally compensated, simplifying the design process. 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. It is used in application such as medical instruments, flash-based MP3 players, noise cancelling headphones, wireless mice, Bluetooth headsets etc.

• Burst Mode® operation with 12µA typical quiescent current
• VIN start-up voltage is 700mV
• 1.6V to 5.25V VOUT range
• Output disconnect, VIN <gt/> VOUT operation
• Integrated soft-start. current mode control with internal compensation
• Internal synchronous rectifier
• Logic controlled shutdown is 1µA maximum
• Anti-ringing control
• Operating temperature is -40°C to 125°C
• Package style is 8-lead plastic DFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party