Analog Devices LTC3103

Description

The LTC®3103 is a high efficiency, monolithic synchronous step-down converter using a current mode architecture capable of supplying 300mA of output current.

The LTC3103 offers two operational modes: automatic Burst Mode operation and forced continuous mode allowing the user the ability to optimize output voltage ripple, noise and light load efficiency. With Burst Mode operation enabled, the typical DC input supply current at no load drops to 1.8μA maximizing the efficiency for light loads. Selection of forced continuous mode provides very low noise constant frequency, 1.2MHz operation.

Additionally, the LTC3103 includes an accurate RUN comparator, thermal overload protection, a power good output and an integrated soft-start feature to guarantee that the power system start-up is well controlled.

Features

• Ultralow Quiescent Current: 1.8μA
• Synchronous Rectification: Efficiency Up to 95%
• nWide VIN Range: 2.5V to 15V
• Wide VOUT Range: 0.6V to 13.8V
• 300mA Output Current
• User-Selectable Automatic Burst Mode® or Forced Continuous Operation
• Accurate and Programmable RUN Pin Threshold
• 1.2MHz Fixed Frequency PWM
• Internal Compensation
• Power Good Status Output for VOUT
• Available in Thermally Enhanced 3mm × 3mm × 0.75mm, 10-Pin DFN and 10-Pin MSOP Packages

Typical applications

• Remote Sensor Networks
• Low Power Wireless Systems
• Energy Harvesters
• Portable Instruments
• Multicell Battery or SuperCap Regulator
• Distributed Power Systems

More information

• Datasheet
• IC product information