Analog Devices LTC3104

Beschreibung

The LTC®3104 is a high efficiency, monolithic synchronous step-down converter using a current mode architecture capable of supplying 300mA of output current. The LTC3104 includes an integrated, adjustable 10mA LDO to power noise sensitive functions.

The LTC3104 offers two operational modes: automatic Burst Mode operation and forced continuous mode allowing the user 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 2.6μA, maximizing the efficiency for light loads. Selection of forced continuous mode provides very low noise constant frequency, 1.2MHz operation.

Additionally, the LTC3104 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.

Eigenschaften

• Ultralow Quiescent Current: 2.6μA
• Synchronous Rectification Efficiency Up to 95%
• Wide 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
• 10mA Adjustable LDO
• Available in Thermally Enhanced 3mm × 4mm ×
• 0.75mm, 14-Pin DFN and 16-Pin MSOP Packages

Notes:RefTable 1 Minimum Inductance(page 12)Table 2. Representative Inductor Selection (page 13)

Typische Anwendungen

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

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers