Analog Devices LTC7803

Beschreibung

The LTC®7803 is a high performance, 100% Duty Cycle Capable, synchronous step-down DC/DC switching regulator controller that drives an all N-channel power MOSFET stage. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements. A constant frequency current mode architecture allows a phase-lockable switching frequency of up to 3MHz. The LTC7803 operates from a wide 4.5V to 40V input supply range.

Eigenschaften

• Low Operating IQ: 12μA (14V VIN to 3.3V VOUT)
• Wide Input Voltage Range: 4.5V to 40V
• Output Voltage Up to 40V
• Spread Spectrum Operation
• RSENSE or DCR Current Sensing
• PassThru™/100% Duty Cycle Capable
• Programmable Fixed Frequency (100kHz to 3MHz)
• Phase-Lockable Frequency (100kHz to 3MHz)
• Selectable Continuous, Pulse-Skipping, or Low Ripple Burst ModeR Operation at Light Loads
• Low Shutdown IQ: 1.2μA
• Thermally Enhanced 16-Pin 3mm × 3mm QFN and MSOP Packages
• AEC-Q100 Qualification in Progress

Typische Anwendungen

• Telecommunications
• Automotive and Transportation
• Industrial
• Military/Avionics

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers