LT8607IDC#TRPBF

The LT8607 is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator that consumes only 1.7µA of non-switching quiescent current. The LT8607 can deliver 750mA of continuous current. Burst Mode operation enables high efficiency down to very low output currents while keeping the output ripple below 10mVₚ₋ₚ. Internal compensation with peak current mode topology allows the use of small inductors and results in fast transient response and good loop stability. The EN/UV pin has an accurate 1V threshold and can be used to program V₁ₙ undervoltage lockout or to shut down the LT8607 reducing the input supply current to 1µA. The MSOP package includes a SYNC pin to synchronize to an external clock, or to select Burst Mode operation or pulse-skipping with or without spread spectrum; the TR/SS pin programs soft-start or tracking. The DFN package omits these pins and can be purchased in pulse-skipping or Burst Mode operation.

Applications

• General Purpose Step-Down Converter
• Low EMI Step Down

Key features

• Wide Input Voltage Range: 3.0V to 42V
• Ultralow Quiescent Current
• Burst Mode® Operation
• Regulating 12V₁ₙ to 3.3Vₒᵤₜ
• Output Ripple <10mVₚ₋ₚ
• High Efficiency 2MHz Synchronous Operation >93% Efficiency at 0.5A, 12V₁ₙ to 5Vₒᵤₜ
• 750mA Maximum Continuous Output
• Fast Minimum Switch-On Time: 35ns
• Adjustable and Synchronizable: 200kHz to 2.2MHz
• Spread Spectrum Frequency Modulation for Low EMI
• Allows Use of Small Inductors
• Low Dropout Peak Current Mode Operation
• Accurate 1V Enable Pin Threshold
• Internal Compensation
• Output Soft-Start and Tracking
• Small Thermally Enhanced 10-Lead MSOP Package or 8-Lead 2mm × 2mm DFN Package
• AEC-Q100 Qualified for Automotive Applications