Analog Devices LT8336

Beschreibung

The LT8336 is a low IQ, synchronous step-up DC/DC converter. It features Silent Switcher architecture and optional spread spectrum frequency modulation to minimize EMI emissions while delivering high efficiencies at high switching frequencies.The wide input/output voltage range, low VIN pin quiescent current in Burst Mode operation, and 100% duty cycle capability for the synchronous MOSFET in passthrough operation (VIN ≥ VOUT), make the LT8336 ideally suited for general purpose step-up and automotive preboost applications.The LT8336 integrates 40V, 2.5A power switches, operating at a fixed switching frequency programmable between 300kHz and 3MHz and synchronizable to an external clock. Pulse-skipping or Burst Mode operation can be selected, with or without spread-spectrum frequency modulation, to optimize efficiency and EMI performance.The LT8336 features output soft-start, an output power good flag and output overvoltage lockout.

Eigenschaften

• Silent Switcher® Architecture
• Ultralow EMI Emissions
• Optional Spread Spectrum Frequency Modulation
• Integrated 40V, 2.5A Power Switches
• Wide Input/Output Voltage Range: 2.7V to 40V
• Low VIN Pin Quiescent Current:
• 0.3µA in Shutdown
• 4µA in Burst Mode® Operation
• 15µA in Pass Through (VIN > VOUT)
• 100% Duty Cycle Capability for Synchronous MOSFET
• Adjustable and Synchronizable: 300kHz to 3MHz
• Pulse-Skipping or Burst Mode Operation at Light Load
• Output Soft-Start and Power Good Monitor
• Internal Compensation
• Accurate 1V Enable Pin Threshold
• Small 16-Lead (3mm × 3mm) LQFN Package
• AEC-Q100 Qualification in Progress

Typische Anwendungen

• Automotive and Industrial Power Supplies / General Purpose Step-Up

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers