Analog Devices LT8342

Description

The LT®8342 is a low IQ, synchronous step-up DC/DC converter. It features a Silent Switcher architecture and optional spread spectrum frequency modulation to minimize electromagnetic interference (EMI) emissions while delivering high efficiencies at high switching frequencies. Output short circuit protection and inrush current reduction are optional.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 PassThru operation (VIN ≥ VOUT) make the LT8342 ideally suited for general-purpose step-up and automotive Pre- Boost applications.

Features

• Silent Switcher™ Architecture
• Ultralow EMI Emissions
• Optional Spread Spectrum Frequency Modulation
• Integrated 40V, 9A Power Switches
• Output Short Protection/Inrush Current Reduction
• Wide Input Voltage Range: 2.8V to 40V
• Output Voltage Programmable up to 36V
• Optional 2 Pins select 21 output voltages
• Low VIN Pin Quiescent Current:
• 350nA In Shutdown; 9μA In Burst Mode; 12μA In PassThru™ (VIN ≥ VOUT)
• 100% Duty Cycle Capability
• Adjustable and Synchronizable: 300kHz to 3MHz
• Pulse-Skipping or Burst Mode at Light Load
• Output Soft-Start and Power Good Monitoring
• Small 24-Lead (4mm × 4mm) LQFN Package

Typical applications

• Automotive and Industrial Power Supplies

More information

• Datasheet
• IC product information