A6986H - STMicroelectronics

A6986H 2A synchronous step-down switching regulator

The A6986H automotive grade device is a step-down monolithic switching regulator able to deliver up to 2 A DC. The output voltage adjustability ranges from 0.85 V to VIN. The 100% duty cycle capability and the wide input voltage range meet the cold crank and load dump specifications for automotive systems. The “low consumption mode” (LCM) is designed for app.

Features

• AEC-Q100 qualified
• 2 A DC output current
• 4 V to 38 V operating input voltage
• Low consumption mode or low noise mode
• 30 µA IQ at light-load (LCM VOUT = 3.3 V)
• 8 µA IQ-SHTDWN
• Adjustable fSW (250 kHz - 2 MHz)
• Fixed output voltage (3.3 V and 5 V) or adjustable from 0.85 V to VIN
• Embedded output voltage supervisor
• Synchronization
• Adjustable soft-start time
• Internal current limiting
• Overvoltage protection
• Output voltage sequencing
• Peak current mode architecture
• RDS(on) HS = 180 mΩ, RDS(on) LS = 150 mΩ
• Thermal shutdown Applications
• Designed for automotive systems
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