STMicroelectronics A6986I automotive 38 V, 5W Iso-Buck converter

The A6986I is an automotive-grade device specifically designed for the isolated buck topology. The 100% duty cycle capability and the wide input voltage range meet the cold crank and load dump specifications for automotive systems. The primary output voltage can be accurately adjusted, whereas the isolated secondary output is derived by using a given transformer ratio. No optocoupler is required. The primary sink capability typically up to 1.9 A (even during soft-start) allows a proper energy transfer to the secondary side as well as enabling a tracked soft-start of the secondary output.

Key features

• AEC-Q100 qualified
• 4 V to 38 V operating input voltage
• Operating temperature range: – 40°C to + 135°C for TJ
• 8 µA IQ-SHTDWN

Additional features

• AEC-Q100 qualified
• Operating temperature range:
  • T_j from -40 °C to 135 °C
• Designed for iso-buck topology
• 4 V to 38 V operating input voltage
• Primary output voltage regulation / no optocoupler required
• 1.9 A typical sink peak primary current capability
• Peak current-mode architecture in forced PWM operation
• 300 ns blanking time
• 8 µA IQ-SHTDWN
• Adjustable f_SW and synchronization
• Embedded primary output voltage supervisor
• Adjustable soft-start time
• Internal primary current limiting
• Overvoltage protection
• R_DS(ON) HS = 180 mΩ, R_DS(ON) LS = 150 mΩ
• Thermal shutdown

more information: https://www.st.com/en/power-management/a6986.html

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