Features

• AEC-Q100 qualified for automotive applications
  • Temperature grade 1: –40°C to +125°C T_A
• Functional Safety-Capable
  • Documentation available to aid functional safety system design
• Wide input operating range for car and portable battery applications
  • 3.5-V to 45-V Operating range
  • 2.97-V to 16-V When BIAS = VCC
  • Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
  • Input transient protection up to 50 V
• Minimized battery drain
  • Low shutdown current (I_Q ≤ 2.6 μA)
  • Low operating current (I_Q ≤ 480 μA)
• Small solution size and low cost
  • Maximum switching frequency of 2.2 MHz
  • 12-Pin WSON package (3 mm × 2 mm) with wettable flanks
  • Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
  • Minimized undershoot during cranking (start-stop application)
• Higher efficiency with low-power dissipation
  • 100-mV ±7% Low current limit threshold
  • Strong 1.5-A peak standard MOSFET driver
  • Supports external VCC supply
• Avoid AM band interference and crosstalk
  • Optional clock synchronization
  • Dynamically programmable switching frequency from 100 kHz to 2.2 MHz
• Integrated protection features
  • Constant peak current limiting over input voltage
  • Optional hiccup mode short-circuit protection (see the Device Comparison Table)
  • Programmable line UVLO
  • OVP protection
  • Thermal shutdown
• Accurate ±1% accuracy feedback reference
• Programmable extra slope compensation
• Adjustable soft start
• PGOOD indicator
• Create a custom design using the LM5155x with the WEBENCH power designer