2A, 2.4 MHz Asynchronous Buck Regulator with Wide Input Voltage and Low Iq

• Automotive AEC-Q100 qualified
• Wide operating voltage range: 4.7 to 36 V
• UVLO stop threshold is at 3.8 V (typ)
• Supports 40 V input for surge and load dump testing
• Capable of at least 2.0 A steady-state output current
• Adjustable output voltage as low as 0.8 V
• Internal 70 mΩ high-side switching MOSFET
• Adjustable switching frequency, fSW: 0.25 to 2.4 MHz
• Synchronization to external clock: 1.2 × f_SW to 1.5 × f_SW
• Sleep mode supply current less then 3 µA
• Soft start time externally set via the SS pin
• Very low no-load current, typically 3.5 mA
• Pre-bias startup compatible
• Power OK (POK) output
• Pulse-by-pulse current limiting (OCP)
• Hiccup mode short-circuit protection (HIC)
• Overtemperature protection (TSD)
• Overvoltage protection (OVP)
• Missing asynchronous diode (D1) protection
• Open-circuit and adjacent pin short-circuit tolerant
• Short-to-ground tolerant at every pin
• Externally adjustable compensation
• Stable with ceramic output capacitors

Typical Applications

• GPS/Infotainment
• Automobile Audio
• Home Audio
• Network and Telecom