LM63625-Q1

• AEC-Q100-Qualified for automotive applications
  • Device temperature grade 1: –40°C to +125°C ambient operating temperature
• Functional safety capable
  • Documentation available to aid functional safety system design
• Supports automotive system requirements
  • Input voltage range: 3.5 V to 36 V
  • Short minimum on-time of 50 ns
  • Good EMI performance
    Pseudo-random spread spectrum
    Compatible with CISPR 25
  • Low operating quiescent current of 23 µA
  • Junction temperature range –40°C to +150°C
• High design flexibility
  • Pin selectable V_OUT: 3.3 V, 5 V, adjustable
    1 V to 20 V
  • Pin compatible with LM63610/LM63635 (1A, 3.25 A)
  • Pin selectable frequency: 400 kHz, 2.1 MHz,
    adjustable 250 kHz to 2200 kHz
  • Pin selectable FPWM, AUTO, sync modes
  • TSSOP: Thermally-enhanced package
  • WSON: For space-constrained applications
• Small solution size
  • As small as: 10 mm x 10 mm for 2.5 A, 2.2 MHz with WSON package
  • Highly integrated solution
  • Low component count

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The LM636x5D-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter designed for rugged automotive applications. The LM636x5D-Q1 can drive up to 1.5-A or 2.5-A of load current from an input of up to 36 V. The converter has high light load efficiency and output accuracy in a small solution size. Features such as a RESET flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency while maintaining tight load regulation. Integration eliminates many external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LM636x5D-Q1 is available in both the HTSSOP 16-pin power package, with PowerPAD™, and the WSON 12-pin power package.