LM63625CAQDRRRQ1

The LM636x5-Q1 is an easy-to-use, synchronous, step-down DC/DC converter designed for rugged automotive applications. The LM636x5-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 shortcircuit protection. The LM636x5-Q1 is available in the HTSSOP 16-pin power package, with PowerPAD, and the WSON 12-pin power package.

Applications

• Automotive infotainment and cluster
• Automotive body electronics and lighting
• Automotive ADAS

Key features

• 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 50-ns minimum on time
• Good EMI performance
• Pseudo-random spread spectrum
• Compatible with CISPR 25
• 23 μA low operating quiescent current
• -40°C to +150°C junction temperature range
• High design flexibility
• Pin selectable VOUT: 3.3 V, 5 V, adjustable 1 V to 20 V
• Pin compatible with the LM63610 and LM63635 (1 A, 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×10 mm for 2.5 A, 2.2 MHz with WSON package
• Highly integrated solution
• Low component count