LM73606-Q1

• AEC-Q100 Qualified for Automotive Applications
  • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Device HBM ESD Classification Level 2 kV
  • Device CDM ESD Classification Level C5
• Wettable Flanks QFN Package (WQFN)
• Low EMI and Low Switching Noise
• Low Quiescent Current
  • 0.8 µA in Shutdown (typical)
  • 15 µA in Active Mode With No Load (typical)
• Wide Voltage Conversion Range:
  • t_ON-MIN = 60 ns (typical)
  • t_OFF-MIN = 70 ns (typical)
• Low MOSFET ON-Resistance:
  • R_{DS_ON_HS} = 53 mΩ (typical)
  • R_{DS_ON_LS} = 31 mΩ (typical)
• Adjustable Frequency Range: 350 kHz to 2.2 MHz
• Pin-Selectable Auto Mode or Forced PWM Mode
• Start-up into Pre-Biased Load, Fixed or Adjustable Soft-Start Time, and Tracking
• Synchronizable to External Clock, Internal Compensation, Power-Good Flag, and Precision Enable
• Cycle-by-Cycle Current Limiting, Hiccup, UVLO, and Thermal Shutdown Protections
• Create a Custom Design With the WEBENCH^® Power Designer using LM73605-Q1 or LM73606-Q1

All trademarks are the property of their respective owners.

The LM73605-Q1/LM73606-Q1 family of devices are easy-to-use synchronous step-down DC-DC converters capable of driving up to 5 A (LM73605-Q1) or 6 A (LM73606-Q1) of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605-Q1/LM73606-Q1 provide exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization to an external clock, FPWM option, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load and optional external bias improve efficiency over the entire load range. The family requires few external components and has a pinout designed for simple PCB layout with optimal EMI and thermal performance. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limiting, and hiccup short-circuit protection. The LM73605-Q1 and LM73606-Q1 devices are pin-to-pin compatible for easy current scaling.