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3.5V to 36V, 6A Synchronous Step-Down Voltage Converter

Availability: 9,510


Package | PIN: WQFN (RNP) | 30
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $5.76
10-24 $5.19
25-99 $4.84
100-249 $4.34
250-499 $4.05
500-749 $3.53
750-999 $3.05
1,000+ $2.99


  • Synchronous Rectification
  • Wettable Flanks QFN Package (WQFN)
  • Low Quiescent Current
    • 0.8 µA in Shutdown (typical)
    • 15 µA in Active Mode with No Load (typical)
  • Wide Voltage Conversion Range:
    • tON_MIN = 60 ns (typical)
    • tOFF_MIN = 70 ns(typical)
  • Low MOSFET ON-Resistance:
    • RDS_ON_HS = 53 mΩ(typical)
    • RDS_ON_LS = 31 mΩ(typical)
  • External Bias Input to Improve Efficiency
  • Pin-Selectable Auto Mode or Forced PWM Operation
  • Adjustable Frequency Range: 350 kHz to 2.2 MHz
  • Synchronizable to External Clock
  • Internal Compensation
  • Power-Good Flag
  • Precision Enable to Program System UVLO
  • Flexible Soft-Start Features:
    • Start-up into Pre-Biased Load
    • Fixed or Adjustable Soft-Start Time
    • Output Voltage Tracking
  • Cycle-by-Cycle Current Limiting
  • Short-Circuit Protection With Hiccup Mode
  • Thermal Shutdown Protection
  • Create a Custom Design With the WEBENCH® Power Designer using LM73605 or LM73606

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Texas Instruments  LM73606RNPT

The LM73605/LM73606 family of devices are easy-to-use synchronousstep-down DC-DC converters capable of driving up to 5 A (LM73605) or 6 A(LM73606) of load currentfrom a supply voltage ranging from 3.5 V to 36 V. The LM73605/LM73606 provideexceptional efficiency and output accuracy in a very small solution size. Peak current-mode controlis employed. Additional features such as adjustable switching frequency, synchronization to anexternal clock, FPWM option, power-good flag, precision enable, adjustable soft start, and trackingprovide both flexible and easy-to-use solutions for a wide range of applications. Automaticfrequency foldback at light load and optional external bias improve efficiency over the entire loadrange. The family requires few external components and has a pinout designed for simple PCB layoutwith optimal EMI and thermal performance. Protection features include thermal shutdown, inputundervoltage lockout, cycle-by-cycle current limiting, and hiccup short-circuit protection. TheLM73605 and LM73606 devices are pin-to-pin compatible for easy current scaling.