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3.5V to 36V, 2A Synchronous Step-Down Voltage Converter


Package | PIN: PWP | 16
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.88
10-24 $3.49
25-99 $3.26
100-249 $2.92
250-499 $2.73
500-749 $2.37
750-999 $2.05
1000+ $2.01


  • 27-µA Quiescent Current in Regulation
  • High Efficiency at Light Load (DCM and PFM)
  • Meets EN55022/CISPR 22 EMI standards
  • Integrated Synchronous Rectification
  • Adjustable Frequency Range: 200 kHz to 2.2 MHz (500 kHz Default)
  • Frequency Synchronization to External Clock
  • Internal Compensation
  • Stable with Almost Any Combination of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
  • Power-Good Flag
  • Soft-Start into a Pre-Biased Load
  • Internal Soft Start: 4.1 ms
  • Extendable Soft-Start Time by External Capacitor
  • Output Voltage Tracking Capability
  • Precision Enable to Program System UVLO
  • Output Short Circuit Protection with Hiccup Mode
  • Overtemperature Thermal Shutdown Protection
  • Create a Custom Design Using the LM43602 with the WEBENCH® Power Designer

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Texas Instruments  LM43602PWPT

The LM43602 regulator is an easy-to-use synchronous step-down DC-DC converter capable ofdriving up to 2 A of load current from an input voltage ranging from 3.5 V to 36 V (42-V absolutemaximum). The LM43602 provides exceptional efficiency, output accuracy, and dropout voltage in avery small solution size. An extended family is available in 0.5-A, 1-A, and 3-A load currentoptions in pin-to-pin compatible packages. Peak current-mode control is employed to achieve simplecontrol loop compensation and cycle-by-cycle current limiting. Optional features such asprogrammable switching frequency, synchronization, power-good flag, precision enable, internal softstart, extendable soft start, and tracking provide a flexible and easy-to-use platform for a widerange of applications. Discontinuous conduction and automatic frequency modulation at light loadsimprove light-load efficiency. The family requires few external components and terminal arrangementallows simple, optimum PCB layout. Protection features include thermal shutdown,VCC undervoltage lockout, cycle-by-cycle current limit, and output shortcircuit protection. The LM43602 device is available in a 16-lead HTSSOP package (5.1 mm × 6.6 mm ×1.2 mm) and 16-pin VSON package with wettable flanks.