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SIMPLE SWITCHER® 3.8V to 36V, 3A Synchronous Buck Converter With Ultra-Low EMI


Package | PIN: RNX | 12
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.95
10-24 $3.55
25-99 $3.31
100-249 $2.90
250-499 $2.72
500-749 $2.31
750-999 $1.95
1000+ $1.86


  • Configured for Rugged Industrial Applications
    • Input Voltage Range: 3.8 V to 36V
    • Output Voltage Range: 1 V to 24 V
    • Output Current:3A
    • 75 mΩ/50 mΩ RDS-ON Power MOSFETs
    • Peak-Current-Mode Control
    • Short Minimum On-Time of 68 ns
    • Frequency: 400 kHz, 1.4 MHz,2.1 MHz
    • Junction Temperature Range –40°C to+125°C
    • Low EMI and Low Switching Noise
    • IntegratedCompensation Network
  • High Efficiency Solution
    • Peak Efficiency > 95%
    • Low Shutdown Quiescent Current of 5 µA
    • Low OperatingQuiescent Current of 25 µA
  • Flexible System Interface
    • Power-Good Flag and Precision Enable
  • Create a Custom Design Using the LMR33630 with the WEBENCH® Power Designer

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Texas Instruments  LMR33630ARNXT

The LMR33630SIMPLE SWITCHER®regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-classefficiency for rugged industrial applications. TheLMR33630 is capable of drivingup to 3 A of loadcurrent from an input of up to 36 V. The LMR33630 provides high light load efficiency and output accuracy in avery small solution size. Features such as a power-good flag and precision enable provide bothflexible and easy-to-use solutions for a wide range of applications. The LMR33630 automatically folds back frequency at light load to improveefficiency. Integration eliminates most external components and provides a pinout designed forsimple PCB layout. Protection features include thermal shutdown, input undervoltage lockout,cycle-by-cycle current limit, and hiccup short-circuit protection. The LMR33630 is availablein an 8-pin HSOIC package and in a 12-pin 3 mm × 2 mm VQFNpackage with wettable flanks. This device is also available in anAEC-Q100-qualified version.