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3.8-V to 36-V, 3-A synchronous step-down voltage converter

Availability: 4,909


Package | PIN: VQFN-HR (RNX) | 12
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.57
10-24 $3.22
25-99 $2.99
100-249 $2.62
250-499 $2.46
500-749 $2.09
750-999 $1.76
1,000+ $1.68


  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C,TA
  • Configured for rugged automotive 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, 2.1MHz
    • Low EMI andlow switching noise
    • Integrated compensation 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-Q1 with the WEBENCH® Power Designer

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Texas Instruments  LMR33630CQRNXTQ1

The LMR33630-Q1 automotive-qualified regulator is an easy-to-use,synchronous, step-down DC/DC converter that delivers best-in-class efficiency for ruggedapplications.The LMR33630-Q1 drives up to3 A of load current from an input of upto 36 V. The LMR33630-Q1provides high light load efficiency and output accuracy in a very small solution size. Featuressuch as a power-good flag and precision enable provide both flexible and easy-to-use solutions fora wide range of applications. The LMR33630-Q1 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-Q1 is available in a 12-pin 3 mm × 2 mm VQFN package with wettable flanks.