LMR33630ADDAR

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

Key Features

• Functional Safety-Capable
  • Documentation available to aid functional safety system design
• Configured for rugged industrial applications
  • Input voltage range: 3.8 V to 36 V
  • Output voltage range: 1 V to 24 V
  • Output current: 3 A
  • 75-mΩ/50-mΩ R_DS-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
  • Integrated compensation network
• Low EMI and switching noise
  • HotRod™ package
  • Parallel input current paths
• High power conversion at all loads
  • Peak efficiency > 95%
  • Low operating quiescent current of 25 µA
• Flexible system interface
  • Power-good flag and precision enable
• Use TPSM53603 module for faster time to market
• Create a custom design using the LMR33630 with the WEBENCH Power Designer