LMR33620ARNXR

The LMR33620 SIMPLE SWITCHER regulator is an easy-to-use synchronous step-down DC/DC converter that delivers excellent efficiency for demanding industrial applications. The LMR33620 can drive up to 2A of load current from input voltages up to 36V, while providing outstanding light-load efficiency and output accuracy in an ultra-compact solution footprint. Features such as a power-good flag and precision enable facilitate flexible, easy-to-use solutions across a wide range of applications. The LMR33620 automatically folds back its switching frequency under light-load conditions to improve efficiency. Integration eliminates most external components, and the pin arrangement is designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limiting, and hiccup short-circuit protection. The LMR33620 is available in an 8-pin HSOIC package and a next-generation 12-pin 3mm×2mm VQFN package with wettable flanks. An AEC-Q100-qualified version is also available.

Applications

• Motor drive systems: drones, AC inverters, variable frequency drives, servo systems
• Factory and building automation systems: PLC CPUs, HVAC control, elevator control
• General-purpose wide input voltage power supplies

Key features

• Functional Safety documentation support for safety-critical system design
• Input voltage range: 3.8V to 36V
• Output voltage range: 1V to 24V
• Output current: 2A
• Peak current mode control
• Ultra-short minimum on-time of 68ns
• Frequency: 400kHz, 1.4MHz, 2.1MHz
• Junction temperature range: –40°C to +125°C
• Low EMI and low switching noise
• Integrated compensation network
• HotRod package
• Parallel input current path
• High-efficiency power conversion across all load conditions
• Peak efficiency >95%
• Operating quiescent current as low as 25μA
• Flexible system interface
• Power Good flag and precision enable pin
• Reduce time-to-market with TPSM53602 module
• Create custom designs with LMR33620 and WEBENCH Power Designer