LMR33620BQRNXRQ1

The LMR33620-Q1 regulator meets automotive standards and is an easy-to-use synchronous step-down DC/DC converter that delivers excellent efficiency for demanding applications. The LMR33620-Q1 can drive up to 2A of load current with input voltages up to 36V. The LMR33620-Q1 provides excellent light-load efficiency and output accuracy in an ultra-small solution size. Features such as a power good flag and precision enable facilitate flexible, easy-to-use solutions across a wide range of applications. The LMR33620-Q1 automatically folds back frequency under light-load conditions to improve efficiency. The device integrates most external components and offers a pin arrangement 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-Q1 is available in a 12-pin 3mm×2mm new VQFN package with wettable flanks.

Applications

• Infotainment systems and instrument clusters: USB charging
• Telematics control units

Key features

• AEC-Q100 qualified for automotive applications: Temperature Grade 1: -40°C to +125°C, TA; functional safety documentation available to support functional safety system design; dedicated to demanding automotive applications
• Input voltage range: 3.8V to 36V
• Output voltage range: 1V to 24V
• Output current: 2A
• 75mΩ/50mΩ RDS-ON power MOSFET
• Peak current mode control
• Ultra-short minimum on-time of 68ns
• Frequency: 400kHz, 1.4MHz, 2.1MHz
• Integrated compensation network
• Low EMI and switching noise
• Hotrod package parallel input current path enables high-efficiency power conversion across all loads, peak efficiency >95%
• Low shutdown quiescent current: 5μA
• Low operating quiescent current: 25μA
• Use LMR33620-Q1 with WEBENCH PowerDesigner to create custom designs