LMR33620CQRNXTQ1

1 Features

• 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 36 V – Output Voltage Range: 1 V to 24 V – Output Current: 2 A – 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

– Low EMI and Low Switching Noise

– Integrated Compensation Network

• High-Efficiency Solution

– Peak Efficiency > 95%

– Low Shutdown Quiescent Current of 5 µA – Low Operating Quiescent Current of 25 µA 

• Flexible System Interface

– Power-Good Flag and Precision Enable

• Create a Custom Design Using the LMR33620-Q1 with the WEBENCH® Power Designer

2 Applications

• Infotainment and Cluster

• Telematics Control Unit

3 Description

The LMR33620-Q1 automotive-qualified regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged applications.The LMR33620-Q1 drives up to 2 A of load current from an input of up to 36 V. The LMR33620-Q1 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 LMR33620-Q1 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, cycleby-cycle current limit, and hiccup short-circuit protection. The LMR33620-Q1 is available in a 12-pin 3 mm × 2 mm VQFN package with wettable flanks.

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