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The LMR336x0AP-Q1 automotive-grade regulator is an easy-to-use synchronous step-down DC/DC converter that delivers best-in-class efficiency for demanding applications. The LMR336x0AP-Q1 provides up to 2 A or 3 A of load current from inputs up to 36 V. The LMR336x0AP-Q1 offers high light-load efficiency and output accuracy in a very small solution size. Features such as power-good flag and precision enable provide a flexible and easy-to-use solution for a wide range of applications. The LMR336x0AP-Q1 automatically reduces switching frequency at light loads to improve efficiency. Integration eliminates most external components and provides a pin assignment designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limiting, and hiccup short-circuit protection. The LMR336x0AP-Q1 is available in a 12-pin 3 mm × 2 mm next-generation VQFN package with solderable side flanks.

Applications

• Infotainment and instrument cluster
• Telematics control unit

Key features

• AEC-Q100 qualified for automotive applications:
• Temperature Grade 1: ambient temperature -40°C to +125°C
• Functional safety capable
• Documentation available to aid functional safety system design
• Configured for robust automotive applications:
• Input voltage range: 3.8 V to 36 V
• Output voltage range: 1 V to 24 V
• Output current: 2 A, 3 A
• 75 mΩ/50 mΩ RDS-ON power MOSFETs
• Peak current mode control
• Minimum on-time of 68 ns
• Frequency: 400 kHz, 2.1 MHz
• Integrated compensation network
• Low EMI and switching noise:
• HotRod package
• Parallel input current path
• High power conversion at full load:
• Peak efficiency > 95%
• Shutdown quiescent current as low as 5 μA
• Operating quiescent current as low as 25 μA
• Custom designs using LMR336x0AP-Q1 can be created with the WEBENCH Power Designer