LMR33630ADDA

1 Features

• 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 – Peak-Current-Mode Control

– Short Minimum On-Time of 70 ns

– Frequency: 400 kHz, 1.4 MHz, 2.1 MHz

– Junction Temperature Range –40°C to +125°C 

• Integration Simplifies Design and Reduces Size

– Integrated Synchronous Rectification

– Integrated Compensation Network

• Best-in-Class Power Dissipation

– >91% Efficiency at Full Load

– Low Shutdown Quiescent Current of 5 µA – Low Operating Quiescent Current of 24 µA 

• Flexible System Interface

– Power-Good Flag and Precision Enable

• Create a Custom Design Using the LMR33630 with the WEBENCH® Power Designer

2 Applications

• Motor Drive Systems: Drones, AC Inverters, VF Drives, Servos

• Factory and Building Automation Systems: PLC CPU, HVAC Control, Elevator Control

• General Purpose Wide VIN Power Supplies

3 Description

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 is capable of driving 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.

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