LMR23610ADDAR

The LMR23610 SIMPLE SWITCHER device is an easy-to-use 36-V, 1-A synchronous step down regulator. With a wide input range from 4 V to 36 V, it is suitable for various applications from industrial to automotive for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 μA makes it suitable for battery-powered systems. An ultra-low 2 μA shutdown current can further prolong battery life. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components. An extended family is available in 2.5 A (LMR23625) and 3 A (LMR23630) load current options in pin-to-pin compatible packages, which allow simple, optimum PCB layout. A precision enable input allows simplification of regulator control and system power sequencing. Protection features include cycle-by-cycle current limit, hiccup-mode short-circuit protection and thermal shutdown due to excessive power dissipation.

Applications

• Factory and Building Automation Systems: PLC CPU, HVAC Control, Elevator Control
• GSM, GPRS Modules for Fleet Management, Smart Grids, and Security
• General Purpose Wide VIN Regulation

Key features

• 4-V to 36-V Input Range
• 1-A Continuous Output Current
• Integrated Synchronous Rectification
• Current Mode Control
• Minimum Switch-On Time: 60 ns
• 400-kHz Switching Frequency With PFM Mode
• Frequency Synchronization to External Clock
• Internal Compensation for Ease of Use
• 75-μA Quiescent Current at No Load
• Soft Start into a Prebiased Load
• High Duty-Cycle Operation Supported
• Precision Enable Input
• Output Short-Circuit Protection With Hiccup Mode
• Thermal Protection
• 8-Pin HSOIC With PowerPAD Package
• Create a Custom Design Using the LMR23610 With the WEBENCH Power Designer