LMR23630DRRR

The LMR23630 SIMPLE SWITCHER is an easy-to-use 36V, 3A synchronous step-down voltage regulator with a wide input voltage range of 4V to 36V, suitable for various industrial applications that require power regulation from unregulated sources. This device uses peak current mode control to achieve simple control loop compensation and cycle-by-cycle current limiting. It has a quiescent current of 75 μA, making it suitable for battery-powered systems. With an ultra-low shutdown current, the battery life can be further extended. Internal loop compensation means that users do not have to undertake the tedious task of designing loop compensation components. This also helps to minimize the number of external components. The device offers a constant frequency FPWM mode option to achieve low output voltage ripple under light load conditions. The extended product series (HSOIC) of this device provides options with load currents of 1A (LMR23610) and 2.5A (LMR23625) in a pin-to-pin compatible package, which can be used to achieve a simple and optimized PCB layout. The precision enable input simplifies regulator control and system power sequencing. Protection features include cycle-by-cycle current limiting, discontinuous mode short-circuit protection, and thermal shutdown due to excessive power dissipation.

Applications

• Factory and building automation systems: PLC CPU, HVAC control, elevator control
• Asset tracking
• Universal wide input voltage regulation

Key features

• 4V to 36V input voltage range
• 3A continuous output current
• Integrated synchronous rectification
• Current mode control
• Minimum on-time: 60ns
• Built-in compensation for ease of use
• 400kHz switching frequency with adjustable frequency option
• PFM and forced PWM mode options
• Synchronization to external clock frequency
• For PFM option, quiescent current of 75μA at no-load condition
• Soft-start into pre-biased loads
• High duty cycle operation support
• Precision enable input
• Output short-circuit protection with hiccup mode
• Thermal shutdown protection
• 8-pin HSOIC package with PowerPAD
• 12-pin WSON wettable flank package with PowerPAD
• Reduce time-to-market with LMZM33603 module
• Create custom designs with LMR23625 using WEBENCH PowerDesigner