LMR23625 Datasheet | Texas Instruments

Features - 4-V to 36-V input range - 2.5-A continuous output current - Integrated synchronous rectification - Current mode control - Minimum switch ON time: 60 ns - 2.1-MHz switching frequency with PFM and forced-PWM-mode options (HSOIC) - 2.1-MHz switching frequency with forced-PWM mode only (WSON) - Frequency synchronization to external clock - Internal pensation 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 Power PAD™ package - 12-Pin WSON wettable flanks package with Power PAD™ - Use the LMZM33603 module for faster time to market - Create a custom design using the LMR23625 with the WEBENCH® Power Designer 2 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 VIN up to 36 V CIN VIN EN/SYNC BOOT AGND CVCC PGND CBOOT L RFBT RFBB VOUT COUT Simplified Schematic 3 Description The LMR23625 SIMPLE SWITCHER® is an easy-touse 36-V, 2.5-A synchronous step-down regulator. With a wide input range from 4 V to 36 V, the device is suitable for various industrial application for power conditioning from unregulated sources. Peak currentmode control is employed to achieve simple controlloop pensation 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 pensation means that the user is free from the tedious task of loop pensation design. This also minimizes the external ponents. The device has an option for fixed-frequency FPWM mode to achieve small output-voltage ripple at light load. An extended family for HSOIC is available in 1-A (LMR23610) and 3-A (LMR23630) load current...