LM46000

Product Folder Order Now Technical Documents Tools & Software Support & Community LM46000 SNVSA45B – JUNE 2014 – REVISED MARCH 2018 LM46000 3.5-V to 60-V, 0.5-A Synchronous Step-Down Voltage Converter 1 Features 1 24-µA Quiescent Current in Regulation High Efficiency at Light Load (DCM and PFM) Meets EN55022/CISPR 22 EMI standards Integrated Synchronous Rectification Adjustable Frequency Range: 200 kHz to 2.2 MHz (500 kHz default) Frequency Synchronization to External Clock Internal Compensation Stable With Almost Any Combination of Ceramic, Polymer, Tantalum, and Aluminum Capacitors Power-Good Flag Soft-Start into Prebiased Load Internal Soft Start: 4.1 ms Extendable Soft-Start Time by External Capacitor Output Voltage Tracking Capability Precision Enable to Program System UVLO Output Short-Circuit Protection With Hiccup Mode Overtemperature Thermal Shutdown Protection Create a Custom Design Using the LM46000 With the WEBENCH® Power Designer 2 Applications Industrial Power Supplies Telecommunications Systems Sub-AM Band 12-V and 24-V Automotive Commercial Vehicle Power Supplies General Purpose Wide VIN Regulation High Efficiency Point-Of-Load Regulation Simplified Schematic 3 Description The LM46000 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 500 mA of load current from an input voltage range of 3.5 V to 60 V. The LM46000 provides exceptional efficiency, output accuracy and dro...