General Description
●The LM2736 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6-pin Thin SOT23 package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.
●With a minimum of external components and online design support through WEBENCH™, the LM2736 is easy to use. The ability to drive 750mA loads with an internal 350mΩ NMOS switch using state-of-the-art 0.5µm BiCMOS technology results in the best power density available. The world class control circuitry allows for on-times as low as 13ns, thus supporting exceptionally high frequency conversion over the entire 3V to 18V input operating range down to the minimum output voltage of 1.25V. Switching frequency is internally set to 550kHz (LM2736Y) or 1.6MHz (LM2736X), allowing the use of extremely small surface mount inductors and chip capacitors.
●Features
●■ Thin SOT23-6 package
●■ 3.0V to 18V input voltage range
●■ 1.25V to 16V output voltage range
●■ 750mA output current
●■ 550kHz (LM2736Y) and 1.6MHz (LM2736X) switching frequencies
●■ 350mΩ NMOS switch
●■ 30nA shutdown current
●■ 1.25V, 2% internal voltage reference
●■ Internal soft-start
●■ Current-Mode, PWM operation
●■ WEBENCH online design tool
●Applications
●■ Local Point of Load Regulation
●■ Core Power in HDDs
●■ Set-Top Boxes
●■ Battery Powered Devices
●■ USB Powered Devices
●■ DSL Modems
●■ Notebook Computers
