SNVA046E January 2002 – December 2021 LM2655
The LM2655 is a high efficiency current -mode controlled PWM step down switching regulator. Efficiencies > 90% are obtained with synchronous operation.
Internal low ON resistance MOSFET and an external N-channel MOSFET provide the highest efficiency design. For cost saving at the expense of some efficiency, the external MOSFET can be replaced with a suitable Shottky diode. (Asynchronous operation). The IC uses patented current sensing circuitry that eliminates the need for an external current sense resistor. A programmable soft start limits start-up current surges and provides a means of sequencing multiple power supplies.
The evaluation board can be obtained by ordering part number LM2655EVAL from your local Texas Instruments sales office, or the TI website at http://www.ti.com.