Switch controller needs no external compensation

Edited by the Electronicstalk editorial team Oct 3, 2005

National Semiconductor has introduced the industry's first SOT-23 synchronous buck switching controller, the LM1770.

National Semiconductor has introduced the industry's first SOT-23 synchronous buck switching controller, the LM1770.

This efficient controller uses constant-on-time control, making it easy to employ because it does not require external compensation.

The LM1770, packaged in the tiny SOT23-5, provides low-voltage point-of-load regulation from standard 5 and 3.3V rails in space-constrained applications such as set-top boxes, cable modems, digital video recorders and printers.

This versatile solution also replaces switching regulators and LDOs in enterprise server and point-of-sale applications where efficiency is crucial.

"With the LM1770, National Semiconductor continues to set the standard in power management with products that offer benchmark performance and are easy to use, accelerating the customer's time to market", said Werner Berns, Product Marketing and Applications Manager Power Management Europe at National Semiconductor.

"The LM1770 allows designers to solve point-of-load regulation issues with a small-footprint solution which reduces power consumption and eliminates compensation components".

Available now, the LM1770 is priced at US $0.95 in 1000-unit quantities.