National Semiconductor Corp. (Santa Clara, CA) introduced debuted its new LM5033 100 V, dc-dc, pulse-width modulation (PWM) controller that meets the specifications of the intermediate bus architecture (IBA). The architecture controls the multiple low-voltage power supply rails in complex power systems using digital ASICs, DSPs and FPGAs that are found in telecommunications, automotive and industrial applications.
The LM5033 PWM controller has the flexibility to be used stand-alone in a push-pull bus converter or paired with one or two of National’s LM5100 drivers in a half-bridge or full-bridge converter design. Designed on National’s new Analog-BiCMOS-DMOS high-voltage process technology, the LM5033 operates off a wide range of input voltages from 15 V to 100 V for lower component count and higher efficiency. It also has efficient PWM and gate driver performance at frequencies up to 1 MHz. The 10-lead LLP package has a 4 mm x 4 mm footprint (38 °C/W).
Available now, National’s LM5033 is priced at $1.10 each in 1,000-piece volumes. The LM5100 is also available now in a SOIC or LLP package at $1.35 each in 1,000-piece volumes.