Date: 20/01/2011

3A 24V Vout DC/DC converter modules in PCB mountable package

National Semiconductor has introduced three new members as part of its DC/DC converter module family called SIMPLE SWITCHER power modules. The LMZ14201H, LMZ14202H and LMZ14203H target industrial, communications infrastructure and military electronics. These PCB mountable power modules are switching regulator type but to the developer they behave close to a linear regulator in simplicity.

The LMZ14201H, LMZ14202H and LMZ14203H accept an input voltage rail between 6V and 42V and deliver an adjustable and highly accurate output voltage up to 24V. A single resistor adjusts the switching frequency to enable greater flexibility of design.

Pin-to-pin compatible with other family members, the modules integrate a shielded inductor and feature efficiency up to 97 percent. The integrated inductor alleviates EMI concerns as the modules comply with both CISPR 22 Class B radiated and conducted emissions standards.

The LMZ14201H, LMZ14202H and LMZ14203H drive loads from 1A to 3A and are suggested for generating intermediate bus voltages in systems using a distributed point of load (POL) architecture. High efficiency and excellent thermal performance are its highlights.

Packaging, Pricing and Availability
National's power modules are available now in a 7-pin, RoHS compliant, 10.16 mm by 13.77 mm by 4.57 mm package with exposed-bottom pad. Priced in quantities of 500, the LMZ14201H costs $6.50, the LMZ14202H is $7.50 and the LMZ14203H is $9.50.

Editorial Product Rating: ** (Average Plus)