New power modules comply with CISPR 22 (Class B) Standard, current sharing enables 60-A of output
National’s modules include new features for current sharing and frequency synchronization. For high-current intermediate rail and FPGA applications, multiple SIMPLE SWITCHER modules can be placed in parallel to achieve output currents from up to 60 A. A synchronization pin enables the modules to operate at the same frequency, controlling switching noise in sensitive systems.
The new SIMPLE SWITCHER power modules are pin-to-pin compatible with other family members. With an integrated shielded inductor, National’s 10 A power modules operate up to an ambient temperature of 70 degrees C with zero air flow. Compliance with the CISPR 22 (Class B) radiated and conducted emissions standard ensures easy PCB design.
National’s 12, easy-to-use power modules provide the efficiency of a synchronous switching regulator with the simplicity of a linear regulator, eliminating the external inductor and complex layout placement challenges typical of switching regulator designs. Each features precision enable and soft-start pins.
Six of the 12 new SIMPLE SWITCHER power modules accept an input voltage rail between 6 V and 36 V and deliver an adjustable and highly accurate output voltage from 0.8 V to 6 V. The LMZ13608 and LMZ13610 drive up to 8 A and 10 A of output current, respectively. Featuring similar output currents, the LMZ23608 and LMZ23610 also include frequency synchronization and current sharing. The LMZ23603 and LMZ23605 drive up to 3 A and 5 A of output current, respectively, and feature frequency synchronization.
The second set of six new SIMPLE SWITCHER modules accept an input voltage rail between 6 V and 20 V and deliver an adjustable and highly accurate output voltage from 0.8 V to 6 V. The LMZ12008 and LMZ12010 drive up to 8 A and 10 A of output current, respectively. Featuring similar output currents, the LMZ22008 and LMZ22010 also include frequency synchronization and current sharing. The LMZ22003 and LMZ22005 drive up to 3 A and 5 A of output current, respectively, and feature frequency synchronization.
Availability and Pricing
National’s power modules are available now in RoHS-compliant TO-PMOD packages with exposed-bottom pad. Modules up to 5A are offered in a 7-pin, 10.16 mm by 13.77 mm by 4.57 mm package and range in cost from $5.50 to $12.50 in quantities of 1,000. Modules greater than 5A are available in an 11-pin, 15 mm by 17.8 mm by 5.9 mm package and range in cost from $10.93 to $18.00 in quantities of 1,000.
To order samples and an evaluation board for National’s SIMPLE SWITCHER power modules, visit www.national.com/switcher_power_modules
Watch a current sharing demonstration featuring the LMZ22010 at https://bit.ly/CurrentShare
Watch a video on the products at https://bit.ly/LMZ10A