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	BD3521FVM / BD3520FVM / BD3504FVM

ROHM's ultra-low saturation linear power supply controllers are optimized to provide a high level of precision and excellent responsiveness for power supplies required by chipset's. The external FET allows customisation of the output current as well as the difference between the input and output voltages. Replace the multiple excessive switching power supplies prevalent in today’s inefficient PC systems with ROHM’s supply controller.

Configure high efficiency power supplies comparable to switching systems

A 5V power supply that drives an external N-channel FET results in ultra-low saturation with a remarkably low input/output voltage difference of 300mA (max. when Io = 10A). Power loss is minimized by lowering the input voltage, making it ideal for lower voltage PC chipset's.

Safe operation with high-speed load response

Original control technology is utilized for the industry's best responsiveness. Suppresses voltage fluctuations and provides stable power supply to low voltage PC chipset's.

Eliminate parts, beginning with switching power supplies

Conventional A Class power supplies often exhibit high saturated voltage and considerable heat generation during high current flow - reasons why switching power supplies are often used. However, ROHM offers a more efficient solution with its lineup of ultra-low saturation power supply controllers, featuring low heat generation (high efficiency) even during high current dray several Amperes). Additional advantages include a reduction in the number of parts required along with mounting area.

ECOMOS™ series

Original low voltage drive processes are used for stable operation at VGS = 1.5V. ON-resistance is greatly reduced compared to conventional 2.5V drives - from 20% to 85%.

BU520□□series

Hall ICs enjoy widespread use due to their high sensitivity and low power consumption. ROHM utilizes Hall ICs not for constant sensing, but for detection within a fixed period, resulting in a current consumption of only 5µA (type.). In addition, CMOS output minimizes power consumption during magnetic detection.

B series for mobile printers

3.3V input interface allows direct drive from an ASIC, simplifying set design while enabling compatibility with common power supplies, contributing to increased energy savings.