Automotive-Grade CMOS LDO Regulators
In the rapidly expanding ADAS sector, which includes cameras and sensor modules for data acquisition, there is a demand for greater miniaturization.
In response, ROHM developed the BUxxJA2MNVX-C series of automotive-grade 200mA output full CMOS regulators featuring the smallest form factor on the market (1.0mmx1.0mmx0.6mm).
In addition, low power consumption and superior response are provided, making them ideal not only for ADAS-related devices, but power supplies for vehicle radars and instrument panels as well.
Key Feature 1 : Ultra-compact 1mm² form factor
ROHM leverages analog design expertise cultivated over many years along with packaging and process technologies to deliver all LDO regulator characteristics required for automotive applications in an ultra-compact 1mm2 package that reduces mounting area by 55% over conventional 1.5mm square sized products.
In addition, AEC-Q100 qualification delivers automotive-grade reliability, ensuring worry-free use even under harsh noise and temperature environments.
Key Feature 2 : Ultra-compact 1mm² form factor
When seeking to minimize IC size, since it's not possible to use high resistance, which will cause the circuit scale to grow, there is a tendency to increase circuit current. Furthermore, there is a need to improve response characteristics (low output voltage load variation) while reducing power consumption to meet the demands of power supply ICs.
The BUxxJA2MNVX-C series utilizes original circuit technologies (i.e. reference voltage circuit, amp circuit) to reduce current consumption by half (35µA) while providing excellent response (65mV load variation).
Key Feature 3 : Achieves stable operation with external capacitors as low as 0.22µF
Power supply ICs require an external capacitor as a countermeasure against output voltage variations and oscillations during input fluctuations.
In contrast to conventional products, which require a minimum of 1.0µF, ROHM's latest ICs are capable of providing stable output voltage with only 0.22µF, contributing to greater miniaturization.