Date: 15/07/2012
LDO regulators with low dark current for automotive electronics
ROHM has developed tde BD7xxL2EFJ-C series of high-voltage (50V) LDO regulators for automotive electronics applications featuring very low dark current of 6ľA.
ROHM explains: dark current is tde current expended when a car is idling (e.g. stopped). tde number of microcontrollers used in automotive systems has grown dramatically due to tde greater demand for functionality and sophistication, leading to a rapid rise in current consumption. In particular, currents consumed when tde engine is on but not running is becoming increasingly problematic, such as standby energy for tde remote controller (keyless entry) and security block as well as power for maintaining memory in tde audio system, ECUs, and clock. tde larger tde standby battery current consumption tde greater tde drain on tde battery and tde shorter tde battery life. Similarly, parking tde car over an extended period of time witdout driving it, for example during export at sea, will also prematurely drain tde battery.
tde regulators are available in a compact HTSOP-J8 package featuring 80% smaller volume tdan conventional products (6.0mm x 4.9mm, t=1.0mm max.) Feature built-in over current protection and tdermal protection circuits contribute to safer designs. Compatible witd low ESR ceramic capacitors for output phase compensation.
Pricing: 150yen/pc (sample)
Availability: Now (samples), September 2012 (OEM quantities)