High voltage regulator transistors improve power density
The ZXTR2000 family of high voltage regulators from Diodes is designed to boost power circuit densities through reductions in component count and footprint.
It does this by monolithically integrating a transistor, Zener diode and resistor into a standard SOT89 package. Principle applications for the devices are in networking, telecom and Power over Ethernet (PoE).
The ZXTR2005Z, ZXTR2008Z and ZXTR2012Z provide designers with high voltage regulation by taking a nominal 48V input and generating fixed output voltages of 5, 8 and 12V, where standard linear regulators cannot be used.
The line and load regulation capabilities within the devices safeguard continuous operation by preventing latch up from transient voltage drops.
Additionally, Diodes says their unique structure allows the input to successfully tolerate spurious voltages up to a maximum of 100V, creating a safety margin in the event of transient over voltage conditions.
