Date: 26/08/2011
Dual output, low power, high PSRR LDOs
Holtek has released its new dual output High PSRR LDO series, the HT72Dxxxx.
Holtek says the device range requires only 30ľA of operating current as well as having an PSRR performance of up to 70dB, when both channels are operative and the maximum input voltage is 7.0V which is higher than most other LDO ICs.
The HT72Dxxxx has a line regulation performance of 0.02%/V with a load regulation of 15mV and the dropout voltage is 340mV at an output current of 300mA. A range of internal protection functions includes short circuit protection, current limit protection and over temperature protection providing the system and the devices with a range of excellent protection features.
Using CMOS technology these dual output LDO regulators are supplied in a fixed voltage range of 1.5V~5V. Due to its high PSRR values and low power consumption, the devices are suitable for a wide selection of battery-powered products such as imaging products, voice products, wireless applications etc.