Linear regulators boost drive capability

Diodes has introduced a pair of ultra low dropout linear regulators, capable of delivering a continuous 3A output for a dropout voltage of just 0.23mV.

With maximum input voltages of 3.65 and 5.5V respectively, the AP7175 and AP7176B provide an adjustable output voltage suitable for high efficiency systems in a range of products, including notebooks, pcs and set top boxes. To meet the sequencing requirements of fpgas, dsps and other digital devices, both LDOs provide an enable input and power good output, allowing users to configure custom power management solutions with different start up and power down characteristics. When disabled, the devices also facilitate automatic discharge of the output voltage stored on the output capacitor, thereby improving system reliability. The AP7175 and AP7176B also integrate a soft start function that reduces in rush current during the start up period, which is typically 0.6ms. In addition, the LDOs' on board current limit, short circuit and thermal shutdown protection functions ensure connected loads are fully protected against any possible current excesses.