Ultra Low Dropout Linear Regulator

Diodes' global manufacturer and supplier of high-quality, application-specific standard products for a wide range of discrete, logic and analog semiconductor markets, has introduced a dual ultra-low dropout (LDO) linear regulator that provides 3.0A continuous output The leakage voltage is only 0.23mV. With a maximum input voltage of 3.65V and 5.5V, the AP7175 and AP7176B provide an adjustable output voltage suitable for high-efficiency systems in a wide range of products, including laptops, personal computers and set-top boxes.

In order to meet the sequencing requirements of field programmable gate arrays, digital signal processors and other digital devices, both LDOs provide an enable input and a power good output, allowing users to configure custom power management solutions with different startup and power down. specialty. When disabled, the device also facilitates automatic discharge of the output voltage stored in the output capacitor, thereby improving system reliability.

The AP7175 and AP7176B also integrate soft-start functionality to reduce inrush current during startup, typically 0.6ms. When combined with the current limit on the motherboard, short-circuit and thermal shutdown protection features, the soft-start feature ensures that LDOS and the connected load are fully protected to prevent any possible over-current.

Both LDOs are lowering the thermal impedance, providing the industry-standard SO-8EP and smaller exposed paddle package, MSOP-8EP. These packages reduce the junction-to-case temperature difference, allowing the device to deliver high load currents over its entire -40oC to +85oC ambient temperature range.