Description

The LD3980 provides up to 300mA, from 1.7V to 3.6V input voltage. It can deliver a guaranteed 300mA continuous load current with a low 100mV dropout. It is stable with ceramic capacitor. The ultra low drop-voltage, low quiescent current and low noise makes it suitable for low power applications and in battery powered systems. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits.

Feature summary

■ Input voltage from 1.7 to 3.6V

■ Ultra low dropout voltage (130mV typ. at 300mA load)

■ Very low quiescent current (110µA typ. at no load, 130µA max. at 300mA load; max 0.5µA in OFF MODE)

■ Output voltage tolerance: +/- 1.0 @ 25°C, +/- 2.0 full temperature range

■ Guaranteed output current up to 300mA

■ Wide range of output voltage: 0.8V to 3.0V

■ Logic-controlled electronic shutdown

■ Compatible with ceramic capacitor CO = 1µF

■ Internal current and thermal limit

■ Temperature range: -40°C to 85°C