General Description

The ILC7080/81 are 50 or 100mA low dropout (LDO) voltage regulators designed to provide a high performance solution to low power systems.

The devices offer a typical combination of low dropout and low quiescent current expected of CMOS parts, while uniquely providing the low noise and high ripple rejection characteristics usually only associated with bipolar LDO regulators.

The devices have been optimized to meet the needs of modern wireless communications design; Low noise, low dropout, small size, high peak current, high noise immunity. The ILC7080/81 are designed to make use of low cost ceramic capacitors while outperforming other devices that require tantalum capacitors.

Features

• Ultra low 1mV dropout per 1mA load

• 1 output voltage accuracy

• Uses low ESR ceramic output capacitor to minimize noise and output ripple

• Only 100µA ground current at 100mA load

• Ripple rejection up to 85dB at 1kHz, 60dB at 1MHz

• Less than 80µVRMS noise at BW = 100Hz to 100kHz

• Excellent line and load transient response

• Over current / over temperature protection

• Guaranteed up to 80/150mA output current

• Industry standard five lead SOT-23 package

• Fixed 2.85V, 3.0V, 3.3V, 3.6V, 4.7V, 5.0V and adjustable output voltage options

• Metal mask option available for custom voltages between 2.5 to 10V

Applications

• Cellular phones

• Wireless communicators

• PDAs / palmtops / organizers

• Battery powered portable electronics