General Description

The MAX1963/MAX1976 low-dropout linear regulators operate from a +1.62V to +3.6V supply and deliver a guaranteed 300mA continuous load current with a low 100mV dropout. The high-accuracy (±0.5) output voltage is preset to an internally trimmed voltage in the +0.75V to +3.0V range. An active-low, open-drain reset output remains asserted for at least 2.2ms (MAX1963) or 70ms (MAX1976) after the output voltage reaches regulation. These devices are offered in 6-pin thin SOT23 and 6-pin 3mm x 3mm thin DFN packages.

Features

♦ Low 1.62V Minimum Input Voltage

♦ Guaranteed 300mA Output Current

♦ ±2.5 Accuracy Over Load/Line/Temp

♦ Low 100mV Dropout at 300mA Load

♦ 2.2ms (MAX1963) or 70ms (MAX1976) RESET Output Flag

♦ Supply Current Independent of Load and Dropout Voltage

♦ Logic-Controlled Shutdown

♦ Thermal-Overload and Short-Circuit Protection

♦ Preset Output Voltages (0.75V to 3.0V)

♦ Tiny 6-Pin Thin SOT23 Package (<1.1mm High)

♦ Thin 6-Pin TDFN Package (

Applications

Notebook Computers

Cellular and PCS Telephones

Personal Digital Assistants (PDAs)

Hand-Held Computers

Digital Cameras

PCMCIA Cards

CD and MP3 Players