General Description

The MIC5365/6 is an advanced general purpose linear regulator offering high power supply rejection (PSRR) in an ultra-small 1mm x 1mm package. The MIC5366 includes an auto-discharge feature that is activated when the enable pin is low. The MIC5365/6 is capable of sourcing 150mA output current and offers high PSRR making it an ideal solution for any portable electronic application.

Ideal for battery-powered applications, the MIC5365/6 offers 2% initial accuracy, low dropout voltage (155mV @ 150mA), and low ground current (typically 29μA). The MIC5365/6 can also be put into a zero-off-mode current state, drawing virtually no current when disabled.

The MIC5365/6 is available in several advanced packages including a lead-free (RoHS-compliant) 1mm x 1mm Thin MLF® occupying only 1mm2 of PCB area, a 75% reduction in board area compared to SC-70 and 2mm x 2mm MLF® packages. It is also available in a thin SOT23-5 package.

The MIC5365/6 has an operating junction temperature range of –40°C to 125°C.

Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com.

Features

• Tiny 1mm x 1mm thin MLF®, SC-70-5, and thin SOT23-5 packages

• Input voltage range: 2.5V to 5.5V

• 150mA guaranteed output current

• Stable with 1μF ceramic output capacitors

• Low dropout voltage – 155mV @ 150mA

• Excellent load/line transient response

• Low quiescent current – 29μA

• High PSRR – 70dB

• Output discharge circuit – MIC5366

• High output accuracy

– ±2% initial accuracy

• Thermal-shutdown and current-limit protection

Applications

• Mobile phones

• Digital cameras

• GPS, PDAs, PMP, handhelds

• Portable electronics