MIC5392/3

High-Performance Dual 150mA LDO

Revision 1.2

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

January 22, 2013

Revision 1.2

General Description

The MIC5392/3 is a tiny dual low-dropout linear regulator

ideally suited for portable electronics. It is ideal for general

purpose/digital applications

which

require

high-power

supply ripple rejection (PSRR) >60dB, eliminating the need

for a bypass capacitor and providing two enable pins for

maximum flexibility. The MIC5392/3 integrates two high-

performance; 150mA LDOs into a tiny 6-pin, 1.2mm x

1.2mm leadless DFN package, which provides exceptional

thermal package characteristics.

The MIC5392/3 is a µCap design which enables operation

with very small ceramic output capacitors for stability,

thereby reducing required board space and component

cost. The combination of low-drop-out voltage, high power

supply

rejection

and

exceptional

thermal

package

characteristics makes it ideal for powering mobile phones

camera modules, image sensors, PDAs, MP3 players and

audio codec power applications.

The MIC5392/3 is available in fixed-output voltages in the

tiny 6-pin 1.2mm x 1.2mm leadless DFN package which is

only 1.44mm

2

in area. Additional voltage options are

available.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Features

• 2.5V to 5.5V input voltage range

• Two 150mA output current LDOs

• High output accuracy

− ±2% initial accuracy

• Low quiescent current (32µA per LDO)

• Stable with 1µF ceramic output capacitors

• Independent enable pins

• Low dropout voltage (155mV at 150mA)

• Thermal-shutdown protection

• Current-limit protection

• Internal 25

Ω output discharge circuit (MIC5393)

• 1.2mm × 1.2mm Extra Thin DFN package (H

≤ 0.4mm)

• 1.2mm × 1.2mm Thin DFN package

Applications

• Smart phones

• Tablet PCs

• GPS, PMP, PDAs, and handhelds

• Audio codec power

• Portable electronics

• 5V systems

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Typical Application

Camera DSP Power Supply Circuit