MIC2810

Digital Power Management IC

2MHz, 600mA DC/DC w/Dual

LOWQ

is a registered trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

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

April 2007

1

M9999-041107-B

General Description

The MIC2810 is a high performance power management

IC, integrating a 2MHz DC/DC switcher with two 300mA

LDOs. The MIC2810 features a LOWQ

the total current draw while in this mode to less than 30µA.

In LOWQ

use a PFM light load mode that can interfere with sensitive

RF circuitry.

The MIC2810 is a µCap design, operating with very small

ceramic output capacitors and inductors for stability,

therefore, reducing required board space and component

cost. It is available with fixed output voltages in a 16-pin

3mm x 3mm MLF

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Features

• 2MHz DC/DC converter and two LDOs

• Integrated power-on reset (OR function for all outputs)

– Adjustable delay time

• Thermal shutdown protection

• Current limit protection

DC/DC Converter

• 2.7V to 5.5V input voltage range

• Output current to 600mA in PWM mode

• 2MHz PWM operation in normal mode

LDOs

• LDO1

– 1.65V to 5.5V input voltage range

– 300mA Output current

– Output voltage down to 0.8V

• LDO2

– 2.7V to 5.5V input voltage range

– 300mA Output current

– Output voltage down to 0.8V

Applications

• Mobile phones

• PDAs

• GPS receivers

• Digital still cameras

• Portable media players

Typical Application

LDO

VIN

VIN1

SW

LDO1

LDO2

POR

CSET

LOWQ

EN2

BIAS

EN1

MIC2810-xxxYML

Baseband

Memory/DSP

PGND

SGND

2.7V to 5.5V

4.7µF

2.2µF

ceramic

2.2µF

ceramic

0.01µF

0.1µF

2.2µF

2.2µH

GND

GND

EN

VIN2

10

20

30

40

50

60

70

80

90

0

100 200 300 400 500 600

OUTPUT CURRENT (mA)