General Description

The MAX8526/MAX8527/MAX8528 low-dropout linear

regulators operate from input voltages as low as 1.425V

and are able to deliver up to 2A of continuous output

current with a maximum dropout voltage of only 200mV.

and is 1.4% accurate over load and line variations, from

0°C to +85°C.

These regulators use small, 2.2µF ceramic input capaci-

tors and 10µF ceramic output capacitors to deliver 2A

output current. High bandwidth provides excellent tran-

sient response and limits the output voltage deviation to

45mV for a 20mA to 2A load step, with only a 10µF

ceramic output capacitor, and the voltage deviations can

be reduced further by increasing the output capacitor.

Designed with an internal p-channel MOSFET pass

transistor, the MAX8526/MAX8527/MAX8528 feature

low 500µA typical supply current during dropout condi-

tions. Soft-start reduces inrush current. Other features

include a logic-controlled shutdown mode, short-circuit

protection, and thermal-overload protection.

The MAX8527 features a power-OK (POK) output that

transitions high when the regulator output is within

±10% of its nominal output voltage. The MAX8528 fea-

tures a 150ms power-on reset (POR) output.

The parts are packaged in a 14-pin TSSOP package,

which includes an exposed pad for optimal power

dissipation.

Applications

Servers

Networking

Storage

Base Stations

Optical Modules

Post Regulators

Notebooks

PDAs

ATE

Features

o 1.425V to 3.6V Input Voltage Range

o Guaranteed 200mV Dropout at 2A Output Current

o ±0.6% Initial Accuracy

o ±1.4% Output Accuracy over

Load/Line/Temperature (0°C to +85°C)

o Compatible with Ceramic Capacitors

o Fast Transient Response

o 440µA Operating Supply Current

o <50µA Shutdown Supply Current

o Short-Circuit Protection

o Thermal-Overload Protection

o Soft-Start Limits Inrush Current

o 5mm x 6.4mm Footprint, 1.1mm Profile

1.425V to 3.6V Input, 2A,

0.2V Dropout LDO Regulators

________________________________________________________________

Maxim Integrated Products

1

MAX8526

MAX8527

MAX8528

2.2

µF

10

µF

INPUT

1.425V TO 3.6V

OUTPUT

POWER-ON RESET

POWER-OK

ON

OFF

IN_

POR (MAX8528)

POK (MAX8527)

EN

GND

FB

OUT_

Typical Operating Circuit

Ordering Information

19-3190; Rev 2; 8/09

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Pin Configurations appear at end of data sheet.

+

Denotes a lead(Pb)-free RoHS-compliant package.

/V Denotes an automotive qualified part.

PART

TEMP RANGE

PIN-PACKAGE

MAX8526EUD

-40°C to +85°C

14 TSSOP

MAX8526EUD+

-40°C to +85°C

14 TSSOP

MAX8527EUD

-40°C to +85°C

14 TSSOP

MAX8527EUD+

-40°C to +85°C

14 TSSOP

MAX8527EUD/V+

-40°C to +85°C

14 TSSOP

MAX8528EUD

-40°C to +85°C

14 TSSOP

MAX8528EUD+

-40°C to +85°C

14 TSSOP

EVALUATION

KIT

AVAILABLE