MAX5061AUE datasheet(1/31 Pages) MAXIM

Part #	MAX5061AUE

Description	0.6V to 5.5V Output, Parallelable, Average-Current-Mode DC-DC Controllers

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Manufacturer	MAXIM [Maxim Integrated Products]

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General Description

The MAX5060/MAX5061 pulse-width modulation (PWM)

DC-DC controllers provide high-output-current capability

in a compact package with a minimum number of exter-

nal components. These devices utilize an average-cur-

rent-mode control that enables optimal use of low

RDS(ON) MOSFETs, eliminating the need for external

heatsinks even when delivering high output currents.

Differential sensing (MAX5060) enables accurate control

of the output voltage, while adaptive voltage positioning

provides optimum transient response. An internal regula-

tor enables operation with 4.75V to 5.5V or 7V to 28V

input voltage ranges. The high switching frequency, up

to 1.5MHz, allows the use of low-output inductor values

and input capacitor values. This accommodates the use

of PC-board-embedded planar magnetics.

The MAX5060 features a clock output with 180° phase

delay to control a second out-of-phase converter for

lower capacitor ripple currents. The MAX5060 also limits

the reverse current if the bus voltage becomes higher

than the regulated output voltage. The MAX5060 is

specifically designed to limit current sinking when multi-

ple power-supply modules are paralleled. The

MAX5060/MAX5061 offer an adjustable 0.6V to 5.5V out-

put voltage. The MAX5060 offers an overvoltage protec-

tion, power-good signal, and an output enable function.

The MAX5060/MAX5061 operate over the automotive

temperature range (-40°C to +125°C). The MAX5060 is

available in a 28-pin thin QFN package while the

MAX5061 is available in a 16-pin TSSOP package.

Applications

Servers and Workstations

Point-of-Load Telecom DC-DC Regulators

Networking Systems

RAID Systems

High-End Desktop Computers

Features

♦ 4.75V to 5.5V or 7V to 28V Input Voltage Range

♦ Adjustable Output Voltage from 0.6V to 5.5V

♦ Up to 30A Output Current

♦ Can Parallel Outputs For Higher Output Current

♦ Programmable Adaptive Output Voltage

Positioning

♦ True-Differential Remote Output Sensing

(MAX5060)

♦ Average-Current-Mode Control

• Superior Current Sharing Between Paralleled

Modules

• Accurate Current Limit Eliminates MOSFET

and Inductor Derating

♦ Limits Reverse Current Sinking in Paralleled

Modules (MAX5060)

♦ Programmable Switching Frequency from 125kHz

to 1.5MHz

♦ Integrated 4A Gate Drivers

♦ Clock Output for 180° Out-of-Phase Operation

(MAX5060)

♦ Voltage Signal Proportional to Output Current for

Load Monitoring (MAX5060)

♦ Output Overvoltage Crowbar Protection

(MAX5060)

♦ Programmable Hiccup Current-Limit Threshold

and Response Time

♦ Overtemperature Thermal Shutdown

0.6V to 5.5V Output, Parallelable,

Average-Current-Mode DC-DC Controllers

________________________________________________________________ Maxim Integrated Products

1

Ordering Information

Selector Guide

PART

TEMP RANGE

PIN-PACKAGE

PKG

CODE

MAX5060ATI

-40°C to +125°C

28 TQFN-EP*

T2855-3

MAX5060ETI

-40°C to +85°C

28 TQFN-EP*

T2855-3

MAX5061AUE -40°C to +125°C

16 TSSOP-EP*

U16E-3

MAX5061EUE

-40°C to +85°C

16 TSSOP-EP*

U16E-3

PART

OUTPUT

MAX5060

Average-Current-Mode DC-DC Controller

for 5V/12V/24V Input Bus with CLKOUT,

Load Monitoring, Overvoltage, EN Input,

SYNC Input, and PGOOD Output

MAX5061

Average-Current-Mode DC-DC Controller

for 5V/12V/24V Input with SYNC/ENABLE

Input

19-3583; Rev 2; 7/05

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Pin Configurations appear at end of data sheet.

*EP = Exposed pad.

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