MAX5060 Datasheet, PDF (1/31 Pages) Maxim Integrated Products – 0.6V to 5.5V Output, Parallelable, Average-Current-Mode DC-DC Controllers

19-3583; Rev 2; 7/05
0.6V to 5.5V Output, Parallelable,
Average-Current-Mode DC-DC Controllers
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
R_DS(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
Ordering Information
PART
MAX5060
MAX5061
Selector Guide
OUTPUT
Average-Current-Mode DC-DC Controller
for 5V/12V/24V Input Bus with CLKOUT,
Load Monitoring, Overvoltage, EN Input,
SYNC Input, and PGOOD Output
Average-Current-Mode DC-DC Controller
for 5V/12V/24V Input with SYNC/ENABLE
Input
PART
TEMP RANGE
PIN-PACKAGE
PKG
CODE
MAX5060ATI -40°C to +125°C 28 TQFN-EP*
MAX5060ETI -40°C to +85°C 28 TQFN-EP*
T2855-3
T2855-3
MAX5061AUE -40°C to +125°C
MAX5061EUE -40°C to +85°C
*EP = Exposed pad.
16 TSSOP-EP*
16 TSSOP-EP*
U16E-3
U16E-3
Pin Configurations appear at end of data sheet.
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