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XRP7725 Datasheet Preview

XRP7725 Datasheet

Intel Node Manager Compatible Programmable Power Management System

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XRP7725
Intel Node Manager Compatible Programmable
Power Management System
June 2018
GENERAL DESCRIPTION
The XRP7725 is a quad channel Digital Pulse
Width Modulated (DPWM) Step down (buck)
controller. A wide 4.75V to 5.5V and 5.5V to
25V input voltage dual range allows for single
supply operation from standard power rails.
With integrated FET gate drivers, two LDOs for
standby power and a 105kHz to 1.23MHz
independent channel to channel programmable
constant operating frequency, the XRP7725
reduces overall component count and solution
footprint and optimizes conversion efficiencies.
A selectable digital Pulse Frequency Mode
(DPFM) and low operating current result in
better than 80% efficiency down to 10mA load
provides support for portable and Energy Star
compliant applications. Each XRP7725 output
channel is individually programmable down to
a minimum 0.6V with a resolution of 2.5mV,
and configurable for precise soft start and soft
stop sequencing, including delay and ramp
control.
The XRP7725 operation is fully controlled via
an SMBus-compliant I2C interface allowing for
advanced local and/or remote reconfiguration,
full performance monitoring and reporting as
well as fault handling.
Built-in independent output over voltage, over
temperature, over-current and under voltage
lockout protections insure safe operation
under abnormal operating conditions.
The XRP7725 is offered in a RoHS compliant,
“green”/halogen free 44-pin TQFN package.
TYPICAL APPLICATION DIAGRAM
Rev. 1.0.1
FEATURES
Quad Channel Step-down Controller
Digital PWM 105kHz-1.23MHz Operation
Individual Channel Frequency Selection
Patented digital PFM with Ultrasonic mode
Patented Over Sampling Feedback
Instantaneous current monitoring –
Intel® Node Manager Compatible
4.75V to 25V Input Voltage
4.75V to 5.5V and 5.5V to 25V Input
Ranges
0.6V to 5.5V Output Voltage
SMBus Compliant - I2C Interface
Full Power Monitoring and Reporting
3 x 15V Capable PSIO + 2 x GPIOs
Full Start/Stop Sequencing Support
Built-in Thermal, Over-Current, UVLO
and Output Over-Voltage Protections
On Board 5V and 3.3V Standby LDOs
On Board Non-volatile Memory
Supported by PowerArchitect™ 5
APPLICATIONS
Blade Servers
Micro Servers
Network Adapter Cards
Base Stations
Switches/Routers
Broadcast Equipment
Industrial Control Systems
Automatic Test Equipment
XRP7725
Figure 1: XRP7725 Application Diagram
1/35
Rev. 1.0.1




MaxLinear

XRP7725 Datasheet Preview

XRP7725 Datasheet

Intel Node Manager Compatible Programmable Power Management System

No Preview Available !

XRP7725
Intel Node Manager Compatible Programmable Power
Management System
FEATURES AND BENEFITS
Programmable Power Benefits
Fully Configurable
Output set point
Feedback compensation
Frequency set point
Under voltage lock out
Input voltage measurement
Gate drive dead time
Reduced Development Time
Configurable and re-configurable for
different Vout, Iout, Cout, and Inductor
values
No need to change external passives for a
new output specification.
Higher integration and Reliability
Many external components used in the
past can be eliminated thereby
significantly improving reliability.
PowerArchitect™ 5.1 Design and
Configuration Software
Wizard quickly generates a base design
Calculates all configuration registers
Projects can be saved and/or recalled
GPIOs can be configured easily and
intuitively
Dashboard interface can be used for real-
time monitoring and debug
System Benefits
Intel Node Manager Compatible current
monitoring.
Ability to perform remote configuration
updates.
Ability to analyze operating history, perform
diagnostics and if required, take the supply
off-line after making other system
adjustments.
System Integration Capabilities
Single supply operation
I2C interface allows:
Intel Node Manager Compatible as well as
other Power Management systems
Modification or reading of internal
registers that control or monitor:
Output Current
Input and Output Voltage
Soft-Start/Soft-Stop Time
Power Good
Part Temperature
Enable/Disable Outputs
Over Current
Over Voltage
Temperature Faults
Adjusting fault limits and
disabling/enabling faults
Packet Error Checking (PEC) on I2C
communication
5 GPIO pins with a wide range of
configurability
Fault reporting (including UVLO
Warn/Fault, OCP Warn/Fault, OVP,
Temperature, Soft-Start in progress,
Power Good, System Reset)
Allows a Logic Level interface with other
non-digital IC’s or as logic inputs to other
devices
Frequency and Synchronization
Capability
Selectable switching frequency between
105kHz and 1.2MHz
Main oscillator clock and DPWM clock can
be synchronized to external sources
‘Master’, ‘Slave’ and ‘Stand-alone’
configurations are possible
Internal MOSFET Drivers
Internal FET drivers (4Ω/2Ω) per channel
Built-In Automatic Dead-time adjustment
30ns Rise and Fall times
4 Independent SMPS channels and 2
LDOs in a 7x7mm TQFN
2/35
Rev. 1.0.1


Part Number XRP7725
Description Intel Node Manager Compatible Programmable Power Management System
Maker MaxLinear
Total Page 30 Pages
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