ZY8140 40A DC-DC Intelligent POL
8V to 14V Input ? 0.5V to 3.65V Output
Data Sheet
Member of the
Features
Family
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RoHS lead free and lead-solder-exempt products are
available
Wide input voltage range: 8V–14V
High continuous output current: 40A
Programmable output voltage range: 0.5V–3.65V
Efficiency up to 94%
Active digital current share
Single-wire serial communication bus for frequency
synchronization, programming, and monitoring
Real time voltage, current, and temperature
measurements, monitoring, and reporting
Optimal voltage positioning with programmable slope
Applications
? Low voltage, high density systems with
Intermediate Bus Architectures (IBA)
? Point-of-load regulators for high performance
DSP, FPGA, ASIC, and microprocessors
? Desktops, servers, and portable computing
? Broadband, networking, optical, and
communications systems
Benefits
? Integrates digital power conversion with
intelligent power management
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of the VI line
Overcurrent, overvoltage, undervoltage, and
overtemperature protections with programmable
thresholds and types
Programmable fixed switching frequency 0.5-1.0MHz
Programmable turn-on and turn-off delays
Programmable turn-on and turn-off voltage slew rates
with tracking protection
Programmable feedback loop compensation
Power Good signal with programmable limits
Programmable fault management
Start up into the load pre-biased up to 100%
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Eliminates the need for external power
management components
Completely programmable via industry-standard
I 2 C communication bus
One part that covers all applications
Reduces board space, system cost and
complexity, and time to market
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Current sink capability
Industry standard size through-hole single-in-line
package: 1.8”x0.55”
Low height of 1.1”
Wide operating temperature range: 0 to 70oC
UL60950, CSA C22.2 No. 60950-00, and TUV
EN60950-1:2001
Description
Power-One’s point-of-load converters are recommended for use with regulated bus converters in an Intermediate
Bus Architecture (IBA). The ZY8140 is an intelligent, fully programmable multiphase step-down point-of-load DC-
DC module integrating digital power conversion and intelligent power management. When used with ZM7000
Series Digital Power Managers, the ZY8140 completely eliminates the need for external components for
sequencing, tracking, protection, monitoring, and reporting. All parameters of the ZY8140 are programmable via
the industry-standard I 2 C communication bus and can be changed by a user at any time during product
development and service.
Reference Documents:
? ZM7300 Digital Power Manager. Data Sheet
? ZM7300 Digital Power Manager. Programming Manual
? Z-One ? Graphical User Interface
? ZM00056-KIT USB to I 2 C Adapter Kit. User Manual
ZD-01977 Rev. 1.1, 01-Jul-10
www.power-one.com
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