Description
The ZL2005 is an innovative mixed-signal power
management and conversion IC that combines a compact, efficient, synchronous DC/DC buck controller,
adaptive drivers and key power and thermal management functions in one IC, providing flexibility and
scalability while decreasing board space requirements
and design complexity. Zilker Labs’ Digital-DC technology enables a unique blend of performance and
features not available in either traditional analog or
newer digital approaches, resolving the issues associated with providing multiple, low-voltage power
domains on a single PCB.
The ZL2005 is designed to be a flexible building block
for DC power and can be easily adapted to designs
ranging from a single-phase power supply operating
from a 3.3 V input to a multi-phase supply operating
from a 12 V input. The ZL2005 eliminates the need
for complicated power supply managers as well as
numerous external discrete components.
All operating features can be configured by simple
pin-strap selection, resistor selection or through the
on-board serial port. The PMBus™-compliant
ZL2005 uses the SMBus™ serial interface for communication with other Digital-DC products or a host
controller.

Features
Power Management
• Digital soft start/stop
• Precision delay and ramp-up
• Power good/enable
• Voltage tracking, sequencing and margining
• Voltage/current/temperature monitoring
• I2
C/SMBus communication
• Output overvoltage and overcurrent protection
• PMBus compliant
Power Conversion
• Efficient synchronous buck controller
• 3 V to 14 V input range
• 0.6 V to 5.5 V output range
• ± 1% output accuracy
• Internal 3 A drivers support >30 A power stage
• Fast load transient response
• Phase interleaving
• RoHS compliant (6 x 6 mm) QFN package

Applications
• Servers/storage equipment
• Telecom/datacom equipment
• Power supplies (memory, DSP, ASIC, FPGA)
• Point of load converters