Description
The ZL2005P is an innovative mixed-signal power
conversion and management 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 ZL2005P is designed to be configured either as a
standard ZL2005 or as POLA/DOSA compatible
device.
All operating features can be configured by simple
pin-strap selection, resistor selection or through the
on-board serial port. The PMBus™-compliant
ZL2005P uses the SMBus™ serial interface for communication with other Digital-DC products or a host
controller.

Features Power Conversion
• Efficient synchronous buck controller
• 3 V to 14 V input range
• 0.54 V to 5.5 V output range (with margin)
• Optional output voltage setting with VADJ pin
• ± 1% output accuracy
• Internal 3 A drivers support >40 A power stage
• Fast load transient response
• Phase interleaving
• RoHS compliant (6 x 6 mm) QFN package
Power Management
• Digital soft start/stop
• Precision delay and ramp-up
• Voltage tracking, sequencing and margining
• Voltage/current/temperature monitoring
• I2C/SMBus communication
• Output overvoltage and overcurrent protection
• Internal non-voltatile memory (NVM)
• PMBus compliant

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