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