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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.

Key Features

• Power Management
• Digital soft start/stop
• Precision delay and ramp-up
• Power good/enable
• Voltage tracking, sequencing and margining
• Voltage/current/temperature monitoring
• I2C/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