DATASHEET NOT RECOMMENDED FOR NEW DESIGNS
RECOMMENDED REPLACEMENT PART
ZL6105 ZL2008 FN6859
Rev 4.00
April 29, 2011 Digital DC/DC Controller with Drivers and Pin-Strap Current Sharing
The ZL2008 is a digital power controller with integrated
MOSFET drivers. Current sharing allows multiple devices to be
connected in parallel to source loads with very high current
demands. Adaptive performance optimization algorithms
improve power conversion efficiency. Zilker Labs Digital-DCв„ў
technology enables a blend of power conversion performance
and power management features. Features The ZL2008 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 3.3V input to a
multi-phase supply operating from a 12V input. The ZL2008
eliminates the need for complicated power supply managers
as well as numerous external discrete components. 0.54V to 5.5V output range (with margin) Key operating features can be configured by pin-straps,
including compensation, current sharing and output voltage.
The ZL2008 uses the I2C/SMBusв„ў with PMBusв„ў protocol for
communication with a host controller and the Digital-DC bus
for communication between Zilker Labs devices. Current sharing and phase interleaving Applications Power Conversion Efficient synchronous buck controller Adaptive light load efficiency optimization 3V to 14V input range POLA and DOSA voltage trim modes В±1% output voltage accuracy Internal 3A MOSFET drivers Fast load transient response Snapshotв„ў parameter capture RoHS compliant (6mmx6mm) QFN package Power Management Digital soft-start/stop Servers/storage equipment Precision delay and ramp-up Telecom/datacom equipment Power good/enable Power supply modules Voltage tracking, sequencing and margining Voltage, current and temperature monitoring I2C/SMBus interface, PMBus compatible Output voltage and current protection Internal non-volatile memory (NVM) Block Diagram
EN PG DLY FC Efficiency vs Load Current
100 ILIM CFG UVLO V25 VR VDD V OUT = 3.3V …
