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ZL2004 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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ZL2004 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 42 page  ZL2004 Adaptive Digital DC-DC Controller with Current Sharing FN6846 Rev. 3.00 Page 1 of 42 February 15, 2011 FN6846 Rev. 3.00 February 15, 2011 DATASHEET Description The ZL2004 is a digital DC-DC controller designed to work with the ZL1505 MOSFET driver IC. 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 across the entire load range. Zilker Labs Digital-DC™ technology enables a blend of power conversion performance and power management features. The ZL2004 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 4.5 V input to a multi-phase supply operating from a 12V input. The ZL2004 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/resistor selection or through the SMBus™ serial interface. The ZL2004 uses the PMBus™ protocol for communication with a host controller and the Digital- DC bus for communication between other Zilker Labs devices. Features Power Conversion Efficient synchronous buck controller Adaptive performance optimization algorithms 4.5 V to 14 V input range 0.54 V to 4 V output range (with margin) ± 1% V OUT set-point accuracy Fast load transient response Current sharing and phase interleaving Digitally adjustable current sense range Snapshot™ parameter capture RoHS compliant (5 x 5 mm) QFN package Power Management Digital soft start/stop Precision delay and ramp-up Power good/enable Voltage tracking, sequencing and margining Voltage/current/temperature monitoring SMBus communication (PMBus compliant) Output voltage and current protection Internal non-volatile memory (NVM) Applications Servers / storage equipment Telecom / datacom equipment Power supplies (memory, DSP, ASIC, FPGA) Figure 1. Block Diagram CURRENT SENSE LDO TEMP SENSOR V (0,1) VMON MGN VR VDD PWML ISENA ISENB POWER LEVEL SHIFTER XTEMP PWM I2C SCL SDA SALRT SA (0,1) MANAGEMENT EN PG CFG SS ILIM FC MONITOR CONTROLLER V25 SYNC SGND DGND ADC NON- VOLATILE MEMORY VTRK VSEN+/- DDC PWMH NOT RECOMMENDED FOR NEW DESIGNS RECOMMENDED REPLACEMENT PART ZL8101 |
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