1. Overview
1.1.
1.3.
Snapshot鈩?/div>
Parametric Capture Mechanism
RoHS-Compliant (5 x 5mm) 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鈩?Compliant)
Output Voltage and Current Protection
Internal Non-volatile Memory (NVM)
The FD2004 is a digital DC-DC controller designed to
work with the FD1505 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 load range. The
Digital-DC鈩?technology enables a blend of power
conversion performance and power management features.
The FD2004 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 4.5V input to a multi-phase supply operating
from a 12V input. The FD2004 eliminates the need for
complicated power supply managers as well as
numerous external discrete components.
Operating features can be configured by pin-strap /
resistor selection or through the SMBus serial interface.
The SMBus is also used for communication with a host
controller. For inter-device communication with other
Digital-DC devices, the single-wire DDC bus is used.
1.2.
Applications
Servers / Storage Equipment
Telecom / Datacom Equipment
Power Supplies (Memory, DSP, ASIC, FPGA)
IMPORTANT NOTE:
For additional information, please contact
digitalpower@fairchildsemi.com
.
漏 2008 Fairchild Semiconductor Corporation
FD2004 鈥?Rev. 1.3.1
Figure 1. Block Diagram
www.fairchildsemi.com
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