FAN5066MTCX View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
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FAN5066MTCX Datasheet PDF : 18 Pages
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www.fairchildsemi.com
FAN5066
Ultra Low Voltage Synchronous DC-DC Controller
Features
• Output adjustable from 400mV to 3.5V
• Synchronous Rectification
• Adjustable operation from 80KHz to 1MHz
• Integrated Power Good and Enable functions
• Overvoltage protection
• Overcurrent protection
• Drives N-channel MOSFETs
• 20 pin SOIC or TSSOP package
Applications
• Power supply DDR SDRAM VTT
• Power Supply HSTL
• Power Supply for ASICs
• Adjustable ultra-low voltage step-down power supply
Description
The FAN5066 is a synchronous mode DC-DC controller IC
which provides an adjustable output voltage for ultra-low
voltage applications, down to 400mV. The FAN5066 uses a
high level of integration to deliver load currents in excess of
19A from a 5V source with minimal external circuitry.
Synchronous-mode operation offers optimum efficiency over
the entire output voltage range, and the internal oscillator
can be programmed from 80KHz to 1MHz for additional
flexibility in choosing external components. The FAN5066
also offers integrated functions including a four-bit
DAC-controlled reference, Power Good, Output Enable,
over-voltage protection and current limiting.
Block Diagram
1
OSC
+12V
FAN5066
+5V
5
–
4
+
–
13
+
12
16
CNTRL
DIGITAL
+5V
CONTROL
7
VO
9
VREF 20
4-BIT
DAC
1.24V
REFERENCE
19 18 17 8
VID2 VID4
VID1 VID3
2
ENABLE
POWER
GOOD
3
PWRGD
PRELIMINARY INFORMATION describes products that are not in full production at the time of printing. Specifications are based on design goals
and limited characterization. They may change without notice. Contact Fairchild Semiconductor for current informationR. EV. 2.1.4 11/13/01
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