large capacitive loads due to their adjustable startup
times and adjustable current-limit thresholds. Calculate
the maximum load capacitance as follows:
V
OUT
is either the 3.3V output, the 12V output, or the
3.3V auxiliary output for slot A or slot B.
Input Transients
The 12V input (12VIN), the 3.3V input (3.3SA+), and the
3.3V auxiliary (3.3VAUXIN) must be above their UVLO
thresholds before startup can occur. Input transients
can cause the input voltage to sag below the UVLO
threshold. The MAX5496 rejects transients on the input
supplies that are shorter than 4祍 typical.
Chip Information
TRANSISTOR COUNT: 10,487
PROCESS: BiCMOS
C
t
I
V
LOAD
SU    LIM
<
?/DIV>
Dual PCI Express, Hot-Plug
Controller
20   ______________________________________________________________________________________
Table 3. Component Manufacturers
COMPONENT
MANUFACTURER
PHONE
WEBSITE
Vishay-Dale
402-564-3131
www.vishay.com
Sense Resistor
IRC
704-264-8861
www.irctt.com
Fairchild
888-522-5372
www.fairchildsemi.com
International Rectifier
310-322-3331
www.irf.com
Motorola
602-244-3576
www.mot-sps.com/ppd/
MOSFETs
Vishay-Siliconix

www.vishay.com
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