Datasheet

MAX5946

large capacitive loads due to their adjustable startup

times and adjustable current-limit thresholds. Calculate

the maximum load capacitance as follows:

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 4µs typical.

Chip Information

TRANSISTOR COUNT: 10,487

PROCESS: BiCMOS

LOAD

SU LIM

OUT

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