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MAX1810

Maxim
Part Number MAX1810
Manufacturer Maxim
Description Network Interface Card Smart Regulator
Published May 6, 2005
Detailed Description 19-1678; Rev 0; 4/00 Network Interface Card Smart Regulator General Description The MAX1810 powers peripheral component...
Datasheet PDF File MAX1810 PDF File

MAX1810
MAX1810

Overview
19-1678; Rev 0; 4/00 Network Interface Card Smart Regulator General Description The MAX1810 powers peripheral component interconnect (PCI) Ethernet network interface cards (NICs), modem cards, and other devices that utilize both the main and auxiliary (standby) voltages supplied by PCIcompliant systems.
The device generates an uninterrupted +3.
3V at up to 500mA from either a +5V main or a +5V standby supply.
When both +5V inputs fall below +4.
1V, an internal switch connects the +3.
3V auxiliary input to the output.
An auxiliary switch resistance of only 0.
18Ω minimizes output droop from the +3.
3V auxiliary supply.
In addition, the MAX1810 guarantees that no reverse current flows from the output to any unbiased or inactive input, and remains stable with as little as 1µF of output bypass capacitance at its output.
The MAX1810 is available in a compact 8-pin highpower (0.
9W) SO package.
o Uninterrupted +3.
3V Output o Up to 500mA Output Current o High-Power 0.
9W SO-8 Package o Thermal and Overcurrent Protection o Only 1µF Output Capacitor o Internal 0.
18Ω +3.
3V Auxiliary Switch o No Reverse Current to Inactive Inputs Features MAX1810 ________________________Applications PCI Adapter Cards Network Interface Cards Modem Cards PART MAX1810ESA Ordering Information TEMP.
RANGE -40oC to +85oC PIN-PACKAGE 8 SO Typical Operating Circuit TOP VIEW +5V MAIN INPUT MAIN OUT OUT +3.
3V, 500mA COUT 1.
0µF +5V STBY INPUT STBY STBY 1 Pin Configuration 8 7 GND GND GND GND MAX1810 MAIN 2 MAX1810 OUT 3 6 5 AUX 4 +3.
3V AUX INPUT AUX GND SO ________________________________________________________________ Maxim Integrated Products 1 For free samples and the latest literature, visit www.
maxim-ic.
com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Network Interface Card Smart Regulator MAX1810 ABSOLUTE MAXIMUM RATINGS MAIN, STBY, AUX, OUT to GND .
.
-0.
3V to +6.
0V OUT to AUX .
.
.
.
-0.
3V ...


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