MAX1810ESA Maxim Integrated Products, MAX1810ESA Datasheet

IC REG SMART CARD NETWORK 8-SOIC

MAX1810ESA

Manufacturer Part Number
MAX1810ESA
Description
IC REG SMART CARD NETWORK 8-SOIC
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1810ESA

Applications
Network, Telecom
Voltage - Input
4.5 ~ 5.5 V
Number Of Outputs
1
Voltage - Output
3.3V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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Part Number:
MAX1810ESA+
Manufacturer:
Maxim Integrated Products
Quantity:
135
The MAX1810 powers peripheral component intercon-
nect (PCI) Ethernet network interface cards (NICs),
modem cards, and other devices that utilize both the
main and auxiliary (standby) voltages supplied by PCI-
compliant systems. The device generates an uninter-
rupted +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 addi-
tion, 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 high-
power (0.9W) SO package.
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.
19-1678; Rev 0; 4/00
________________________Applications
+3.3V AUX
+5V MAIN
+5V STBY
PCI Adapter Cards
Network Interface Cards
Modem Cards
INPUT
INPUT
INPUT
Typical Operating Circuit
MAIN
STBY
AUX
Network Interface Card Smart Regulator
________________________________________________________________ Maxim Integrated Products
MAX1810
General Description
GND
OUT
C
1.0µF
OUT
OUT
+3.3V, 500mA
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
MAX1810ESA
TOP VIEW
PART
MAIN
STBY
OUT
AUX
1
2
4
3
TEMP. RANGE
-40
Ordering Information
MAX1810
o
C to +85
SO
Pin Configuration
o
C
6
8
7
5
GND
GND
GND
GND
PIN-PACKAGE
8 SO
Features
1

Related parts for MAX1810ESA

MAX1810ESA Summary of contents

Page 1

... Uninterrupted +3.3V Output 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 PART MAX1810ESA TOP VIEW OUT +3.3V, 500mA STBY C OUT 1.0µF MAIN ...

Page 2

Network Interface Card Smart Regulator ABSOLUTE MAXIMUM RATINGS MAIN, STBY, AUX, OUT to GND ...........................-0.3V to +6.0V OUT to AUX ...........................................................-0.3V to +6.0V OUT Maximum Output Current .......................................1750mA Continuous Power Dissipation (T = +70°C) A 8-Pin SO (derate 11.75mW/°C above ...

Page 3

Network Interface Card Smart Regulator ELECTRICAL CHARACTERISTICS ( +5.0V +3.3V, T MAIN STBY AUX PARAMETER MAIN or STBY Input Range AUX Input Range Maximum Load Current MAIN or STBY Quiescent Current I OUT AUX Quiescent ...

Page 4

Network Interface Card Smart Regulator ( +5V +3.3V, C MAIN STBY AUX OUT OUTPUT VOLTAGE vs. OUTPUT CURRENT (AUX) 3.9 3.7 3.5 3.3 3.1 2.9 2.7 2.5 0 100 200 300 400 500 600 OUTPUT ...

Page 5

Network Interface Card Smart Regulator ( +5V +3.3V, C MAIN STBY AUX MAIN OR STANDBY LINE-TRANSIENT RESPONSE OUT I = 50mA OUT 200µs/div MAIN-T0-STANDBY TRANSITION WAVEFORM V MAIN V OUT I = ...

Page 6

Network Interface Card Smart Regulator MAIN 5V MAIN DET REG STBY 5V DET STBY REG AUX 3.3V DET CONTROL LOGIC GND Figure 1. Functional Diagram MAIN OR STBY INPUT VOLTAGE 5.5V MAIN OR STBY LDO GUARANTEED ON 4.475V DETECTION 4.1V(TYP) ...

Page 7

Network Interface Card Smart Regulator 1.6 MAXIMUM CONTINUOUS CURRENT LIMIT 1.4 1 +70°C A 1.0 T 0.8 0.6 0 +80° +150°C J(MAX) 0 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) Figure 3. ...

Page 8

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

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