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MAX1806 Fiches technique(PDF) 1 Page - Maxim Integrated Products

No de pièce MAX1806
Description  500mA, Low-Voltage Linear Regulator in UMAX
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Fabricant  MAXIM [Maxim Integrated Products]
Site Internet  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1806 Fiches technique(HTML) 1 Page - Maxim Integrated Products

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General Description
The MAX1806 low-dropout linear regulator operates
from a +2.25V to +5.5V supply and delivers a guaran-
teed 500mA load current with low 175mV dropout. The
high-accuracy (±1%) output voltage is preset at an
internally trimmed voltage (see Selector Guide) or can
be adjusted from +0.8V to +4.5V with an external resis-
tive-divider.
An internal PMOS pass transistor allows low 210µA
supply current, making this device ideal for portable
equipment such as personal digital assistants (PDAs),
cellular phones, cordless phones, and other equip-
ment, including base stations and docking stations.
Other features include an active-low, power-OK output
that indicates when the output is out of regulation, a
0.02µA shutdown mode, short-circuit protection, and
thermal shutdown protection. The MAX1806 comes in a
miniature 1.3W, 8-pin power-µMAX package with a
metal pad on the underside of the package.
Applications
Notebook Computers
Cellular and Cordless Telephones
PDAs
Palmtop Computers
Base Stations
USB Hubs
Docking Stations
Features
o Guaranteed 500mA Output Current
o Output Down to 0.8V
o Low 175mV Dropout at 500mA
o ±1% Output Voltage Accuracy
Preset at 0.8V, 1.5V, 1.8V, 2.5V, or 3.3V
Adjustable from 0.8V to 4.5V
o Power-OK Output
o Low 210µA Ground Current
o 0.02µA Shutdown Current
o Thermal Overload Protection
o Output Current Limit
o Tiny 1.3W, 8-Pin Power-µMAX Package
500mA, Low-Voltage Linear Regulator in µMAX
________________________________________________________________ Maxim Integrated Products
1
SET
GND
SHDN
1
2
8
7
OUT
OUT
IN
POK
IN
µMAX
TOP VIEW
3
4
6
5
MAX1806
Pin Configuration
Ordering Information
NC
MAX1806
IN
CIN
1
µF
COUT
10
µF
RPOK
100k
VIN
+2.25V TO +5.5V
ON
OFF
SHDN
OUT
VOUT
0.8V TO 4.5V
POK
GND
SET
TO
µC
Typical Operating Circuit
19-2018; Rev 0; 4/01
PART
TEMP. RANGE
PIN-PACKAGE
MAX1806EUA_ _
-40
°C to +85°C
8 Power-
µMAX
Selector Guide
PART AND SUFFIX
VOUT (V)
TOP MARK
MAX1806EUA33
3.3
AAAG
MAX1806EUA25
2.5
AAAH
MAX1806EUA18
1.8
AAAI
MAX1806EUA15
1.5
AAAJ
MAX1806EUA08
0.8
AAAK
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.


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