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PDF MAX1589 Data sheet ( Hoja de datos )

Número de pieza MAX1589
Descripción 500mA LDO Regulator
Fabricantes Maxim Integrated 
Logotipo Maxim Integrated Logotipo



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No Preview Available ! MAX1589 Hoja de datos, Descripción, Manual

19-3048; Rev 2; 10/07
Low-Input-Voltage, 500mA LDO Regulator
with RESET in SOT and TDFN
General Description
The MAX1589 low-dropout linear regulator operates
from a +1.62V to +3.6V supply and delivers a guaran-
teed 500mA continuous load current with a low 175mV
dropout. The high-accuracy (±0.5%) output voltage is
preset to internally trimmed voltages from +0.75V to
+3.0V. An active-low, open-drain reset output remains
asserted for at least 70ms after the output voltage reach-
es regulation. This device is offered in 6-pin thin SOT23
and 6-pin 3mm x 3mm thin DFN packages.
An internal PMOS pass transistor maintains low supply
current, independent of load and dropout voltage, making
the MAX1589 ideal for portable battery-powered equip-
ment such as personal digital assistants (PDAs), digital
still cameras, cell phones, cordless phones, and note-
book computers. Other features include logic-controlled
shutdown, short-circuit protection, and thermal-
overload protection.
Applications
Notebook Computers
Cellular and PCS Telephones
Personal Digital Assistants (PDAs)
Hand-Held Computers
Digital Still Cameras
PCMCIA Cards
CD and MP3 Players
Typical Operating Circuit
INPUT
1.62V TO 3.6V
IN
CIN
1μF
OUT
MAX1589
ON
OFF
SHDN
RESET
GND
OUTPUT
500mA 0.75V TO 3.0V
COUT
4.7μF
LOGIC
SUPPLY
100kΩ
TO μC
Features
Low 1.62V Minimum Input Voltage
Guaranteed 500mA Output Current
±0.5% Initial Accuracy
Low 175mV Dropout at 500mA Load
70ms RESET Output Flag
Supply Current Independent of Load and Dropout
Voltage
Logic-Controlled Shutdown
Thermal-Overload and Short-Circuit Protection
Preset Output Voltages (0.75V, 1.0V, 1.2V, 1.3V,
1.5V, 1.8V, 2.5V, and 3.0V)
Tiny 6-Pin Thin SOT23 Package (<1.1mm High)
Thin 6-Pin TDFN Package (<0.8mm High)
Ordering Information
PART*
TEMP RANGE PIN-PACKAGE
MAX1589EZT_ _ _-T -40°C to +85°C 6 Thin SOT23-6
MAX1589ETT_ _ _
-40°C to +85°C 6 TDFN
*Insert the desired three-digit suffix (see the Selector Guide) into
the blanks to complete the part number. Contact the factory for
other output voltages.
Selector Guide
VOUT
(V)
0.75
1.00
1.20
1.30
1.50
1.80
2.50
3.00
SUFFIX
075
100
120
130
150
180
250
300
TOP MARK
SOT
TDFN
AAAT
AFJ
AAAU
AFK
— ATM
AAAV
AFL
AAAW
AFM
AAAX
AFN
AAAY
AFO
AAAZ
AFP
Pin Configurations
TOP VIEW
IN 1
6 OUT OUT 1
6 IN
GND 2
MAX1589
5 I.C.
I.C. 2
RESET 3
MAX1589
5 SHDN
4 GND
SHDN 3
4 RESET
THIN SOT23
TDFN
3mm x 3mm
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.

1 page




MAX1589 pdf
Low-Input-Voltage, 500mA LDO Regulator
with RESET in SOT and TDFN
Typical Operating Characteristics (continued)
(VIN = (VOUT + 0.5V) or 1.8V, whichever is greater; SHDN = IN, CIN = 1µF, COUT = 4.7µF, TA = +25°C, unless otherwise noted.)
VSHDN
0
SHUTDOWN RESPONSE
MAX1589 toc13
RL = 25Ω
VOUT = 1.5V
1V/div
VOUT
0
100μs/div
500mV/div
VSHDN
0
VOUT
0
VRESET
0
SHUTDOWN/RESET RESPONSE
MAX1589 toc14
RL = 25Ω
VOUT = 1.5V
1V/div
1V/div
1V/div
40ms/div
VIN
0
VOUT
0
VRESET
0
LINE/RESET RESPONSE
MAX1589 toc15
RL = 25Ω
VOUT = 1.5V
2V/div
1V/div
1V/div
200ms/div
_______________________________________________________________________________________ 5

5 Page





MAX1589 arduino
Low-Input-Voltage, 500mA LDO Regulator
with RESET in SOT and TDFN
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
______________________________________________________________________________________ 11

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