MAX1589 Maxim, MAX1589 Datasheet
MAX1589
Manufacturer Part Number
MAX1589
Description
Low-Input-Voltage / 500mA LDO Regulator with RESETin SOT and TDFN
Manufacturer
Maxim
Datasheet
1.MAX1589.pdf
(12 pages)
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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.
19-3048; Rev 0; 10/03
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.
1.62V TO 3.6V
INPUT
Notebook Computers
Cellular and PCS Telephones
Personal Digital Assistants (PDAs)
Hand-Held Computers
Digital Still Cameras
PCMCIA Cards
CD and MP3 Players
ON
OFF
C
1µF
IN
Low-Input-Voltage, 500mA LDO Regulator
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
IN
SHDN
MAX1589
General Description
GND
RESET
OUT
Applications
500mA
C
4.7µF
OUT
0.75V TO 3.0V
100kΩ
OUTPUT
LOGIC
SUPPLY
with R R E E S S E E T T in SOT and TDFN
TO µC
o Low 1.62V Minimum Input Voltage
o Guaranteed 500mA Output Current
o ±0.5% Initial Accuracy
o Low 175mV Dropout at 500mA Load
o 70ms RESET Output Flag
o Supply Current Independent of Load and Dropout
o Logic-Controlled Shutdown
o Thermal-Overload and Short-Circuit Protection
o Preset Output Voltages (0.75V, 1.0V, 1.3V, 1.5V,
o Tiny 6-Pin Thin SOT23 Package (<1.1mm High)
o Thin 6-Pin TDFN Package (<0.8mm High)
*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.
SHDN
MAX1589EZT_ _ _-T
MAX1589ETA_ _ _
TOP VIEW
GND
Voltage
1.8V, 2.5V, and 3.0V)
IN
V
0.75
1.00
1.30
1.50
1.80
2.50
3.00
OUT
(V)
1
2
3
PART*
THIN SOT23
MAX1589
SUFFIX
075
100
130
150
180
250
300
6
5
4
Ordering Information
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
OUT
I.C.
RESET
Pin Configurations
RESET
OUT
I.C.
Selector Guide
AAAW
AAAU
AAAV
AAAX
AAAY
AAAZ
AAAT
SOT
1
2
3
3mm x 3mm
TOP MARK
MAX1589
MAX1589
TDFN
PIN-PACKAGE
6 Thin SOT23-6
6 TDFN
Features
TDFN
AFM
AFO
AFK
AFN
AFP
AFJ
AFL
6
5
4
IN
SHDN
GND
1
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