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MAX1963AETA+T

Description
Low-Input-Voltage, 300mA LDO Regulators with RESET in SOT and TDFN
File Size216KB,10 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX1963AETA+T Overview

Low-Input-Voltage, 300mA LDO Regulators with RESET in SOT and TDFN

19-3684; Rev 1; 5/12
Low-Input-Voltage, 300mA LDO Regulators
with
RESET
in SOT and TDFN
General Description
The MAX1963A/MAX1976A low-dropout linear regula-
tors operate from a +1.62V to +3.6V supply and deliver
a guaranteed 300mA continuous load current with a low
100mV dropout. The high-accuracy (±0.5%) output
voltage is preset to an internally trimmed voltage in the
+0.75V to +3.0V range. An active-low, open-drain reset
output remains asserted for at least 2.2ms (MAX1963A)
or 70ms (MAX1976A) after the output voltage reaches
regulation. These devices are offered in thin SOT23 and
thin DFN packages. An internal pMOS pass transistor
allows the low supply current to remain independent of
load and dropout voltage, making these devices ideal for
portable battery-powered equipment.
o
Low 1.62V Minimum Input Voltage
o
Guaranteed 300mA Output Current
o
±2.5% Accuracy Over Load/Line/Temp
o
Low 100mV Dropout at 300mA Load
o
2.2ms (MAX1963A) or 70ms (MAX1976A)
RESET
Output Flag
o
Supply Current Independent of Load and
Dropout Voltage
o
Logic-Controlled Shutdown
o
Thermal-Overload and Short-Circuit Protection
o
Preset Output Voltages (0.75V to 3.0V)
o
Tiny 6-Pin Thin SOT23 Package (<1.1mm High)
o
TDFN Package (<0.8mm High)
Features
MAX1963A/MAX1976A
Applications
Notebook/Handheld Computers
Cellular/Smart/PDA Phones
DSC, CD/MP3 Players
PCMCIA Cards
Ordering Information
PART*
MAX1963A
EZT_ _ _+T
MAX1963AETT_ _ _+T
MAX1963AETA_ _ _+T
SHDN
GND
N.C.
TEMP RANGE PIN-PACKAGE
-40°C to +85°C 6 Thin SOT23-6
-40°C to +85°C 6 TDFN-6 3mm x 3mm
-40°C to +85°C 8 TDFN-8 2mm x 2mm
-40°C to +85°C 6 Thin SOT23-6
-40°C to +85°C 6 TDFN-6 3mm x 3mm
-40°C to +85°C 8 TDFN-8 2mm x 2mm
-40°C to +85°C 6 TDFN-6 3mm x 3mm
Pin Configurations
TOP VIEW
+
IN 1
6 OUT
IN
8
MAX1976A
EZT_ _ _+T
MAX1976AETT_ _ _+T
MAX1976AETA_ _ _+T
MAX1976AETT_ _ _/V+T
5
7
6
GND 2
MAX1963A
MAX1976A
5 I.C.
MAX1963A
MAX1976A
+
1
OUT
2
N.C.
3
I.C.
4
RESET
SHDN 3
4 RESET
*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.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive-qualified part.
THIN SOT23
SHDN
GND
IN
TDFN
2mm x 2mm
4
Typical Operating Circuit
INPUT
1.62V TO 3.6V
C
IN
1µF
IN
OUT
UP TO
300mA
OUTPUT
0.75V TO 3.0V
C
OUT
LOGIC
4.7µF SUPPLY
100kΩ
ON
6
5
MAX1963A
MAX1976A
+
1
OUT
2
I.C.
3
RESET
OFF
MAX1963A
MAX1976A
SHDN
GND
RESET
TO
µC
TDFN
3mm x 3mm
Selector Guide appears at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
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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