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MAX8573EUT+T

Description
High-Efficiency LCD Boost with True Shutdown
CategoryPower/power management    The power supply circuit   
File Size188KB,11 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric View All

MAX8573EUT+T Overview

High-Efficiency LCD Boost with True Shutdown

MAX8573EUT+T Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSOT-23
package instructionROHS COMPLIANT, SOT-23, 6 PIN
Contacts6
Reach Compliance Codecompli
ECCN codeEAR99
Factory Lead Time1 week
Is SamacsysN
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeVOLTAGE-MODE
Maximum input voltage5.5 V
Minimum input voltage2.7 V
Nominal input voltage3.6 V
JESD-30 codeR-PDSO-G6
JESD-609 codee4
length2.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals6
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current0.267 A
Nominal output voltage15 V
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Encapsulate equivalent codeTSOP6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.45 mm
surface mountYES
Switch configurationBOOST
Maximum switching frequency800 kHz
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceNickel/Palladium/Gold (Ni/Pd/Au)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width1.625 mm
Base Number Matches1
19-3329; Rev 3; 3/10
KIT
ATION
EVALU
BLE
AVAILA
High-Efficiency LCD Boost
with True Shutdown
General Description
Features
15V or Adjustable Output Voltage Up to 28V
Safety Features Protect Against Output Faults
20mA at 20V from a Single Li+ Battery
True Shutdown
87% Efficiency
Up to 800kHz Switching Frequency
Small, 6-Pin SOT23 and
µDFN
(MAX8570 Only)
Packages
MAX8570–MAX8575
The MAX8570 family of LCD step-up converters uses
an internal n-channel switch and an internal p-channel
output isolation switch. These converters operate from
a 2.7V to 5.5V supply voltage and deliver up to 28V at
the output.
A unique control scheme provides the highest efficien-
cy over a wide range of load conditions. The internal
MOSFET switch reduces external component count and
a high switching frequency (up to 800kHz) allows for
tiny surface-mount components. Three current-limit
options are available. The MAX8570 and MAX8572 use
a 110mA current limit to reduce ripple and component
size in low-current applications. For high-power require-
ments, the MAX8574 and MAX8575 use a 500mA cur-
rent limit and supply up to 20mA at 20V. The MAX8571
and MAX8573 use a 250mA current limit for a compro-
mise between ripple and power. Built-in safety features
protect the internal switch and down-stream compo-
nents from fault conditions.
Additional features include a low quiescent current and
a True Shutdown™ mode to save power. The MAX8570/
MAX8571/MAX8574 allow the user to set the output
voltage between 3V and 28V, and the MAX8572/
MAX8573/MAX8575 have a preset 15V output. These
step-up converters are ideal for small LCD panels with
low current requirements, but can also be used in other
applications. The MAX8571 evaluation kit is available to
help reduce design time.
Ordering Information
PART
MAX8570ELT+T
MAX8570EUT+T
MAX8571EUT+T
MAX8572EUT+T
MAX8573EUT+T
MAX8574EUT+T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
6L μDFN
6 SOT23
6 SOT23
6 SOT23
6 SOT23
6 SOT23
TOP
MARK
ACW
ABTJ
ABTK
ABTL
ABTM
ABTN
ABTO
MAX8575EUT+T
-40°C to +85°C
6 SOT23
+Denotes
a lead(Pb)-free RoHS-compliant package.
T = Tape and reel.
Applications
LCD Bias Generators
Polymer LEDs (OLED)
Cellular or Cordless Phones
Palmtop Computers
Personal Digital Assistants (PDAs)
Organizers
Handy Terminals
PART
MAX8570
MAX8571
MAX8572
MAX8573
MAX8574
MAX8575
110mA
250mA
110mA
250mA
500mA
500mA
Selector Guide
CURRENT LIMIT
OUTPUT VOLTAGE
Adjustable
Adjustable
15V
15V
Adjustable
15V
Pin Configurations
TOP VIEW
+
FB 1
GND 2
SHDN 3
6
V
CC
SW
LX
Typical Operating Circuit
V
OUT
= V
CC
TO 28V
SW
LX
MAX8570
MAX8571
MAX8574
5
4
V
CC
= 2.7V TO 5.5V
V
CC
MAX8572
MAX8573
MAX8575
OUT
SOT23
Pin Configurations continued at end of data sheet.
True Shutdown is a trademark of Maxim Integrated Products, Inc.
ON
OFF
SHDN
GND
________________________________________________________________
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
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