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MAX8559EBA22+

Description
Fixed Positive LDO Regulator
CategoryPower/power management    The power supply circuit   
File Size240KB,12 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric View All

MAX8559EBA22+ Overview

Fixed Positive LDO Regulator

MAX8559EBA22+ Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerMaxim
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time1 week
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Regulator typeFIXED POSITIVE MULTIPLE OUTPUT LDO REGULATOR
Maximum time at peak reflow temperatureNOT SPECIFIED
19-3121; Rev 2; 8/05
KIT
ATION
EVALU
BLE
AVAILA
Dual, 300mA, Low-Noise Linear Regulator
with Independent Shutdown in UCSP or TDFN
General Description
The MAX8559 dual, low-noise, low-dropout (LDO) linear
regulator operates from a 2.5V to 6.5V input voltage
and delivers at least 300mA of continuous output cur-
rent. It offers low output noise and low dropout of only
60mV at 100mA. Typical output noise for this device is
32µV
RMS
, and PSRR is 70dB at 10kHz. Designed with
an internal P-channel MOSFET pass transistor, the
MAX8559 maintains a low 115µA supply current per
LDO, independent of the load current and dropout volt-
age. Other features include short-circuit protection and
thermal-shutdown protection. The MAX8559 includes
two independent logic-controlled shutdown inputs and
is capable of operating without a bypass capacitor to
further reduce total solution size. The MAX8559 is avail-
able in a miniature 8-bump UCSP™ (2mm x 1mm) or
8-pin TDFN (3mm x 3mm) package.
Features
Two Low-Dropout-Voltage Regulators
Low 32µV
RMS
Output Noise
300mA Output Current for Each LDO
70dB PSRR at 10kHz
Independent Shutdown Controls
Low 60mV Dropout at 100mA Load
115µA Operating Supply Current per LDO
1.5V to 3.3V Factory-Preset Output
Small Ceramic Output Capacitors
Output Current Limit
Thermal-Overload and Short-Circuit Protection
1.95W Power-Dissipation Capability (TDFN)
2mm
2
Footprint (UCSP)
MAX8559
Ordering Information
Applications
Cellular and Cordless Phones
PDAs and Palmtop Computers
Notebook Computers
Digital Cameras
PCMCIA Cards
Wireless LAN Cards
Handheld Instruments
PART
MAX8559EBAxy*-T
MAX8559EBAxy*+T
MAX8559ETAxy*-T
MAX8559ETAxy*+T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 UCSP (B8-1)
8 UCSP (B8-1)
8 TDFN-EP**
8 TDFN-EP**
*xy
= Output voltage code (see the Output Voltage
Selector Guide).
**EP
= Exposed pad.
+Denotes
lead-free package.
Typical Operating Circuit
OUTA
TOP VIEW
Pin Configurations
GND
BP
OUTB
INPUT
2.5V TO 6.5V
2.2μF
min
8
7
6
5
INA
INB
OUTA
1.5V TO 3.3V
2.2μF/150mA
4.7μF/300mA
MAX8559ETA
ON
OFF
ON
OFF
SHDNB
GND
BP
0.01μF
(OPTIONAL)
SHDNA
MAX8559
OUTB
1.5V TO 3.3V
2.2μF/150mA
4.7μF/300mA
INA
2
SHDNA
3
SHDNB
4
INB
TDFN
3mm x 3mm
A "+" SIGN WILL REPLACE THE FIRST PIN INDICATOR ON LEAD-FREE PACKAGES.
Pin Configurations continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
Output Voltage 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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