MAX8559ETAKG-T Maxim Integrated Products, MAX8559ETAKG-T Datasheet

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MAX8559ETAKG-T

Manufacturer Part Number
MAX8559ETAKG-T
Description
Low Dropout (LDO) Regulators Dual 300mA Low-Noise Linear Regulator
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX8559ETAKG-T

Number Of Outputs
2
Polarity
Positive
Input Voltage Max
6.5 V
Output Voltage
2.8 V, 3 V
Output Type
Fixed
Dropout Voltage (max)
120 mV
Output Current
0.3 A
Line Regulation
0 %/V
Voltage Regulation Accuracy
1 %
Maximum Power Dissipation
1951 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TDFN EP-8
Minimum Operating Temperature
- 40 C
Reference Voltage
1.25 V
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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
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.
19-3121; Rev 2; 8/05
UCSP is a trademark of Maxim Integrated Products, Inc.
Output Voltage Selector Guide appears at end of data sheet.
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.
2.2μF
2.5V TO 6.5V
min
RMS
INPUT
Cellular and Cordless Phones
PDAs and Palmtop Computers
Notebook Computers
Digital Cameras
PCMCIA Cards
Wireless LAN Cards
Handheld Instruments
OFF
OFF
, and PSRR is 70dB at 10kHz. Designed with
ON
ON
with Independent Shutdown in UCSP or TDFN
Typical Operating Circuit
SHDNB
INA
INB
SHDNA
________________________________________________________________ Maxim Integrated Products
Dual, 300mA, Low-Noise Linear Regulator
General Description
MAX8559
GND
OUTA
OUTB
Applications
BP
0.01μF
(OPTIONAL)
1.5V TO 3.3V
1.5V TO 3.3V
2.2μF/150mA
4.7μF/300mA
2.2μF/150mA
4.7μF/300mA
♦ Two Low-Dropout-Voltage Regulators
♦ Low 32µV
♦ 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
*xy = Output voltage code (see the Output Voltage
Selector Guide).
**EP = Exposed pad.
+Denotes lead-free package.
MAX8559EBAxy*-T
MAX8559EBAxy*+T
MAX8559ETAxy*-T
MAX8559ETAxy*+T
Pin Configurations continued at end of data sheet.
A "+" SIGN WILL REPLACE THE FIRST PIN INDICATOR ON LEAD-FREE PACKAGES.
PART
2
Footprint (UCSP)
TOP VIEW
RMS
Output Noise
8
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Ordering Information
3mm x 3mm
TEMP RANGE
MAX8559ETA
TDFN
7
2
Pin Configurations
6
3
5
4
PIN-PACKAGE
8 UCSP (B8-1)
8 UCSP (B8-1)
8 TDFN-EP**
8 TDFN-EP**
Features
1

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MAX8559ETAKG-T Summary of contents

Page 1

... OFF ON OFF SHDNB GND UCSP is a trademark of Maxim Integrated Products, Inc. Output Voltage Selector Guide appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. ♦ Two Low-Dropout-Voltage Regulators ♦ ...

Page 2

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN ABSOLUTE MAXIMUM RATINGS SHDNA, SHDNB GND ...................-0.3V to +7V INA, INB, INA to INB..............................................................-0.3V to +0.3V OUTA, OUTB to GND ..................................-0. Output Short-Circuit Duration.....................................Continuous ...

Page 3

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN ELECTRICAL CHARACTERISTICS (continued) = 3.8V, SHDNA = SHDNB = IN_ PARAMETER SYMBOL SHDN Input Bias Current V Discharge Resistance in OUT_ Shutdown THERMAL PROTECTION Thermal-Shutdown ...

Page 4

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN ( 2.85V 3.8V, C OUTA OUTB INA INB 300mA), unless otherwise noted.) DROPOUT VOLTAGE vs. LOAD CURRENT 200 180 160 140 ...

Page 5

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN ( 2.85V OUTA OUTB INA INB 300mA), unless otherwise noted.) OUTPUT NOISE (10Hz to 100kHz) V OUT_ 1ms/div LOAD TRANSIENT V OUTA ...

Page 6

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN PIN NAME TDFN UCSP LDO A Regulator Input. Connect to INB. Input voltage can range from 2.5V to 6.5V. Bypass INA 1 A1 INA with a ceramic capacitor ...

Page 7

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN quiescent current at no load and 220µA with 100mA load current on both outputs (see the Typical Operating Characteristics). A PNP-based regulator has a high dropout voltage that ...

Page 8

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN Load-Transient Considerations The MAX8559 load-transient response graphs (see the Typical Operating Characteristics) show two compo- nents of the output response shift in the output voltage due ...

Page 9

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN INA MAX8559 SHDNA SHUTDOWN AND POWER-ON SHDNB CONTROL THERMAL SENSOR GND INB _______________________________________________________________________________________ MOS DRIVER ERROR WITH I AMP 1.25V LDOA REF SHDNA LDOB Functional Diagram P LIMIT ...

Page 10

... MAX8559EBAGG 3.00 MAX8559EBAAA 3.30 MAX8559ETA88 1.50 MAX8559ETA8A 1.50 MAX8559ETA22 1.80 MAX8559ETA2G 1.80 MAX8559ETA11 1.85 MAX8559ETAP2 2.50 MAX8559ETAO1 2.60 MAX8559ETAK2 2.80 MAX8559ETAKG 2.80 MAX8559ETAJ2 2.85 MAX8559ETAJJ 2.85 MAX8559ETAJG 2.85 MAX8559ETAII 2.90 MAX8559ETAG2 3.00 MAX8559ETAGG 3.00 MAX8559ETAAO 3.30 MAX8559ETAAJ 3.30 MAX8559ETAAA 3.30 Note: Standard output voltage options, shown in bold, are available ...

Page 11

Dual, 300mA, Low-Noise Linear Regulator with Independent Shutdown in UCSP or TDFN (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products ...

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