http://www.www.datasheet4u.com

900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1818 Datasheet

500mA Low-Dropout Linear Regulator in SOT23

No Preview Available !

MAX1818 pdf
19-1860; Rev 1; 3/01
500mA Low-Dropout
Linear Regulator in SOT23
General Description
The MAX1818 low-dropout linear regulator operates
from a +2.5V to +5.5V supply and delivers a guaran-
teed 500mA load current with low 120mV dropout. The
high-accuracy (±1%) output voltage is preset at an
internally trimmed voltage (see Selector Guide) or can
be adjusted from 1.25V to 5.0V with an external resis-
tive divider.
An internal PMOS pass transistor allows the low 125µA
supply current to remain independent of load, making
this device ideal for portable battery-operated equip-
ment such as personal digital assistants (PDAs), cellu-
lar phones, cordless phones, base stations, and
notebook computers.
Other features include an active-low open-drain reset
output that indicates when the output is out of regula-
tion, a 0.1µA shutdown, short-circuit protection, and
thermal shutdown protection. The device is available in
a miniature 800mW 6-pin SOT23 package.
Applications
Notebook Computers
Cellular and Cordless Telephones
Personal Digital Assistants (PDAs)
Palmtop Computers
Base Stations
USB Hubs
Docking Stations
Pin Configuration
Features
o Guaranteed 500mA Output Current
o Low 120mV Dropout at 500mA
o ±1% Output Voltage Accuracy
Preset at 1.5V, 1.8V, 2.0V, 2.5V, 3.3V, 5V
Adjustable from 1.25V to 5.0V
o Power OK Output
o Low 125µA Ground Current
o 0.1µA Shutdown Current
o Thermal Overload Protection
o Output Current Limit
o Tiny 800mW 6-Pin SOT23 Package
Ordering Information
PART*
TEMP RANGE PIN-PACKAGE
MAX1818EUAT_ _ -40°C to +85°C 6 SOT23-6
*Insert the desired two-digit suffix (see Selector Guide) into the
blanks to complete the part number.
Note: The MAX1818 requires a special solder temperature
profile described in the Absolute Maximum Ratings section.
Selector Guide
PART AND
SUFFIX
MAX1818EUT15
MAX1818EUT18
MAX1818EUT20
MAX1818EUT25
MAX1818EUT33
MAX1818EUT50
VOUT
1.5V or Adj
1.8V or Adj
2.0V or Adj
2.5V or Adj
3.3V or Adj
5.0V or Adj
SOT23
TOP MARK
AASO
AANU
AANV
AANF
AANG
AANH
Typical Operating Circuit
TOP VIEW
IN 1
6 OUT
MAX1818
POK 2
5 SET
SHDN 3
4 GND
SOT23
VIN = 2.5V TO 5.5V
CIN
1µF
NINC
OUT
MAX1818
ON
SHDN
OFF
POK
SET GND
VOUT
COUT
3.3µF
RPOK
100k
TO
µC
________________________________________________________________ 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1818 Datasheet

500mA Low-Dropout Linear Regulator in SOT23

No Preview Available !

MAX1818 pdf
500mA Low-Dropout
Linear Regulator in SOT23
ABSOLUTE MAXIMUM RATINGS
IN, SHDN, POK, SET to GND ...................................-0.3V to +6V
OUT to GND ................................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration ...............................................1min
Continuous Power Dissipation (TA = +70°C) (Note 1)
6-Pin SOT23 (derate 10mW/°C above +70°C)..............800mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) (Note 2) ...................+300°C
Note 1: Thermal properties are specified with product mounted on PC board with one square-inch of copper area and still air. With
minimal copper, the SOT23 package dissipates 712mW at +70°C. With a quarter square inch of copper, it will dissipate
790mW at +70°C. Copper should be equally shared between the IN, OUT, and GND pins.
Note 2: This device is constructed using a unique set of packaging techniques that imposes a limit on the thermal profile to which
the device can be exposed during board-level solder attach and rework. The limit permits only the use of the solder profiles
recommended in the industry standard specification, IPC JEDEC-J-STD-020A, paragraph 7.6, Table 3 for the IR/VPR and
convection reflow. Preheating is required. Hand or wave soldering is not allowed.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VIN = VOUT + 500mV or VIN = +2.5V, whichever is greater; SHDN = IN, TA = -40°C to +85°C, unless otherwise noted. Typical values
are at TA = +25°C.) (Note 3)
PARAMETER
Input Voltage
Input Undervoltage Lock-Out
Output Voltage Accuracy
(Preset Mode)
SYMBOL
VIN
VUVLO
VOUT
CONDITIONS
Rising, 75mV hysteresis
IOUT = 100mA, TA = +25°C, VOUT 2.0V
IOUT = 100mA, VOUT < 2.0V
IOUT = 100mA, TA = -40°C to +85°C
IOUT = 1mA to 500mA, VIN > VOUT + 0.5V,
TA = -40°C to +85°C
MIN TYP MAX UNITS
2.5 5.5 V
2.0 2.15
2.3
V
-1 +1
-1.5 +1.5
-2.5
+2.5
%
-3 +3
Adjustable Output Voltage
Range
1.25 5 V
SET Voltage Threshold
(Adjustable Mode)
VSET
VIN = 2.7V,
IOUT = 100mA,
VOUT set to 2.0V
TA = 0°C to +85°C
TA = -40°C to +85°C
Guaranteed Output Current
(RMS)
IOUT
VIN 2.7V
Short-Circuit Current Limit
In-Regulation Current Limit
SET Dual ModeThreshold
ILIM VOUT = 0, VIN 2.7V
VOUT > 96% of nominal value, VIN 2.7V
SET Input Bias Current
Ground-Pin Current
Dropout Voltage (Note 4)
ISET VSET = 1.25V
IQ IOUT = 100µA
IOUT = 500mA
VIN - VOUT IOUT = 500mA
VOUT = 5V
VOUT = 3.3V
VOUT = 2.5V
Line Regulation
VLNR
VIN from (VOUT + 100mV) to 5.5V,
ILOAD = 5mA
Dual Mode is a trademark of Maxim Integrated Products
1.225
1.213
1.250
1.275
1.288
V
500 mA
0.55 0.8 1.8 A
1.6 A
50 100 150 mV
-100
+100 nA
125 250
µA
140
100 220
120 215 mV
210 360
-0.15 0 +0.15 %/V
2 _______________________________________________________________________________________


Part Number MAX1818
Description 500mA Low-Dropout Linear Regulator in SOT23
Maker Maxim
Total Page 9 Pages
PDF Download
MAX1818 pdf
MAX1818 Datasheet PDF
[partsNo] view html
View PDF for Mobile








Similar Datasheet

1 MAX181 Network Interface Card Smart Regulator Maxim
Maxim
MAX181 pdf
2 MAX1810 Network Interface Card Smart Regulator Maxim
Maxim
MAX1810 pdf
3 MAX1811 USB-Powered Li+ Charger Maxim
Maxim
MAX1811 pdf
4 MAX1812 Dual USB Switch with Fault Blanking Maxim
Maxim
MAX1812 pdf
5 MAX1813 Dynamically-Adjustable / Synchronous Step-Down Controller with Integrated Voltage Positioning Maxim
Maxim
MAX1813 pdf
6 MAX1816 Dual Step-Down Controllers Plus Linear Regulator Controller Maxim
Maxim
MAX1816 pdf
7 MAX1817 Compact / High-Efficiency / Dual-Output Step-Up DC-DC Converter Maxim
Maxim
MAX1817 pdf
8 MAX1818 500mA Low-Dropout Linear Regulator in SOT23 Maxim
Maxim
MAX1818 pdf





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy