MAX1818EUT15#TG16 Maxim Integrated Products, MAX1818EUT15#TG16 Datasheet

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MAX1818EUT15#TG16

Manufacturer Part Number
MAX1818EUT15#TG16
Description
IC REG LDO 1.5/ADJ 500MA SOT23-6
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1818EUT15#TG16

Regulator Topology
Positive Fixed or Adjustable
Voltage - Output
1.5V, 1.25 ~ 5 V
Voltage - Input
2.5 ~ 5.5 V
Number Of Regulators
1
Current - Output
500mA (Min)
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-6
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Dropout (typical)
-
Current - Limit (min)
-

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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.
19-1860; Rev 2; 6/08
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.
TOP VIEW
Notebook Computers
Cellular and Cordless Telephones
Personal Digital Assistants (PDAs)
Palmtop Computers
Base Stations
USB Hubs
Docking Stations
SHDN
POK
IN
________________________________________________________________ Maxim Integrated Products
1
2
3
General Description
MAX1818
SOT23
Pin Configuration
6
5
4
Applications
OUT
SET
GND
Linear Regulator in SOT23
♦ Guaranteed 500mA Output Current
♦ Low 120mV Dropout at 500mA
♦ ±1% Output Voltage Accuracy
♦ Power OK Output
♦ Low 125µA Ground Current
♦ 0.1µA Shutdown Current
♦ Thermal Overload Protection
♦ Output Current Limit
♦ Tiny 800mW 6-Pin SOT23 Package
Selector Guide appears at end of data sheet.
Note
profile described in the Absolute Maximum Ratings section.
T = Tape and reel.
# Denotes an RoHS-compliant package.
* Insert the desired two-digit suffix (see Selector Guide) into the
blanks to complete the part number.
MAX1818EUT_ _-T
MAX1818EUT_ _#T
ON
V
IN
:
C
1μF
The MAX1818 requires a special solder temperature
= 2.5V TO 5.5V
IN
Preset at 1.5V, 1.8V, 2.0V, 2.5V, 3.3V, 5V
Adjustable from 1.25V to 5.0V
500mA Low-Dropout
PART*
OFF
Typical Operating Circuit
IN
NC
SHDN
SET
-40°C to +85°C
-40°C to +85°C
Ordering Information
TEMP RANGE
MAX1818
GND
OUT
POK
PIN-PACKAGE
6 SOT23
6 SOT23
Features
R
100k
POK
C
3.3μF
OUT
TO
μC
V
OUT
1

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MAX1818EUT15#TG16 Summary of contents

Page 1

... POK 2 5 SHDN 3 4 SOT23 ________________________________________________________________ Maxim Integrated Products 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. 500mA Low-Dropout Linear Regulator in SOT23 ♦ Guaranteed 500mA Output Current ♦ Low 120mV Dropout at 500mA ♦ ±1% Output Voltage Accuracy Preset at 1 ...

Page 2

... SET Dual Mode™ Threshold SET Input Bias Current Ground-Pin Current Dropout Voltage (Note ΔV Line Regulation Dual Mode is a trademark of Maxim Integrated Products 2 _______________________________________________________________________________________ Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C + 0.3V) IN Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) (Note 2) ...................+300° ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) = +2.5V, whichever is greater; SHDN = IN 500mV OUT IN are +25°C.) (Note 3) A PARAMETER SYMBOL ΔV Load Regulation Output Voltage Noise SHUTDOWN Shutdown ...

Page 4

Low-Dropout Linear Regulator in SOT23 + 500mV) or +2.5V, whichever is greater; SHDN = IN OUT DROPOUT VOLTAGE vs. LOAD CURRENT 180 V = 3.3V OUT T = +85°C 150 A 120 90 T ...

Page 5

SHDN = IN OUT SHUTDOWN WAVEFORM SHUTDOWN VOLTAGE V OUT POK 200μs/div PIN NAME Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with a 1μF ...

Page 6

Low-Dropout Linear Regulator in SOT23 V = 2. 1μF ON SHDN OFF SHUTDOWN LOGIC SUPPLY VOLTAGE (V ) OUT R POK 100k MAX1818 POK TO μC Figure 1. Functional Diagram Additional blocks include ...

Page 7

V = 2. OUT C IN MAX1818 1μF ON SHDN SET OFF POK GND Figure 2. Adjustable Output Using External Feedback Resistors The power OK (POK) output pulls low when OUT is less than 93% of ...

Page 8

Low-Dropout Linear Regulator in SOT23 Applications Information Capacitor Selection and Regulator Stability Capacitors are required at the MAX1818’s input and output for stable operation over the full temperature range and with load currents up to 500mA. Connect a 1µF ...

Page 9

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9 © 2008 Maxim Integrated Products ...

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