MAX1818
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MAX1818

500mA, Low-Dropout Linear Regulator in SOT23

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Part Models 9
1ku List Price Starting From $1.37
Features
  • Guaranteed 500mA Output Current
  • Low 120mV Dropout at 500mA
  • ±1% Output Voltage Accuracy
    • Preset at 1.5V, 1.8V, 2.0V, 2.5V, 3.3V, 5V
    • Adjustable from 1.25V to 5.0V
  • Power OK Output
  • Low 125µA Ground Current
  • 0.1µA Shutdown Current
  • Thermal Overload Protection
  • Output Current Limit
  • Tiny 800mW 6-Pin SOT23 Package
Additional Details
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The MAX1818 low-dropout linear regulator operates from a +2.5V to +5.5V supply and delivers a guaranteed 500mA load current with low 120mV dropout. The high-accuracy (±1%) output voltage is preset at an internally trimmed voltage (see Selector Guide in the full data sheet) or can be adjusted from 1.25V to 5.0V with an external resistive 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 equipment such as personal digital assistants (PDAs), cellular 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 regulation, a 0.1µA shutdown, short-circuit protection, and thermal shutdown protection. The device is available in a miniature 800mW 6-pin SOT23 package.

Applications

  • Cell Phones/Cordless Phones
  • Docking Stations
  • Notebook Computers
  • Palmtop Computers
  • PDAs and Other Handheld Devices
  • USB Hubs
  • Wireless Base Stations
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file View Data Sheet (Rev.3)
Documentation View All Documentation
Part Models 9
1ku List Price Starting From $1.37
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MAX1818

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Data Sheet

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UPDATED 08/18/2008
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MAX1818: 500mA, Low-Dropout Linear Regulator in SOT23 Data Sheet (Rev.3)

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UPDATED 01/01/1900
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MAX1818: 500mA、低压差线性稳压器，SOT23封装 Data Sheet

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UPDATED 03/06/2012
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MAX1818: 500mA、低ドロップアウト、リニアレギュレータ、SOT23 Data Sheet (Rev.2)

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Reliability Data

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UPDATED 01/12/2023
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MAX1818 Reliability Data redirect icon

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Design Note

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UPDATED 06/03/2009
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Using a Linear Regulator to Produce a Constant Current Source redirect icon

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Documentation

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX1818EUT15+ 6-SOT_23-N/A external-link
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  • Material Declaration external-link
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MAX1818EUT15+T 6-SOT_23-N/A external-link
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MAX1818EUT18+T 6-SOT_23-N/A external-link
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MAX1818EUT25+ 6-SOT_23-N/A external-link
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MAX1818EUT25+T 6-SOT_23-N/A external-link
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MAX1818EUT33+ 6-SOT_23-N/A external-link
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MAX1818EUT33+T 6-SOT_23-N/A external-link
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MAX1818EUT50+ 6-SOT_23-N/A external-link
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MAX1818EUT50+T 6-SOT_23-N/A external-link
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX1818EVKIT

Evaluation Kit for the MAX1818EUT15, MAX1818EUT18, MAX1818EUT20, MAX1818EUT25, MAX1818EUT33, MAX1818EUT50

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MAX1818EVKIT

Evaluation Kit for the MAX1818EUT15, MAX1818EUT18, MAX1818EUT20, MAX1818EUT25, MAX1818EUT33, MAX1818EUT50

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MAX1818EVKIT
Evaluation Kit for the MAX1818EUT15, MAX1818EUT18, MAX1818EUT20, MAX1818EUT25, MAX1818EUT33, MAX1818EUT50

Features and Benefits

  • +2.5V to +5.5V Input Voltage Range
  • Up to 500mA Output Current
  • Output Voltage
    • +1.8V Fixed Output Voltage (MAX1818EUT18)
    • +1.25 to +5.0V Adjustable Output Voltage (External Divider)
  • Power-OK Output
  • 6-Pin SOT23 Package
  • Surface-Mount Construction
  • Fully Assembled and Tested
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Product Detail

The MAX1818 linear regulator evaluation kit (EV kit) provides a regulated +1.8V output voltage from a +2.5V to +5.5V input source. It delivers up to 500mA output current.

The EV kit is a fully assembled and tested surface-mount PC board. It can also evaluate other preset voltages and other output voltages in the +1.25V to +5.0V range by using external resistors.

Evaluation Kits1

MAX1818EVKIT

Evaluation Kit for the MAX1818EUT15, MAX1818EUT18, MAX1818EUT20, MAX1818EUT25, MAX1818EUT33, MAX1818EUT50

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