MAX1776
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MAX1776

24V, 600mA Internal Switch, 100% Duty Cycle, Step-Down Converter

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1ku List Price Starting From $4.69
Features
  • Fixed 5V or Adjustable Output
  • 4.5V to 24V Input Voltage Range
  • Up to 600mA Output Current
  • Internal 0.4Ω P-Channel MOSFET
  • Efficiency Over 95%
  • 15µA Quiescent Supply Current
  • 3µA Shutdown Current
  • 100% Maximum Duty Cycle for Low Dropout
  • Current-Limited Architecture
  • Thermal Shutdown
  • Small 8-µMAX Package
Additional Details
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The MAX1776 high-efficiency step-down converter provides an adjustable output voltage from 1.25V to VIN from supply voltages as high as 24V. An internal current-limited 0.4Ω MOSFET delivers load currents up to 600mA. Operation to 100% duty cycle minimizes dropout voltage (240mV at 600mA).

The MAX1776 has a low 15µA quiescent current to improve light-load efficiency and conserve battery life. The device draws only 3µA while in shutdown.

High switching frequencies (up to 200kHz) allow the use of tiny surface-mount inductors and output capacitors. The MAX1776 is available in an 8-pin µMAX package, which uses half the space of an 8-pin SO. For increased output drive capability, use the MAX1626/ MAX1627 step-down controllers, which drive an external P-channel MOSFET to deliver up to 20W.

Applications

  • Distributed Power Systems
  • Handheld Devices
  • Keep-Alive Supplies
  • Notebook Computers
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file View Data Sheet (Rev.2)
Documentation View All Documentation
Part Models 2
1ku List Price Starting From $4.69
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MAX1776

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Data Sheet

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UPDATED 07/22/2003
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MAX1776: 24V, 600mA Internal Switch, 100% Duty Cycle, Step-Down Converter Data Sheet (Rev.2)

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UPDATED 01/01/1900
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MAX1776: 24V、600mA内置开关、100%占空比、降压型转换器 Data Sheet

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UPDATED 01/01/1900
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MAX1776: 24V、600mA内部スイッチ、100%デューティサイクル、ステップダウンコンバータ Data Sheet

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UPDATED 01/12/2023
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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
MAX1776EUA+ Micro-MAX, Thin Shrink Small-Outline external-link
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MAX1776EUA+T Micro-MAX, Thin Shrink Small-Outline external-link
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Software & Part Ecosystem

Parts Product Life Cycle Description

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24V Internal Switch, 100% Duty Cycle, Step-Down Converters

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PRODUCTION

24V Internal Switch, 100% Duty Cycle, Step-Down Converters

Evaluation Kits 1

MAX1776EVKIT

Evaluation Kit for the MAX1776

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MAX1776EVKIT

Evaluation Kit for the MAX1776

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MAX1776EVKIT
Evaluation Kit for the MAX1776

Features and Benefits

  • +5.5V to +24V Input Voltage Range (for Fixed +5V Output)
  • +4.5V to +24V Input Voltage Range (for +3.3V Output)
  • Output Voltage Fixed +5V Adjustable Output (+1.25V to +23.5V)
  • 500mA Output Current
  • 3µA IC Shutdown Mode
  • 8-Pin µMAX Package
  • Surface-Mount Construction
  • Fully Assembled and Tested
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Product Detail

The MAX1776 evaluation kit (EV kit) provides a +5.0V output voltage from a +5.5V to +24V input source. It delivers 500mA output current and operates up to 100% duty cycle at dropout. The MAX1776 is a step-down switching regulator with an internal power switch.

The EV kit is a fully assembled and tested surface-mount PC board. It can also be used to evaluate other output voltages in the +1.25V to +23.5V range by adding the feedback resistors and changing a jumper setting.

Applications

  • Distributed Power Systems
  • Handheld Devices
  • Keep-Alive Supplies
  • Notebook Computers

Evaluation Kits1

MAX1776EVKIT

Evaluation Kit for the MAX1776

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