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MAX1677EEE+

DC/DC Switching Regulator, Boost, 2 Output, 700 mV to 5.5 V in, 3.3 V/350 mA out, 400 kHz, QSOP-16

ANALOG DEVICES MAX1677EEE+
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Manufacturer Part No:
MAX1677EEE+
Order Code:
2517115
Technical Datasheet:
MAX1677EEE+   Datasheet
See all Technical Docs

Product Overview

The MAX1677EEE+ is a compact, high-efficiency, dual-output step-up and LCD bias DC to DC converter in 16 pin QSOP package. It is a compact, high-efficiency, dual-output boost converter for portable devices needing two regulated supplies typically for logic and liquid crystal displays. Operation with inputs as low as 0.7V allows the MAX1677 to accept 1, 2 or 3-cell alkaline, NiCd or NiMH batteries as well as 1-cell lithium-ion batteries. The device requires no external FETs and can maintain regulation while consuming only 20µA, making it ideal for hand-held pen-input and PDA devices operating with low-current "sleep" states. The MAX1677's primary regulator supplies up to 350mA at either a factory-preset 3.3V or an adjustable 2.5V to 5.5V output. On-chip synchronous rectification provides efficiencies up to 95%. 300KHz (or externally clocked) PWM operation is particularly suitable for applications needing low noise, such as those with wireless features.
  • Supply voltage range is 0.7V to 5.5V
  • Operating temperature range from -40°C to 85°C
  • Up to +28V or -28V for LCD bias programmable current limit
  • Quiescent current is 20µA
  • Shutdown current is 1µA
  • Low battery comparator

Applications

Power Management, Portable Devices

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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2 Output

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700mV

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5.5V

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QSOP

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16Pins

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350mA

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350mA

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3.3V

:
28V

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Fixed, Adjustable

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400kHz

:
Boost (Step Up)

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85°C

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-

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MSL 1 - Unlimited

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Technical Documents (1)

CAD Downloads

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Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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20 UK stock available for 3-4 business days delivery

Due to market conditions delivery times are for general guidance only and may be subject to change at short notice

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