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ANALOG DEVICES 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
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Technical Datasheet:
MAX1677EEE+   Datasheet
ECAD / MCAD
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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

:
700mV

:
5.5V

:
QSOP

:
16Pins

:
350mA

:
350mA

:
3.3V

:
28V

:
Fixed, Adjustable

:
400kHz

:
Boost (Step Up)

:
85°C

:
-

:
MSL 1 - Unlimited

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Technical Documents (1)

Available for back order

More stock available to supplier lead times which is approximately 5/2/24

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

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