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MAX1678 Datasheet PDF - Maxim Integrated

Part NameDescriptionManufacturer
MAX1678 1-Cell to 2-Cell, Low-Noise, High-Efficiency, Step-Up DC-DC Converter MaximIC
Maxim Integrated MaximIC
MAX1678 Datasheet PDF : MAX1678 pdf   
MAX1678EUA image

General Description
The MAX1678 is a high-efficiency, low-voltage, synchronous-rectified, step-up DC-DC converter intended for use in devices powered by 1 to 3-cell alkaline, NiMH, or NiCd batteries or a 1-cell lithium battery. It guarantees a 0.87V start-up voltage and features a low 37µA quiescent supply current.

Features
♦ 0.87V Guaranteed Start-Up
♦ Up to 90% Efficiency
♦ Built-In Synchronous Rectifier (no external diode)
♦ Ultra-Small µMAX Package, 1.1mm High
♦ 37µA Quiescent Current (85µA from 1.5V battery)
♦ 2µA Logic-Controlled Shutdown
♦ Power-Fail Detector
♦ Dual Mode™ Output: Fixed 3.3V Adjustable 2V to 5.5V
♦ 45mA Output Current at 3.3V for 1-Cell Input
♦ 90mA Output Current at 3.3V for 2-Cell Input
♦ Inductor-Damping Switch Suppresses EMI

Applications
    Pagers
    Remote Controls
    Pointing Devices
    Personal Medical Monitors
    Single-Cell Battery-Powered Devices


 

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