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MAX858 - Step-Up DC-DC Converters

General Description

The MAX856

MAX859 are high-efficiency, CMOS, stepup, DC-DC switching regulators for small, low input volt age or battery-powered systems.

The MAX856/MAX858 accept a positive input voltage between 0.8V and V OUT and convert it to a higher, pin-selectable output voltage of 3.3V or 5V.

Key Features

  • o o o o o o o o o o 0.8V to 6.0V Input Supply Voltage 0.8V Typ Start-Up Supply Voltage 85% Efficiency at 100mA 25µA Quiescent Current 1µA Shutdown Mode 125mA and 500mA Switch-Current Limits Permit Use of Low-Cost Inductors Up to 500kHz Switching Frequency ±1.5% Reference Tolerance Over Temperature Low-Battery Detector (LBI/LBO) 8-Pin SO and µMAX Packages _______________General.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-0211; Rev 4; 5/96 NUAL KIT MA ATION SHEET A EVALU T A D WS FOLLO 3.3V/5V or Adjustable-Output, Step-Up DC-DC Converters ____________________________Features o o o o o o o o o o 0.8V to 6.0V Input Supply Voltage 0.8V Typ Start-Up Supply Voltage 85% Efficiency at 100mA 25µA Quiescent Current 1µA Shutdown Mode 125mA and 500mA Switch-Current Limits Permit Use of Low-Cost Inductors Up to 500kHz Switching Frequency ±1.5% Reference Tolerance Over Temperature Low-Battery Detector (LBI/LBO) 8-Pin SO and µMAX Packages _______________General Description The MAX856–MAX859 are high-efficiency, CMOS, stepup, DC-DC switching regulators for small, low input volt age or battery-powered systems. The MAX856/MAX858 accept a positive input voltage between 0.