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MAX769 - 2 or 3-Cell / Step-Up/Down / Two-Way Pager System

Description

The MAX769 is a complete buck/boost power supply and monitoring system for two-way pagers or other lowpower digital communications devices.

Few external components are required.

An 80mA output, synchronous-rectified, buck/boost DC-DC converter with a digitally control

Features

  • o Regulated Step-Up/Step-Down Operation o 80mA Output from 3 Cells o 85% Efficiency o 13µA Idle Mode™ (coast) Current o Selectable Low-Noise PWM or Low-Current PFM Operation o PWM Operating Frequency Synchronized to Seven Times an External Clock Source o Operates at 270kHz with No External Clock o Automatic Backup-Battery Switchover ________________General.

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Datasheet preview – MAX769

Datasheet Details

Part number MAX769
Manufacturer Maxim
File Size 161.65 KB
Description 2 or 3-Cell / Step-Up/Down / Two-Way Pager System
Datasheet download datasheet MAX769 Datasheet
Additional preview pages of the MAX769 datasheet.

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Full PDF Text Transcription

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19-4771; Rev 1; 10/98 ANUAL N KIT M EET IO T A U EVAL TA SH WS DA FOLLO 2 or 3-Cell, Step-Up/Down, Two-Way Pager System IC ____________________________Features o Regulated Step-Up/Step-Down Operation o 80mA Output from 3 Cells o 85% Efficiency o 13µA Idle Mode™ (coast) Current o Selectable Low-Noise PWM or Low-Current PFM Operation o PWM Operating Frequency Synchronized to Seven Times an External Clock Source o Operates at 270kHz with No External Clock o Automatic Backup-Battery Switchover ________________General Description The MAX769 is a complete buck/boost power supply and monitoring system for two-way pagers or other lowpower digital communications devices. Few external components are required.
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