Maxim Integrated MAX769EEI
- Part Number:
- MAX769EEI
- Manufacturer:
- Maxim Integrated
- Ventron No:
- 3265704-MAX769EEI
- Description:
- IC PAGER SYSTEM 28-QSOP
- ECAD Model:
-
- Datasheet:
- MAX769EEI
Description
The MAX769 is a complete buck/boost power supply and monitoring system for two-way pagers or other low-power digital communications devices. It includes:
An 80mA output, synchronous-rectified, buck/boost DC-DC converter with a digitally controlled 1.8V to 4.9V output
Three low-noise linear-regulator outputs
Three DAC-controlled comparators for software-driven, 3-channel A/D conversion
SPI compatible serial interface
Reset and low-battery (LBO) warning outputs
Charger for NiCd/NiMH, lithium battery, or storage capacitor for RF PA power or system backup
Two 1.80 (typical), serial-controlled, open-drain MOSFET switches for beeper or vibrator drive
Features
Regulated Step-Up/Step-Down Operation
80mA Output from 3 Cells
85% Efficiency
13μA Idle Mode™ (coast) Current
Selectable Low-Noise PWM or Low-Current PFM Operation
PWM Operating Frequency Synchronized to Seven Times an External Clock Source
Operates at 270kHz with No External Clock
Automatic Backup-Battery Switchover
Applications
Two-Way Pagers
GPS Receivers
2 or 3-Cell Powered, Hand-Held Equipment
The MAX769 is a complete buck/boost power supply and monitoring system for two-way pagers or other low-power digital communications devices. It includes:
An 80mA output, synchronous-rectified, buck/boost DC-DC converter with a digitally controlled 1.8V to 4.9V output
Three low-noise linear-regulator outputs
Three DAC-controlled comparators for software-driven, 3-channel A/D conversion
SPI compatible serial interface
Reset and low-battery (LBO) warning outputs
Charger for NiCd/NiMH, lithium battery, or storage capacitor for RF PA power or system backup
Two 1.80 (typical), serial-controlled, open-drain MOSFET switches for beeper or vibrator drive
Features
Regulated Step-Up/Step-Down Operation
80mA Output from 3 Cells
85% Efficiency
13μA Idle Mode™ (coast) Current
Selectable Low-Noise PWM or Low-Current PFM Operation
PWM Operating Frequency Synchronized to Seven Times an External Clock Source
Operates at 270kHz with No External Clock
Automatic Backup-Battery Switchover
Applications
Two-Way Pagers
GPS Receivers
2 or 3-Cell Powered, Hand-Held Equipment
Maxim Integrated MAX769EEI technical specifications, attributes, parameters and parts with similar specifications to Maxim Integrated MAX769EEI .
- Factory Lead Time13 Weeks
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / Case28-SSOP (0.154, 3.90mm Width)
- Number of Pins28
- Operating Temperature-40°C~85°C
- PackagingTube
- Published1998
- JESD-609 Codee3
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations28
- ECCN CodeEAR99
- Terminal FinishMatte Tin (Sn)
- ApplicationsHandheld/Mobile Devices
- HTS Code8542.39.00.01
- Voltage - Supply1.5V~5.5V
- Terminal PositionDUAL
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)260
- Number of Functions1
- Terminal Pitch0.635mm
- Base Part NumberMAX769
- Pin Count28
- Operating Supply Current4μA
- Telecom IC TypeTELECOM CIRCUIT
- Height Seated (Max)1.73mm
- Length9.89mm
- Width3.9mm
- Radiation HardeningNo
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
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