Manufacturer Part Number
LTC3859ALEUHF#TRPBF
Manufacturer
Analog Devices
Introduction
A high performance, versatile power management integrated circuit for various DC configurations.
Product Features and Performance
Triple output DC-DC controller
Support for step-down, step-up/step-down, buck, buck-boost, SEPIC topology
Synchronous rectification for efficiency
Supports a wide range of supply voltages from 4.5V to 38V
Switching frequency range from 115kHz to 835kHz
High duty cycle operation (up to 99% and 100%)
Multiphase operation capability with 2 phases
Product Advantages
High efficiency for power saving
Accurate power delivery control
Flexible design for multiple applications
Can handle a variety of load conditions with three outputs
Thermal performance enhanced by exposed pad package
Key Technical Parameters
Voltage supply range: 4.5V ~ 38V
Switching frequency range: 115kHz ~ 835kHz, 350kHz ~ 535kHz
Maximum duty cycle: 99%, 100%
Number of outputs: 3
Output Phases: 2
Quality and Safety Features
Built-in soft-start for controlled start-up
Over-temperature protection with an operating range of -40°C ~ 125°C
Compatibility
Surface mount 38-WFQFN Exposed Pad which fits standard QFN footprints
Application Areas
Telecommunication systems
Computing systems
Automotive systems
Industrial and portable equipment
Product Lifecycle
Active product status, not nearing discontinuation
Availability of replacements or upgrades should be monitored through Analog Devices product updates
Several Key Reasons to Choose This Product
Highly integrated solution reduces BOM count and system complexity
Flexibility in handling multiple topologies and voltage ranges
Efficient power delivery tailored for precision applications
Robust design suitable for harsh environments
Long operational life with active product support
