LTC3890IUH#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC3890IUH#PBF

Manufacturer

Analog Devices

Introduction

High-performance Power Management Integrated Circuit (PMIC) for DC-DC conversion

Product Features and Performance

PolyPhase® series

Step-down switching controller

Dual outputs for multi-phase operation

Supports wide input voltage range from 4V to 60V

Adjustable switching frequency between 105kHz and 835kHz

High duty cycle up to 99% for low dropout operations

Integrated synchronous rectifier for improved efficiency

Soft start to prevent inrush current during startup

Power Good signal for output voltage monitoring

Frequency Control for optimized performance

Current Limit for over-current protection

Phase Control to manage multi-phase operation

Operates at an extended temperature range of -40°C to 125°C

Product Advantages

High efficiency due to synchronous rectification

Reliable performance with the integration of multiple control features

Supports a wide range of input voltages, suitable for various applications

Two output phases for balanced power distribution and reduced ripple

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Number of Outputs: 2

Output Phases: 2

Voltage - Supply (Vcc/Vdd): 4V ~ 60V

Frequency - Switching: 105kHz ~ 835kHz, 350kHz ~ 535kHz

Duty Cycle (Max): 99%

Synchronous Rectifier: Yes

Quality and Safety Features

Over-current protection

Thermal shutdown at junction temperature (TJ) of 125°C

Compatibility

Surface Mount compatible

32-WFQFN Exposed Pad package

Standard QFN footprint for ease of integration

Application Areas

High-density power distribution systems

Networking and telecommunications

Industrial power supplies

Automotive electronics

Datacom infrastructure

Product Lifecycle

Status: Active

Not nearing discontinuation

Replacements or upgrades should be available if needed

Several Key Reasons to Choose This Product

Robust power management solution for demanding applications

Highly efficient and precise DC-DC conversion

Versatile input voltage and dual-phase output cater to a broad range of devices

Comprehensive protection and control features ensure system stability

Extended operating temperature range suitable for industrial and automotive environments

Supported by a reputable manufacturer with a proven track record in power management solutions