LTC3882EUJ#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LTC3882EUJ#TRPBF

Manufacturer

Analog Devices

Introduction

LTC3882 is a dual-output PolyPhase step-down DC/DC switching controller with PMBus interface.

Product Features and Performance

Dual-Channel PWM controller

Step-Down Voltage Regulation

PolyPhase Operation for Improved Efficiency

500kHz Switching Frequency for Small Inductor Size

I2C and PMBus Interface for Control and Monitoring

5% Maximum Duty Cycle

Supports Output Voltage Tracking and Margining

Phase-Lockable Frequency (250kHz to 750kHz)

Product Advantages

High Integration Reduces BOM Count and Complexity

Accurate Current Sensing for Overcurrent Protection

High Output Voltage Accuracy

Enhanced Light-Load Efficiency

Independent Control of Dual Outputs

Key Technical Parameters

Number of Outputs: 2

Output Phases: 2

Voltage - Supply (Vcc/Vdd): 3V to 13.8V

Frequency - Switching: 500kHz

Duty Cycle (Max): 87.5%

Clock Synchronization: Yes

Serial Interfaces: I2C and PMBus

Control Features: Enable, Phase Control

Operating Temperature: -40°C to 125°C (TJ)

Quality and Safety Features

Precision Reference Voltage for Accurate Output

Overcurrent Protection

PMBus Interface for Advanced Monitoring

Thermal Protection with Over-Temperature Shutdown

Compatibility

Compatible with a Variety of Output Capacitor Types

Flexible PWM for Use with a Wide Range of Inductor Values

PMBus Compatible for Digital Management

Application Areas

High-Density Distributed Power Systems

Point-of-Load Regulation for FPGA, ASIC, Processor Power

Telecommunications Infrastructure

Networking Equipment

Product Lifecycle

Status: Active

Evaluation Kits Available

Not Nearing Discontinuation

Replacements or Upgrades: Product Line is Continuously Updated

Several Key Reasons to Choose This Product

Industry-Leading Performance and Integration

Programmable Switching Frequency Aligns with System Requirements

High System Reliability through Advanced Monitoring and Protection

Optimized for Use in Dense and Compact Systems

Ease of Use with Digital Interface and Support for PMBus Standard

Flexibility in Design with Multiple Topology Support

Extended Temperature Range Suitable for Harsh Environments