LTC3857EGN-1#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC3857EGN-1#PBF

Manufacturer

Analog Devices

Introduction

The LTC3857EGN-1#PBF is a high-performance Power Management Integrated Circuit (PMIC) tailored for DC-DC switching controllers. It facilitates efficient power conversion and management, designed to meet demanding requirements of contemporary electronics.

Product Features and Performance

Dual output, 2-phase synchronous step-down switching controller

Voltage supply range from 4V to 38V, suitable for a wide range of input voltages

Adjustable switching frequency from 105kHz to 835kHz and 350kHz to 535kHz

Supports up to 99.4% maximum duty cycle for low dropout operations

Incorporates synchronous rectification for enhanced efficiency

Offers features like enable, frequency control, power good signal, soft start, and tracking for smooth operation

Product Advantages

High efficiency and flexibility in managing power requirements

Dual outputs and 2-phase operation improve power distribution and thermal performance

Extensive adjustability in switching frequency allows optimization for efficiency or component size

Synchronous rectification feature enhances overall system efficiency

Comprehensive control features for improved system reliability and performance monitoring

Key Technical Parameters

Number of Outputs: 2

Output Phases: 2

Voltage Supply (Vcc/Vdd): 4V ~ 38V

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

Maximum Duty Cycle: 99.4%

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

Quality and Safety Features

Built to meet industry standards for reliability and safety

Operating temperature range ensures performance in various environments

Compatibility

Suited for surface mount technology (SMT) with its 28-SSOP package

Compatible with a broad range of power substrates and systems due to its versatile input voltage range and configurable output

Application Areas

Telecommunications systems

Networking equipment

Industrial systems and controls

Automotive power systems

Portable and battery-powered devices

Product Lifecycle

Status: Active

This product is not nearing discontinuation, with replacements and upgrades readily available to support long-term deployments.

Several Key Reasons to Choose This Product

Analog Devices' reputation for reliability and performance in power management solutions

Wide input voltage range and dual output phases offer flexibility for various applications

High efficiency due to synchronous rectification and optimized switching frequency

Comprehensive control and safety features for robust power management

Active product lifecycle status ensures ongoing support and availability