LTC3789EUFD#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC3789EUFD#PBF

Manufacturer

Analog Devices

Introduction

The LTC3789EUFD#PBF is a versatile buck-boost switching regulator controller that maintains output voltage regulation with inputs above, below, or equal to the output.

Product Features and Performance

Supports step-up/step-down functionality

Can drive transistor outputs

Positive output configuration

Buck-Boost topology for efficient power conversion

2 outputs with single-phase operation

Wide input voltage range of 4V to 38V

Switching frequency adjustable from 200kHz to 640kHz

Supports up to a 90% duty cycle

Integrated synchronous rectifier for improved efficiency

Features include current limit, enable, frequency control, power good signal, and soft start

Designed to operate in temperatures ranging from -40°C to 125°C

Product Advantages

Flexibility in maintaining output voltage over varying input conditions

High efficiency due to synchronous rectification

Customizable switching frequency for tailored performance

Built-in protection and control features enhance system reliability

Key Technical Parameters

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

Switching Frequency: 200kHz ~ 640kHz

Duty Cycle (Max): 90%

Operating Temp: -40°C ~ 125°C

Package: 28-WFQFN Exposed Pad

Quality and Safety Features

Includes a current limit feature for overcurrent protection

Soft start feature minimizes inrush current during startup

Compatibility

The compact 28-QFN package is suitable for high-density PCB layouts

Wide input voltage range ensures compatibility with various supply voltages

Application Areas

Automotive systems

Industrial power supplies

Portable electronics

Renewable energy systems

Telecommunication equipment

Product Lifecycle

Product Status: Active

This product is not nearing discontinuation, and replacements or upgrades should be available

Several Key Reasons to Choose This Product

Flexible power solution that accommodates a broad range of input voltages

High-efficiency design optimizes power usage and reduces heat generation

Versatile features for enhanced system reliability and performance customization

Suitable for a wide array of applications due to its robust operating temperature range and compact form factor

Active product status ensures ongoing support and availability