LT3840EFE#PBF - Analog Devices Inc.

Manufacturer Part Number

LT3840EFE#PBF

Manufacturer

Analog Devices

Introduction

The LT3840EFE#PBF is a DC DC switching controller designed for power management applications, specifically to drive step-down (buck) converters.

Product Features and Performance

Capable of driving step-down converters in positive or negative output configurations

Supports a wide input voltage range from 2.5V up to 60V

Adjustable switching frequency from 50kHz to 1MHz

High maximum duty cycle of 99%

Incorporates synchronous rectification for improved efficiency

Features clock synchronization

Enhanced control features including enable, frequency control, power good, soft start, and tracking

Product Advantages

Flexible power management suitable for a variety of applications

High efficiency and reliability with synchronous rectifier and clock sync

Wide input voltage range caters to diverse power sources

High frequency adjustability allows for optimization of performance

Soft start function reduces inrush current impact

Key Technical Parameters

Output Type: Transistor Driver

Number of Outputs: 1

Output Phases: 1

Voltage Supply (Vcc/Vdd): 2.5V ~ 60V

Frequency Switching: 50kHz ~ 1MHz

Duty Cycle (Max): 99%

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

Quality and Safety Features

Operates reliably in a wide temperature range

Built-in safety controls including power good and soft start

Compatibility

Compatible with a variety of external components for diverse applications

Mounting Type: Surface Mount

Application Areas

Ideal for a wide range of electronics requiring efficient power management such as computers, communication equipment, and industrial machinery

Product Lifecycle

Currently active product status

No indication of nearing discontinuation; replacements or upgrades would be under the same base product number LT3840

Several Key Reasons to Choose This Product

Highly versatile with both positive or negative output configuration capability

Supports extremely wide range of input voltage and adjustable switching frequencies for tailored performance

Integrated synchronous rectifier and clock synchronization feature enhances overall efficiency

Robust control features providing extensive operational control and safety

Dependable operation across a wide temperature spectrum suitable for harsh environments