LTC7800IUDC#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC7800IUDC#PBF

Manufacturer

Analog Devices

Introduction

High-performance step-down switching regulator controller

Product Features and Performance

Drives an external MOSFET

Wide input voltage range: 4V to 60V

Switching frequency adjustable: 320kHz to 2.25MHz

High duty cycle for low dropout operation: up to 98%

Integrated soft start functionality

Power good signal output

Current limit function for protection

Product Advantages

Capable of high efficiency conversion

Reduced radiated noise due to high switching frequency options

Stable operation with ceramic output capacitors

Thermal performance enhanced by QFN package

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Number of Outputs: 1

Output Phases: 1

Frequency - Switching: 320kHz ~ 2.25MHz

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

Duty Cycle (Max): 98%

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

Quality and Safety Features

Built-in current limit protection

Thermal shutdown protection

Overvoltage protection capability

Robustness over the wide operating temperature range

Compatibility

Compatible with various MOSFETs

Can be used with a range of inductor values and types

Application Areas

Telecommunication systems

Data communication equipment

Automotive electronics

Industrial control systems

Distributed Power Systems

Product Lifecycle

Status: Active

Not nearing discontinuation

Availability of replacements or upgrades

Several Key Reasons to Choose This Product

Ability to handle a wide range of input voltages, providing versatility across different applications

Highly flexible switching frequency options allow optimization for efficiency or component size

High maximum duty cycle enables low dropout operation critical in high availability systems

Integrated features like soft start and power good signal simplify complexity in power supply design

The robust thermal package ensures reliable performance under varying conditions