LTC3850IUF#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LTC3850IUF#TRPBF

Manufacturer

Analog Devices

Introduction

High performance step-down switching regulator controller

Product Features and Performance

Dual output synchronous step-down controller

4V to 30V input voltage range

250kHz to 780kHz adjustable switching frequency

Maximum duty cycle of 97.2%

Current mode operation for excellent line and load transient response

Synchronous rectification for improved efficiency

Integrated soft-start function

Power good signal output for system monitoring

Product Advantages

High efficiency due to synchronous rectification

Stable operation with a variety of output capacitors

Low shutdown current for power savings

Dual outputs for multiple rails from a single controller

Key Technical Parameters

Number of Outputs: 2

Output Phases: 2

Switching Frequency: 250kHz to 780kHz

Voltage Supply (Vcc/Vdd): 4V to 30V

Output Type: Transistor Driver

Duty Cycle (Max): 97.2%

Topology: Buck

Function: Step-Down

Output Configuration: Positive

Quality and Safety Features

Overcurrent protection

Thermal shutdown for over-temperature protection

Under-voltage lockout (UVLO)

Compatibility

Compatible with various high current power MOSFETs

Surface Mount (28-WFQFN Exposed Pad)

Application Areas

Power supplies for microprocessors

Telecommunications and networking equipment

DC/DC converters for automotive applications

Industrial power systems

Product Lifecycle

Status: Active

Not nearing discontinuation

Availability of replacements or upgrades not specified

Several Key Reasons to Choose This Product

Efficient power conversion for multi-output systems

Adaptable to a wide range of input voltages and output configurations

Customizable switching frequency for system optimization

High duty cycle for low-dropout operations

Compact 28-QFN package suitable for space-constrained applications

Supported by Analog Devices’ comprehensive technical resources and support network