LTC1649CS - Analog Devices Inc.

Manufacturer Part Number

LTC1649CS

Manufacturer

Analog Devices

Introduction

The LTC1649CS is a step-down switching controller designed for power management applications.

Product Features and Performance

Integrated transistor driver for improved performance

Step-down (buck) regulation topology

Capable of driving a single output

High efficiency with 93% maximum duty cycle

Supports synchronous rectification for better efficiency

Features such as current limit, enable control, and soft start for enhanced operation

Designed for a wide range of supply voltages from 2.7V to 5V

Switching frequency fixed at 200kHz

Positive output configuration

Product Advantages

High integration for reduced system complexity

Efficient power conversion for battery-powered devices

Compact 16-SOIC package saves space on PCBs

Built-in features for reliable and stable operation

Key Technical Parameters

Number of Outputs: 1

Output Phases: 1

Voltage – Supply (Vcc/Vdd): 2.7V to 5V

Frequency Switching: 200kHz

Duty Cycle (Max): 93%

Synchronous Rectifier: Yes

Operating Temperature Range: 0°C to 70°C

Quality and Safety Features

Current limit protection

Thermal shutdown with hysteresis

Built-in soft start to reduce inrush current

Compatibility

Compatible with a variety of external components to build adjustable output voltage applications

Suits a broad range of power supply applications due to its flexibility in supply voltage and external components

Application Areas

Power supplies for telecommunications

Portable electronic devices

Computer peripherals

Distributed power systems

Product Lifecycle

Product Status: Active

Not nearing discontinuation as of the last update

Potential future upgrades with cross-compatible components may be available

Several Key Reasons to Choose This Product

Highly efficient energy conversion which is essential for battery-operated devices

Synchronous rectification capability for reduced power loss

Easy implementation in various application designs due to its wide supply voltage range and support for various external components

Reliable operation facilitated by comprehensive control features and protections

Standard package and surface mount technology for PCB design flexibility and space-saving