LM2647MTCX - Texas Instruments

Manufacturer Part Number

LM2647MTCX

Manufacturer

Texas Instruments

Introduction

Power management integrated circuit for DC-DC switching control

Product Features and Performance

Dual output step-down switching controller

Supports synchronous rectification for improved efficiency

Adjustable frequency from 200kHz to 500kHz

Soft start feature to reduce inrush current

Current limit and power good indicator for reliable operation

Thermal shutdown for over-temperature protection

Product Advantages

High integration reduces external components and board space

Wide input voltage range suitable for varied applications

High duty cycle for wide output voltage regulation range

Robust thermal performance for demanding environments

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Number of Outputs: 2

Output Phases: 2

Voltage - Supply (Vcc/Vdd): 5.5V ~ 28V

Duty Cycle (Max): 75%

Operating Temperature: -5°C ~ 125°C (TJ)

Quality and Safety Features

Over-current protection

Built-in thermal shutdown

Under-voltage lockout

Compatibility

Surface mount compatible with 28-TSSOP package

Application Areas

Telecommunications

Networking systems

Distributed power architectures

Industrial platforms

Product Lifecycle

Obsolete

Potential lack of direct replacements or upgrades

Several Key Reasons to Choose This Product

Efficient power management for multi-output systems

Programmable frequency allows for optimization of inductor size and efficiency

High temperature operation suitable for industrial applications

Inclusion of features such as soft start, current limiting enhances system reliability

Surface mount form factor for modern PCB design compatibility