LM5145RGYR - Texas Instruments

Manufacturer Part Number

LM5145RGYR

Manufacturer

Texas Instruments

Introduction

The LM5145RGYR is a component in Texas Instruments' range of Power Management Integrated Circuits (PMICs), specifically designed for DC DC Switching Controllers functioning as step-down (buck) converters.

Product Features and Performance

Enables step-down conversion with transistor driver output.

Supports a positive output configuration with buck topology.

Operates across a wide input voltage range of 6V to 75V.

Offers adjustable switching frequency from 100kHz to 1MHz.

Capable of reaching a maximum duty cycle of 100%.

Incorporates synchronous rectification for improved efficiency.

Features clock synchronization to harmonize with other system components.

Provides control features including enable, frequency control, power good indicator, and soft start for smooth operation.

Product Advantages

Wide input voltage range allows usage in various applications.

High-frequency operation capability reduces the size of passive components.

100% duty cycle capability for low-dropout operation.

Synchronous rectification enhances efficiency.

Integration of control features simplifies system design and enhances functionality.

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Down

Voltage Supply (Vcc/Vdd): 6V ~ 75V

Frequency Switching: 100kHz ~ 1MHz

Duty Cycle (Max): 100%

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

Quality and Safety Features

Operates reliably within a broad temperature range from -40°C to 125°C.

Constructed in a 20-VFQFN Exposed Pad package for enhanced thermal performance.

Compatibility

Surface Mount, Wettable Flank mounting type for compatibility with standardized assembly processes.

Application Areas

Ideal for use in industrial, automotive, telecommunications, and consumer electronics where efficient power conversion is critical.

Product Lifecycle

Currently in an Active state, not nearing discontinuation.

Availability of replacements or upgrades can be easily addressed through Texas Instruments' extensive line of power management products.

Several Key Reasons to Choose This Product

High integration reduces the need for external components, minimizing board space.

Flexible power input range accommodates a wide array of supply voltages.

Enhanced efficiency and performance due to synchronous rectification and high switching frequency.

Comprehensive control features offer customizable performance and protective measures.

Support from a leading manufacturer ensures long-term reliability and availability.