LM3281YFQR - Texas Instruments

Manufacturer Part Number

LM3281YFQR

Manufacturer

Texas Instruments

Introduction

The LM3281YFQR is a high-efficiency, step-down DC-DC converter designed for power management applications.

Product Features and Performance

Buck regulator topology

Fixed output voltage of 3.3V

6MHz switching frequency for low-noise operation

High-current output capability of up to 1.2A

Surface mount, compact 6-WFBGA, DSBGA package

Built-in synchronous rectifier for improved efficiency

Wide input voltage range from 3V to 5.5V

Product Advantages

Improved battery life due to high efficiency

Small package size suitable for space-constrained applications

Low output voltage ripple

Fast transient response

No need for external Schottky diode due to synchronous rectification

Key Technical Parameters

Voltage - Input (Min): 3V

Voltage - Input (Max): 5.5V

Voltage - Output (Min/Fixed): 3.3V

Current - Output: 1.2A

Frequency - Switching: 6MHz

Operating Temperature: -30°C ~ 90°C (TA)

Quality and Safety Features

High-reliability design

Temperature range designed for harsh environments

Over-temperature protection

Over-current protection

Compatibility

Compatible with a wide range of microcontrollers and processors

Suitable for standard surface mount technology (SMT) processes

Application Areas

Consumer Electronics

Portable Devices

Networking Equipment

Battery-Powered Applications

Product Lifecycle

Active product status ensures ongoing production and support

Not reported as nearing discontinuation, with available replacements or upgrades

Several Key Reasons to Choose This Product

Efficient power conversion reduces energy waste

Compact form factor ideal for modern electronic devices

Ti's reputable manufacturing quality ensures product reliability

High switching frequency enables smaller passive components

Good thermal performance accommodates variable load conditions