Product Overview: LM2574M-3.3

The LM2574M-3.3 from Texas Instruments is a versatile and efficient step-down voltage regulator that provides all the active functions required for a step-down (buck) switching regulator. It is designed to deliver a fixed output voltage of 3.3V with a capability to drive a 0.5A load with excellent line and load regulation.

Key Features

• Output Voltage: Fixed 3.3V output to power various low-voltage electronics.
• Output Current: Capable of delivering 0.5A, suitable for moderate power applications.
• High Efficiency: Simplified circuit design with a high efficiency of up to 52%, reducing power loss and heat.
• Voltage Regulation: Maintains a steady voltage output despite variations in input voltage and load conditions.
• Thermal Shutdown: In-built thermal shutdown feature to protect the device under high-temperature conditions.
• Frequency of Operation: 52 kHz fixed frequency internal oscillator.
• Package: Available in a compact SOP-14 surface-mount package, ideal for space-constrained applications.

Applications

The LM2574M-3.3 is suitable for a wide range of applications, including but not limited to:

• Simple high-efficiency step-down (buck) regulators.
• Efficient pre-regulator for linear regulators.
• On-card switching regulators to replace linear regulators.
• Positive to negative converter (Buck-Boost).

Quality and Reliability

As a product of Texas Instruments, the LM2574M-3.3 is manufactured to high standards of quality and reliability. It is designed to meet the rigorous demands of both commercial and industrial applications, ensuring performance and durability.

Ordering Information

For sample requests, datasheets, and further information, customers can visit the Texas Instruments website or contact their local distributor. The part number LM2574M-3.3 is used to specify the fixed 3.3V output version of this regulator series.