Professional IC Distribution & Technical Solutions

The MP2451DT-LF-Z is a step-down (buck) switching regulator manufactured by Monolithic Power Systems (MPS). Below are its key specifications, descriptions, and features:

Specifications:

• Input Voltage Range: 4.5V to 55V
• Output Voltage Range: Adjustable from 0.8V to 24V
• Output Current: Up to 0.5A
• Switching Frequency: 500kHz (typical)
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to +125°C
• Package: SOT23-6

Descriptions:

• The MP2451DT-LF-Z is a high-efficiency, synchronous buck converter with integrated power MOSFETs.
• It is designed for applications requiring a compact, high-performance step-down solution.
• The device features fixed-frequency peak current-mode control for stable operation.
• Includes built-in protections such as over-current protection (OCP), thermal shutdown, and under-voltage lockout (UVLO).

Features:

• Wide Input Voltage Range (4.5V–55V) – Suitable for industrial, automotive, and battery-powered applications.
• Integrated Power MOSFETs – Simplifies design and reduces external component count.
• Fixed 500kHz Switching Frequency – Balances efficiency and component size.
• Adjustable Output Voltage (0.8V–24V) – Provides flexibility for various load requirements.
• Peak Current-Mode Control – Ensures fast transient response and stable operation.
• Protection Features:
• Over-Current Protection (OCP)
• Thermal Shutdown
• Under-Voltage Lockout (UVLO)
• Compact SOT23-6 Package – Ideal for space-constrained applications.

This regulator is commonly used in industrial, automotive, telecom, and consumer electronics where a high-efficiency, compact power solution is required.