LM2853MHX-1.2

Voltage Regulators - DC DC Switching Regulators Overview

The LM2853MHX-1.2 is a synchronous buck regulator manufactured by Texas Instruments, designed for high-efficiency power conversion in compact applications. It integrates a 3A output capability with a fixed switching frequency of 550 kHz to minimize external component size. The device operates within an input voltage range of 2.7V to 5.5V and provides a fixed 1.2V output. It utilizes a 14-pin HTSSOP package suitable for surface-mount assembly. The regulator supports operation across an extended temperature range from -40°C to +125°C, ensuring reliability in demanding environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for enhanced efficiency and reduced external component count
• Features fixed 550 kHz switching frequency to optimize inductor and capacitor sizing
• Includes comprehensive protection mechanisms such as thermal shutdown and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring efficient step-down regulation
• Battery-powered devices needing stable low-voltage power rails
• Embedded systems utilizing microcontrollers or digital signal processors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure that the ordering information matches the exact package type and temperature grade required for your design. Cross-reference the part number with the latest revision history to account for any manufacturing updates or material changes documented by Texas Instruments.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.2V output is required with up to 3A load current. Consider the 550 kHz switching frequency for balancing transient response and passive component size. Evaluate the thermal performance within the HTSSOP-14 package based on your PCB layout and ambient conditions. Confirm that the input voltage range aligns with your system's power supply characteristics.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2853 family of synchronous buck regulators from Texas Instruments. The family offers various output voltage options and current capabilities tailored for different power management needs. The LM2853 series is characterized by its integration of high-side and low-side MOSFETs, providing a compact solution for space-constrained designs compared to non-synchronous alternatives.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2853MHX-1.2/NOPB is a confirmed equivalent variant within the same product line.