MP1494SGJ-Z

Voltage Regulators - DC DC Switching Regulators Overview

The MP1494SGJ-Z is a synchronous step-down converter from Monolithic Power Systems, housed in an 8-pin TSOT-23 package. It supports an input voltage range of 4.5 V to 16 V and delivers up to 2 A of continuous output current. The device operates at a fixed switching frequency of 500 kHz, with external clock synchronization capability spanning 200 kHz to 2 MHz. Output voltage is adjustable from 800 mV to 15.2 V. Key electrical parameters include a maximum static current of 500 uA and a load regulation of 3%. The component functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates low on-resistance power MOSFETs for high-efficiency synchronous rectification across the load range.
• Features Advanced Asynchronous Modulation (AAM) to optimize efficiency during light-load conditions.
• Provides comprehensive protection mechanisms including hiccup-mode overcurrent protection and thermal shutdown.
• Utilizes current-mode control architecture to ensure rapid transient response and stable loop performance.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring compact power solutions
• Battery-powered devices utilizing wide input voltage ranges
• Embedded systems needing efficient DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SGJ-Z' against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Confirm that the component remains suitable for new designs, as MPS may recommend alternative parts for updated projects. Ensure ordering documentation matches the exact part number to avoid substitution errors in assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when space constraints require an 8-pin TSOT-23 footprint alongside a 2 A output capability. It is appropriate for applications demanding a 500 kHz switching frequency to minimize passive component size. Consider the AAM feature if light-load efficiency is critical. Verify that the 16 V maximum input voltage aligns with the system's supply rails.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the MP1494S series of high-efficiency synchronous buck converters. It is designed to replace standard asynchronous rectifiers by integrating both high-side and low-side power switches. The series emphasizes minimal external component count while maintaining robust performance in portable and embedded power architectures.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

MPS indicates that MP1494 variants are not recommended for new designs. Review the manufacturer's official documentation for specific alternative part numbers intended to replace this series in new product developments.

Voltage Regulators - DC DC Switching Regulators FAQ

Does the MP1494SGJ-Z support external clock synchronization?

Yes, the device allows external clock synchronization with a frequency range of 200 kHz to 2 MHz.

What protection features are included in the MP1494SGJ-Z?

The IC includes hiccup-mode overcurrent protection (OCP) and thermal shutdown protection to safeguard the device under fault conditions.