EMT3571 - 18V 3A 500kHz Synchronous Step-Down DC/DC Converter

Datasheet Summary

Description

The EMT3571 is a high efficiency, 3A current mode synchronous step-down DC/DC converter with a wide input voltage range from 4.7V to 18V.

The device integrates high side and low side MOSFETs to achieve high efficiency conversion.

Features

Input Voltage Range from 4.7V to 18V.
Adjustable Output Voltage from 0.8V to 12V.
Support 100% Duty Cycle Operation.
500kHz Switching Frequency.
Built-in 110mΩ/60mΩ Power Switch.
3A Continuous Output Current.
High Efficiency up to 95%.
Internal 1msec Soft-Start.
Peak Current Mode Operation.
Over-temperature Protection.
Input Under Voltage Lockout (UVLO).
Cycle-by-Cycle Current Limit Protection.
Over-Load and Short Circuit Protecti.

E-CMOS

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Datasheet Details

Part number	EMT3571
Manufacturer	E-CMOS
File Size	1.47 MB
Description	18V 3A 500kHz Synchronous Step-Down DC/DC Converter
Datasheet	EMT3571 Datasheet
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18V 3A 500kHz Synchronous Step-Down DC/DC Converter EMT3571 General Description The EMT3571 is a high efficiency, 3A current mode synchronous step-down DC/DC converter with a wide input voltage range from 4.7V to 18V. The device integrates high side and low side MOSFETs to achieve high efficiency conversion. The current mode architecture supports fast transient response and internal compensation. The EMT3571 provides complete fault protection including input under voltage lockout, output short circuit protection, over current protection, and thermal shutdown. The switching frequency is internally set at 500kHz.

Published: Dec 6, 2025 |