EMT3571 Datasheet | E-CMOS

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 pensation. The EMT3571 provides plete fault protection including input under voltage lockout, output short circuit protection, over current protection, and thermal shutdown. The switching frequency is internally set at 500k Hz. EMT3571N and EMT3571A have different operation modes: - EMT3571N is automatic PSM/PWM mode - EMT3571A is Forced PWM mode To improve the light load efficiency, EMT3571N has proprietary light load power saving mode (PSM) to minimize the switching loss by reducing the switching frequency. The EMT3571 is available in the SOT23_6L . Features - Input Voltage Range from 4.7V to 18V - Adjustable Output Voltage from 0.8V to 12V - Support 100% Duty Cycle Operation - 500k Hz 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 Protection - Thermal Shutdown Protection - Available in a Small SOT23_6L Package - Pb-Free Ro HS pliant Applications - Wireless and DSL Card - Portable/Handheld Device - STB, TV, Sound Bar, MP3 Player - Microprocessor and DSP Core Supply E-CMOS Corp. (.ecmos..tw) Page 1 of 16 1F21N-Rev.F001 18V 3A 500k Hz Synchronous Step-Down DC/DC Converter Typical Application Circuit Ordering Information Note: Y= Year, WW = Week, xx = Manufacture Control Code E-CMOS Corp. (.ecmos..tw) Page 2 of 16 1F21N-Rev.F001 18V 3A 500k Hz Synchronous Step-Down DC/DC Converter Pin Configuration Pin Description Absolute Maximum Rating (Reference to GND)...