MT5033

M3TEK Preliminary Datasheet MT5033 800kHz Synchronous Step-up Converter with 6A Switches DESCRIPTION The MT5033 devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-polymer battery. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 2.5A at 5V with a supply voltage down to 3V. The maximum peak current in the step-up switch is limited to a value of 6A. The MT5033 operates at 800kHz switching frequency and enters pulse-skip-mode (PSM) operation at light load currents to maintain high efficiency over the entire load current range. During shutdown, the load is completely disconnected from the battery. FEATURES Synchronous Step-up Converter with 2.5A Output Current From 3V Input Wide VIN Range From 2.9V to 5.5V Input Under-voltage Lockout Protection Fixed and Adjustable Output Voltage Built-in Output Over-voltage Protection Light-Load Pulse Skip Mode Load Disconnect During Shutdown Output Short Circuit Protection Thermal Shutdown Protection Available in a SOP8_EP Packages APPLICATIONS Power Bank USB Charging Port (5V) DC/DC Micro Modules 3V to 5V Input L1 1.5uH C1 10uF SW VIN EN GND MT5033 VOUT R3 FB R4 C2 C3 10uF 10uF 5V output up to 2.5A PGND Figure 1. MT5033 Typical Application Circuit Rev. 0.1 www.m3tekic.com M3tekic Confidential 1 M3TEK ...