MEE1S1512DC

DC-DC converters allow for the voltage in electrical circuits to be converted from one level to another, and are integral components in applications ranging from power supplies to motor control systems. The MEE1S1512DC is a DC-DC converter manufactured by Murata Electronics and available from a range of distributors. This article explains the application field and working principle of the MEE1S1512DC.

Application Field

The MEE1S1512DC is designed to convert an input voltage of up to 15VDC to an adjustable output voltage of up to 12VDC. This DC-DC converter has a maximum output current of 1.2A, a wide operating temperature range of -40°C to +85°C, an efficiency rating of 96%, and a switching frequency of 300kHz. As such, the MEE1S1512DC is suitable for a wide range of applications, such as powering LED lighting, running motors, or providing adjustable power to circuit boards.

Working Principle

The MEE1S1512DC is a buck converter, meaning that it reduces the input voltage to create a lower output voltage. This is achieved by combining a power switch, a control circuit, and an inductor. When the power switch is off, current passes through the inductor, resulting in a steady increase in magnetic energy until the control circuit turns the switch on. This interrupts current flow, causing the stored energy in the inductor to be released to the output. The control circuit is designed to switch the power on and off in order to achieve the desired output voltage, and is also responsible for ensuring the switch operates safely.

The MEE1S1512DC includes multiple safety and protection features in order to ensure the device operates correctly. These include thermal shutdown, over-voltage shutdown, under-voltage lockout, and over-current protection. The control circuit is also able to regulate both the switching frequency and the Duty Cycle of the power switch.