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Product Attributes

1.

The TPS54560B is a 60V, 5A buck regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. The low ripple pulse jump mode reduces the unloaded supply current to 146µA. When the EN (enable) pin is pulled low, the shutdown supply current is reduced to 2µA.

The Undervoltage blocking is set internally to 4.3V but can be increased with the EN (enable) pin. The output voltage start-up ramp can be controlled internally to enable a controlled start-up process and eliminate overshoot.

A wide switching frequency range allows optimization of efficiency or external component size. The output current is a limited cycle-by-cycle current. Frequency foldback and thermal shutdown protect internal and external components under overload conditions.

The TPS54560B is available in an 8-pin thermally enhanced HSOIC PowerPAD package.

2.

DC-DC is the English abbreviation for direct current to direct current, so a DC-DC circuit is a circuit in which a certain DC power supply is transformed into a different voltage value. the basic circuits of a DC-DC converter are a step-up converter, a step-down converter, and a step-up/down converter. In the same circuit, there will be functions such as step-up reverse and step-down boost at the same time.

3.

DC-DC circuits are classified by function.

Boost converters: Circuits that convert low voltages to high voltages.

Buck converters: Circuits that convert high voltages to low voltages.

Inverters: Circuits that change the polarity of the voltage, there are two types of circuits: positive to negative and negative to positive.

4.

A step-down transformer is to refer to the input side of the higher voltage, converted to the output relatively low ideal voltage, so as to achieve the purpose of a step-down transformer. The step-down transformer is a very important piece of equipment in the transmission and transformation system, and its normal operation is not only related to its own safety, and the user’s reliable power supply, but also directly affects the stability of the power system. The configuration of the step-down transformer protection should meet in any case, can not burn the transformer, so that the accident expands, affecting the stability of the power system. Is the principle of electromagnetic induction, now single-phase double-winding transformer as an example to explain its basic working principle: when the primary side of the winding plus voltage, flowing current in the core will produce alternating flux this flux is called the main flux, the main flux will pass through, primary, a secondary winding, the winding will produce induction electromotive force, then if the secondary side access to the load, there will be current flow, generate electricity.