S-812C20BMC-C4AT2U

S-812C20BMC-C4AT2U Application Field and Working Principle

The S-812C20BMC-C4AT2U is a step-down switching regulator used for a variety of applications. This particular model offers up to 8A output current and is used in systems that require high efficiency, low power loss, and noise suppression. By using step-down technology, the S-812C20BMC-C4AT2U can reduce output voltages from input voltages that are relatively high.

Features

• Input voltage range: 2.6V to 12V
• Output voltage range: 0.795V to 5.5V
• Output current: up to 8A
• Power savings mode allows for lower power draw
• High efficiency: up to 90%
• Low output noise
• Small size: SOT-23-5 package

Application Field

The S-812C20BMC-C4AT2U is suitable for applications that require high efficiency and low power loss. Some popular applications are mobile phones, consumer electronic devices such as cameras, LCD monitors and other portable devices, consumer and industrial automation systems, automotive applications and IoT products.

Working Principle

The step-down switching regulator works by switching a power transistor on and off at a very high frequency to control the output voltage. For example, the output voltage is regulated by switching on a power transistor and drawing current from the input voltage source. The transistor is then switched off, allowing the current through the transformer to decay, before the process is repeated. The frequency of the switching determines the output voltage. A feedback loop is used to keep the output voltage within a given range.

The S-812C20BMC-C4AT2U also has a power saving function, which allows for a lower power draw for a given output current. This is achieved by decreasing the frequency of the switchings and the length of the power transistor’s activation time.

Conclusion

The S-812C20BMC-C4AT2U is a step-down switching regulator suitable for a wide range of applications due to its high efficiency, low power loss, and noise suppression. It offers an input voltage range of 2.6V to 12V, an output voltage range of 0.795V to 5.5V, and an output current of up to 8A.