TC1263-5.0VAT

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The TC1263-5.0VAT is a voltage regulator designed for linear regulation and is categorized as a PMIC (Power Management Integrated Circuit). This voltage regulator is designed to provide linear regulation of a 5.0V output voltage with individual enable/disable capabilities. It has an input voltage range of 4.75V to 25V and is capable of sourcing or sinking up to 1.0A of current.

Features and Applications

The TC1263-5.0VAT has a wide range of features and applications. These include a low quiescent current of only 170μA, low dropout and low noise operation, over-current protection, ESD protection, and a soft-start capability. These features make the TC1263-5.0VAT an ideal choice for low-noise, low-power applications such as cell phones, battery-powered devices, and audio systems. It can be used in conjunction with DC/DC and AC/DC converters to provide an additional level of stability and isolation when required.

Working Principle

The TC1263-5.0VAT uses an internal error amplifier to regulate an external resistor divider network creating an output voltage as desired. This feedback mechanism ensures that the output voltage remains constant under varying load conditions. The device also has a “Enable/Disable” pin that can be used to set the output voltage to low (R OFF) or high (R ON). This pin can be used in conjunction with logic signals from other circuits or can be tied to a constant voltage (V CC). The output voltage will be disabled when the Enable/Disable pin is tied to a constant voltage.

The TC1263-5.0VAT also has a maximum input voltage (UVLO) and a minimum output voltage (OVLO). The UVLO is active when the input voltage is below 4.75V and the OVLO is active when the output voltage is below 5.0V. These features help to ensure the correct operation of the regulator in varying conditions.

Specifications

The TC1263-5.0VAT has the following specifications and parameters:

• Input Voltage Range: 4.75V to 25V
• Output Voltage Range: 0V to 5.0V
• Output Current Limit: 1.0A
• Low Dropout Voltage: 1.2V at 1.0A
• Quiescent Current: 170μA
• Stability: Under stable load conditions
• Enable/Disable Pin: 1 (active low)

Conclusion

The TC1263-5.0VAT is a linear regulator PMIC designed to provide a 5.0V output voltage with individual enable/disable capabilities. Its wide range of features make it ideal for low-power, low-noise applications while its robust protection and stability parameters provide the flexibility necessary for many applications. Furthermore, the device is rated to operate over an extended temperature range and has a wide input voltage range.

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