NCV4276CDSADJR4G

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

NCV4276CDSADJR4G is a device from the Voltage Regulators - Linear category of Power Management ICs (PMIC). It is a step-down low dropout (LDO) regulator and features good load transient performance, output current monitoring, thermal and current limit protection, as well as fast dynamic response.

The device is specially designed for providing dual supply voltage for microprocessors and digital logic ICs such as undervoltage lockout (UVLO), integrated system power-on reset (PSON), programmable brownout reset (BOR) and others. It offers a wide adjustable output voltage range, low dropout voltage and low quiescent current.

In terms of application field, NCV4276CDSADJR4G is suitable for applications in advanced telecom and data communication systems, computer and peripheral circuitry, wireless communications, set-top boxes, automotive infotainment systems and general industrial control systems.

NCV4276CDSADJR4G includes a dual stage regulating architecture, which consists of an input stage with a low dropout regulator (LDO) followed by an adjustable voltage regulator (AVR). The input stage consists of an internal error amplifier, a P-channel MOSFET and enables transient protection to be enabled if necessary. The reference voltage is determined by an external resistive voltage divider which is connected to the OUT voltage of the device in order to achieve the required output voltage. The input regulated voltage is then supplied to the AVR stage, which regulates the output voltage to whatever is set by the external feedback network.

The output voltage regulation of NCV4276CDSADJR4G is accomplished by a series of voltage comparators in the AVR stage. An error-amplifier in the AVR stage compares the actual vs. desired output voltage and adjusts the voltage reference to the PWM controller accordingly. The PWM controller then adjusts the duty cycle of the output switch. The AVR also includes a power device control logic for starting and stopping the output switch.

Aside from low voltage sense, thermal shutdown and overcurrent protection, the device also features current monitoring. The current monitoring feature enables the output current to be monitored, providing an accurate indication of the load current that the device is attempting to deliver. The monitoring load current can be used for diagnostic purposes and to ensure that the device is not overloaded.

In summary, NCV4276CDSADJR4G is a low dropout (LDO) regulator device specially designed for providing dual supply voltage for microprocessors and digital logic ICs. Due to its wide adjustable output voltage range, low dropout voltage and low quiescent current, it is suitable for applications in advanced telecom and data communication systems, computer and peripheral circuitry, wireless communications, set-top boxes, automotive infotainment systems and general industrial control systems.

The specific data is subject to PDF, and the above content is for reference