CHL8328-34CRT

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CHL8328-34CRT is a special purpose voltage regulator integrated circuit that offers wide voltage range and high accuracy to maintain a regulated output voltage. This IC is designed for step-down conversion applications. It offers high output current capability with low dropout voltage and excellent load and line transient capability. The combination of features makes the CHL8328-34CRT an ideal choice for a variety of applications.

The CHL8328-34CRT voltage regulator has a wide input voltage range of 1.15 to 14 V and output voltage range of 0.8 to 13.7 V. It is capable of supporting a maximum output current of 3 A with excellent current limit, thermal shutdown, and output voltage tolerance. The CHL8328-34CRT supports both a low dropout and a low quiescent current mode for power savings when operating at light loads. The CHL8328-34CRT also features automatic power-up voltage sequencing, providing an adjustable delay time and enabling smooth system start-up.

The CHL8328-34CRT voltage regulator provides an improved circuit topology to ensure high current delivery capability, with minimal voltage droop and excellent dynamics. Its combination of output current and extended supply range, make it suitable for use in a wide range of applications, including: Power Supply, Automotive, Telecommunications and Industrial applications.

The CHL8328-34CRT voltage regulator is built around a buck topology. The internal components consist of a P-channel MOSFET for the main switch and two low-saturation NPN transistors for the control circuitry, together with the additional circuits for providing protection, including current and temperature limit, and output voltage monitoring.

The control circuit reacts to the voltage on the output and adjusts the frequency of switching to maintain the desired voltage. The switching frequency is usually determined by the external components, consisting of an inductor, a capacitor and a resistor. The switched mode operation provides an efficient solution for achieving a regulated output voltage, and is suitable for applications requiring both high current and low voltage levels.

The CHL8328-34CRT operates with a wide input voltage range of 1.15 to 14 V, with output voltage of 0.8 to 13.7 V, and maximum output current of 3 A. The IC also features a current limit of 3.5 A, power-up sequencing delay, automatic overload protection, and thermal shutdown protection.

The output voltage accuracy is tightly controlled, with an accuracy of typically 0.2%, and a ripple voltage of less than 10mV. The extended supply range and tight output voltage accuracy make the CHL8328-34CRT ideal for applications requiring both high current and low voltage level, such as power supply, automotive, telecommunications and industrial applications.

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