CHL8228G-00CRT

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CHL8228G-00CRT is a low-current, low-voltage, step-down DC-DC converter, making it a popular choice for a wide range of switched-mode power supply (SMPS) applications. It is an ideal device for those applications where a power supply with a low-power draw, high efficiency, and low standby power is required. It offers a wide input voltage range from 2.4 to 25V and can be designed to deliver output voltages as low as 3.3V. The device is also capable of providing continuous current up to 1.5A and peak current up to 4A.

Working Principle

The CHL8228G-00CRT uses a pulsed-width modulation (PWM) control scheme for regulating output voltage. It features an internal oscillator generating high frequency square waves which are used to drive the output stages. The PWM controller uses an outer feedback loop to keep the output voltage within a certain tolerance level. This feedback loop monitors the output voltage using an integrated amplifier and an error amplifier to compare the actual output voltage against the set target voltage. When the difference between the two is larger than the tolerance level, the PWM control loop adjusts the duty cycle of the PWM signal, resulting in a change of the switching frequency, thus adjusting the output voltage. The cycle-by-cycle current limit feature is also enabled to prevent over-current conditions. The device also includes a low-current shutdown mode.

Application Field

The CHL8228G-00CRT is widely used for applications that require a high power efficiency, low power consumption, and low standby power. It is particularly suitable for low-current and low-voltage DC-DC conversion, making it suitable for the power supply design of power supply systems for notebook computers, cell phones, chargers, and tablet PCs. It can also be used in a variety of other applications such as automotive power supply, industrial control, and embedded systems.

The CHL8228G-00CRT can be used as a step-down DC-DC converter in applications where a low-power draw, high efficiency, low standby power and small form-factor are of concern. It is a good choice for systems that require a high power efficiency due to its precision voltage regulation and high transient response. Further, its low-power draw, high efficiency, and low standby power make it suitable for a wide range of applications. In addition, its wide input voltage range and small form-factor further add to its appeal.

The CHL8228G-00CRT is a versatile device that can be used for a variety of applications such as automotive systems, cell phone chargers, automotive infotainment systems, and notebook computers. Furthermore, its step-down converter also makes it suitable for industrial control applications, switching power supply systems, and automotive applications. Its temperature compensation feature ensures that the output voltage stays within a certain relative tolerance even in extreme temperature conditions. With its wide input voltage range and small size, it is an ideal choice for applications that require a high power efficiency, low power draw, and low standby power.

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