CHL8325A-61CRT

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The CHL8325A-61CRT is a member of the family of low-cost, multicurrent buck controllers designed for the power management of multi-cell Li-Ion and Li-Ion Polymer battery powered devices.

These devices use a combination of direct control of the enable pin to set the operation mode, as well as an integrated PWM/PFM mode. The load current is current limited, and a temperature-level dependent peak current limit thereby decreasing temperature rise. The devices also offer a very low shutdown current.

The CHL8325A-61CRT is ideal for applications such as battery powered wireless communication, portable computers, PDAs, portable storage, backup power and other applications that require dual output solutions.

Application Field

The CHL8325A-61CRT is a highly efficient buck switching regulator intended for use as the power supply for cellular phones, digital cameras, gaming stations, and other consumer equipment. It offers small form factor and high efficiency, with high-power 95V N-channel MOSFET solutions available for surface-mount applications. The device is suitable for a wide input voltage range and supports up to three output sources.

It is suitable for applications where the load current and output voltages have to be closely controlled and regulated. This device also supports output current to one or two level disconnected loads, making it ideal for applications in which multiple loads have to be controlled from a single power supply.

Working Principle

The CHL8325A-61CRT works on the principle of multi-step voltage regulation. It uses an integrated PWM/PFM mode to control the load current and output voltages. This ensures high efficiency with minimal energy consumption in a wide input range. The device supports up to three output sources which can be regulated to one or two level disconnected loads.

The device is also equipped with an enable pin to set the operating modes. This pin is used to enable or disable the device, and can be used to set the power-on or power-off sequence. The CHL8325A-61CRT also has an integrated temperature-level dependent peak current limit, so that the device can be operated with minimized temperature rise and extended lifetime.

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