TPS62237DRYT

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Texas Instrument\'s TPS62237DRYT is a synchronous step-down converter consisting of a 42V N-Channel power FET and a fixed frequency current mode control for operating applications requiring ultra-low quiescent current. This switching regulator is designed for a wide range of applications and ambient temperatures, featuring robust startup capability and low output ripple peaks. With the adapter size being only a fraction of those used in conventional buck converters and minimal inductor size, this high-performance switch-mode power converter is ideal for space constraint applications.

The application fields for the TPS62237DRYT includes battery-powered equipment, portable/wearable instruments, industrial applications, and computer/microprocessor supplies. Additionally, the flexibility of adjustable switching frequency of the device allows cost-effective design of power supplies that can meet tighter noise and EMI requirements.

The TPS+22737DRYT works by regulating an input voltage to a lower output voltage. This power converter combines advanced features and technologies resulting in an optimized converter with excellent efficiency, fast dynamic response, and improved EMI performance. The device can sustain high source-side capacitive loads, making it well suited for multiple high capacitance loads. It also has a high operating temperature range, setting it apart from other synchronous switching regulator.

The main purpose of having such a synchronous step-down converter is to achieve high efficiency due to the active MOSFET and low quiescent current to reduce the total solution cost, conserve board space, and save power. This helps to reduce the heat dissipation, allowing higher power densities using smaller boards and minimal inductor size. In order to reduce the size of a power supply, the device must be able to reduce the total inductance and capacitance, while reducing the power losses in the power supply.

Using this power converter, the user can greatly save on board space as it features much smaller footprint as compared to conventional buck converters. On top of that, this switching regulator not only provides superior power efficiency, but also features exceptional noise performance in order to reduce the noise peaks that affect the EMI performance, ensuring reliable system operation.

The TPS62237DRYT switching regulator works by transforming a higher voltage, with the help of an inductor, into a regulated lower output voltage. The device integrates a main switch-mode power converter with 42V N-Channel power FET to achieve high efficiency and low quiescent current. It is designed with a fixed frequency current mode control, allowing flexible switching frequency for tight timing and noise requirements. On top of that, an internal soft start circuit helps to reduce the in-rush current and transient overshoot.

The high level of performance and feature set offered by the TPS62237DRYT make it suitable for a wide variety of applications that require high performance in a small space including notebook computers and PDAs, digital cameras and camcorders, consumer electronics, and many industrial applications. Therefore, this power converter is highly sought after due to its performance, robustness, and current-mode operation that helps to reduce external component count.

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