TPS54302DDCR Integrated Circuits (ICs)

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The TPS54302DDCR is a high-performance DC-DC switching regulator with integrated high and low side MOSFETs. It is designed to provide a highly efficient, low-cost, small footprint solution for a variety of consumer and industrial applications. The device is ideal for applications such as automotive power topology, consumer, communications and industrial equipment where low noise, low output ripple, current or voltage monitoring are required. It is available in a 3.3V and 5V version.

Application Fields

The TPS54302DDCR DC-DC switching regulator offers excellent flexibility, extending the selection of consumer and industrial applications. Its features and key benefits make it particularly suitable for automotive applications, consumer and industrial applications. Many of these applications include automotive battery regulation, motor control systems, lighting fixtures and other power switching solutions, microprocessor systems, power management circuits, cell phones, and high-brightness LED lighting.

Working Principle

The TPS54302DDCR DC-DC switching regulator works using its integrated high side and low side MOSFET transistors to provide a voltage regulated output. The two MOSFETs are operated as a voltage-controlled series regulator. When current boosting is necessary, the external current-sense amplifier is used to increase the gate voltage of the high-side MOSFET, allowing for additional current to be delivered to the output. The TPS54302DDCR also includes a synchronous rectifier, an ultra-low quiescent current regulator bias, and an optional output discharge circuit.

The TPS54302DDCR has an adjustable voltage-mode control with feedback pre-conditioning, providing maximum accuracy. It is designed to operate with a wide input voltage range of 3.3V to 15V. This allows the regulator to be implemented in many power topology solutions. The TPS54302DDCR also offers fast transient capability and very low output ripple for a wide variety of load conditions.

The TPS54302DDCR provides extensive protection features including over temperature protection, output current limitation, and over voltage and over power protection. The TPS54302DDCR also offers an advanced soft start technology that is designed to reduce the in-rush current during start-up, thus minimizing system power supply stress. Additionally, the TPS54302DDCR is able to supply up to 4 A of load current.

The TPS54302DDCR has a wide array of features, providing designers with attractive price versus performance ratios. The combination of its high integration, robust protection features, fast transient response and adjustable voltage feedback circuitry makes the TPS54302DDCR ideal for a variety of battery-powered and non-battery powered applications.

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