TPS57140MDRCREP Application Field and Working Principle

The TPS57140MDRCREP is a synchronous, monolithic, high-frequency buck converter from Texas Instruments. It is a feature-rich device that is well-suited for use in portable, power-sensitive applications. It operates from an input voltage of up to 10V and delivers up to 10A of continuous output current. The TPS57140MDRCREP is ideal for applications such as notebook computers and other portable systems that require high power efficiency.

The TPS57140MDRCREP is a DC-DC switching regulator capable of delivering high efficiency, low output noise, and wide operating temperature range. It features a wide input voltage range, adjustable buck converter output voltage, and low quiescent current operation. The onboard controller is a digital pulse-width-modulated (PWM) control circuit used to drive the external power MOSFETs. The digital PWM control scheme simplifies the design by providing precise voltage regulation without the need for any external components.

The TPS57140MDRCREP operates over a wide input voltage range of 2.5V to 10V, allowing it to be used in both high-input and low-input voltage applications. The outputs are adjustable from 0.8V to 5.5V, making it suitable for use with a variety of load types. It has a high efficiency at light load current, allowing it to maintain a low quiescent current for better power savings. In addition, the TPS57140MDRCREP has a very low output noise, which makes it suitable for applications that require low noise operation.

In order to ensure an accurate output voltage regulation, the TPS57140MDRCREP features integrated power-good circuitry. This circuitry monitors the output voltage and sends an active-high power-good signal to the system when the output voltage is within a preset specified range. This signal can be used to gate power-down circuitry when the output voltage is out of range.

The TPS57140MDRCREP features two different over-current protection modes. The first is a cycle-by-cycle current limit, which limits the current at each switching cycle. The second is a hiccup current limit mode that cycles the output on and off until the current surges have been minimized. This ensures that the device does not suffer from long-term thermal stress.

The TPS57140MDRCREP is a highly integrated power supply solution that is suitable for a variety of applications. It provides an output voltage adjustable from 0.8V to 5.5V, high switching frequency, low quiescent current operation, and integrated power-good circuitry. The TPS57140MDRCREP is an ideal choice for notebook computers, portable systems, and other power-sensitive applications.