The TPS40091RHDR is an IC (Integrated Circuit) component manufactured by Texas Instruments and is part of their TPS4009x family of buck controllers. This device is designed to regulate the output voltage in DC-DC converter applications and offers several key features that make it versatile and efficient.
One of the main features of the TPS40091RHDR is its wide input voltage range, which spans from 4.5V to 42V. This capability allows it to be used in various applications that require different input voltage levels. Additionally, it can handle output currents up to 3.5A, providing sufficient power for most applications.
The TPS40091RHDR incorporates a voltage-mode control architecture, which ensures stable and accurate regulation of the output voltage. This control architecture, combined with a high switching frequency of up to 700kHz, allows for small external components like inductors and capacitors, reducing the overall size and cost of the system.
Another notable feature of the TPS40091RHDR is its adjustable soft-start time. This feature allows for controlled start-up, reducing inrush currents and potential stress on the power supply components. It also helps to prevent output voltage overshoot or undershoot during start-up.
Furthermore, the TPS40091RHDR provides various protection features to ensure safe and reliable operation
