The TPS40009DGQR is an integrated circuit (IC) component designed by Texas Instruments. It belongs to the TPS4000 family of synchronous buck controllers and operates as a voltage-mode, non-isolated DC-DC converter.
The TPS40009DGQR features a wide input voltage range of 4.5 V to 60 V, making it suitable for various applications. It incorporates a high-performance pulse-width modulation (PWM) controller to regulate the output voltage efficiently. With a flexible feedback compensation network, the IC ensures stable and precise voltage regulation even under dynamic load conditions.
Key features of the TPS40009DGQR include a built-in low dropout (LDO) voltage regulator that allows operation at lower supply voltages while maintaining the output voltage accuracy. This enables the IC to deliver reliable performance across a wide range of operating conditions and power requirements.
Another notable feature is the programmable soft-start function, which prevents excessive current flow during startup, reducing stress on components and enhancing system reliability. The integrated cycle-by-cycle current limit helps protect against overcurrent conditions, safeguarding the system from damage.
Additionally, the TPS40009DGQR offers a high level of integration, including various protection features. It incorporates thermal shutdown and overvoltage protection mechanisms that ensure safe operation under extreme temperature or voltage conditions.
The IC also provides a synchronization input pin, enabling it to synchronize with other converters in the system, reducing noise and potential interference
