Home > Brand > TI > TPS54331DR TI DC / DC converter

The TPS54331DR device is a 28-V, 3A Asynchronous step-down converter with an integrated low-level RDS (on) high-end MOSFET. To

increase the pulse jump efficiency of light load, the Eco-mode function is automatically activated. In addition, the 1 A turn-off power supply

current allows the device to be used for battery-powered applications. Current mode control with internal slope compensation simplifies the

external compensation calculation and reduces the number of elements; while allowing the use of ceramic output capacitors. The resistance

divider programmatically inputs the lag of the Undervoltage lock. Overvoltage transient protection circuits can limit voltage overshoot under

start-up and transient conditions. Periodic current restriction scheme, frequency return, and heat off can protect devices and loads in overload situations.

The TPS54331DR device uses the dual-column patch 8-pin SOIC package and the 8-pin SO PowerPAD package, after internal

optimization, can improve the heat dissipation performance. The device provides an output current of 3A at an input voltage of 3.5V to 28V, as

low as an adjustable output voltage of 0.8V. The switching frequency was internally set to a rated frequency of 570KHz.Provide adjustable slow

start and Undervoltage locked inputs. The maximum absolute value of the TPS54331DR input voltage is 30V. The minimum operating

temperature is; -40℃ and the maximum operating temperature is; 150℃ (TJ).

TPS54331DR product features;

The integrated 80m Ω high-side MOSFET supports a continuous output current of up to 3A

The pulse-jump Eco-mode achieves high efficiency under light load

Periodic current limit, frequency return and thermal off protection

Provides an easy-to-use SOIC8 package

3.5 Up to 28V input voltage range

Output voltage is lowered to 0.8v

Fixed 570 kHz switch frequency

Typical 1A turns off static current

Adjustable slow start to limit the surge current

Programmable UVLO threshold value

Overvoltage transient protection