TPS54335ADDA

TPS54335ADDA Description

The TPS54335ADDA is a 3A Synchronous Step-down Converter with Eco-mode™. This device includes an integrated low-side switching FET that eliminates the need for an external diode which reduces component count. Efficiency is maximized through the integrated 128 and 84mR MOSFETs, low IQ and pulse skipping at light loads. Using the enable pin, the shutdown supply current is reduced to 2µA. With a well-regulated voltage reference that is 1.5 percent over- temperature, this step-down (buck) converter delivers accurate regulation for a range of loads. The TPS54335A device is protected in overload conditions by cycle-by-cycle current limiting on the high-side MOSFET, which is reinforced by a low-side sourcing current limit that prevents current runaway. To prevent excessive reverse current, a low-side sinking current limit switches off the low-side MOSFET. If the over-current condition lasts longer than the predetermined time, hiccup protection is activated.

TPS54335ADDA Features

Synchronous 128mR and 84mR MOSFETs for 3A continuous output current
Internal 2ms soft-start, 50kHz to 1.5MHz adjustable frequency
Low 2µA shutdown, quiescent current
0.8V Voltage reference with ±0.8% accuracy
Current mode control
Monotonic start-up into pre-biased outputs
Pulse skipping for light-load efficiency
Hiccup mode over-current protection
Thermal shutdown (TSD) and overvoltage transition protection
Green product and no Sb/Br

TPS54335ADDA Applications

Consumer Electronics
Multimedia
Power Management
Industrial
Audio
Automotive