TPS55330RTET

The TPS55330RTET is a monolithic non-synchronous Switching Regulator with integrated 5A/24V power switch. The device can be configured in several standard switching-regulator topologies, including boost, SEPIC and isolated flyback. The device has a wide input voltage range to support applications with input voltage from multicell batteries or regulated 3.3, 5 and 12V power rails. The TPS55330 regulates the output voltage with current mode PWM (pulse width modulation) control and has an internal oscillator. The switching frequency of PWM is set by either an external resistor or by synchronizing to an external clock signal. The user can program the switching frequency from 100kHz to 1.2MHz. The device features a programmable soft-start function to limit inrush current during start up and has other built-in protection features including cycle-by-cycle overcurrent limit and thermal shutdown.

• Fixed-frequency current-mode PWM control
• Synchronization capability to external clock
• Adjustable soft-start time
• Pulse-skipping for higher efficiency at light loads
• Cycle-by-cycle current limit, thermal shutdown and UVLO protection
• ±0.7% Reference voltage accuracy
• 0.5mA Operating quiescent current
• 2.7µA Shutdown supply current
• Green product and no Sb/Br

Applications

Power Management, Computers & Computer Peripherals, Industrial, Communications & Networking