TPS55340RTET Description

The TPS55340 is a monolithic, nonsynchronous, switching regulator with an integrated 5-A, 40-V 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-V, 5-V, 12-V, and 24-V power rails.

TPS55340RTET Features

Internal 5-A, 40-V low-side MOSFET switch 

2.9-V to the 32-V input voltage range 

?à0.7% reference voltage 

0.5-mA operating quiescent current 

2.7-|ìA shutdown supply current 

Fixed frequency current mode PWM control 

Frequency adjustable from 100 kHz to 1.2 MHz 

Synchronization capability to an external clock 

Adjustable soft-start time ? Pulse skipping for 

higher efficiency at light loads 

Cycle-by-cycle current limit, thermal shutdown, 

and UVLO protection 

QFN-16 (3-mm ?á 3-mm) and HTSSOP-14 packages 

with PowerPAD? 

Wide ¨C40??C to 150??C operating TJ range 

Create a custom design using the TPS55340 

with the WEBENCH Power Designer

TPS55340RTET Applications

3.3-V, 5-V, 12-V, 24-V power conversion 

Boost, SEPIC, and flyback topologies 

Thunderbolt port, USB Type-C power delivery, 

power docking for tablets, and portable PCs 

Industrial power systems 

ADSL modems