The TPS40009 is a voltage-mode, synchronous buck PWM controller that uses TI's proprietary Predictive Gate Drive™ technology to wring maximum efficiency from step-down converters. This controller provides a bootstrap charging circuit to allow the use of an N-channel MOSFET as the topside buck switch to reduce conduction losses and increase silicon device utilization. Predictive Gate Drive™ technology controls the delay from main switch turn-off to synchronous rectifier turn-on and also the delay from rectifier turn-off to main switch turn-on. This allows minimization of the losses in the MOSFET body diodes by reducing conduction and reverse recovery time. This user's guide provides details on a 5-A buck converter that converts 3.3 V down to a 1.2-V level using the TPS40009 controller, with less than one square inch board area.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | User guide | Using the TPS40009EVM-001 | 03 Mar 2004 | |
| Certificate | TPS40009EVM-001 EU Declaration of Conformity (DoC) | 02 Jan 2019 | ||
| Data sheet | LOW INPUT BUCK CONTROLLER, TPS40007/9 datasheet (Rev. B) | 08 Feb 2005 |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.