The TPS62903 is a highly-efficient, small, and flexible synchronous step-down DC-DC converter that is easy to use. A selectable switching frequency of 2.5 MHz or 1.0 MHz allows the use of small inductors and provides fast transient response. The device supports high VOUT accuracy of ± 1% with the DCS-Control topology. The wide input voltage range of 3 V to 17 V supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails.
The TPS62903 can automatically enter power save mode (if auto PFM/PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4 µA. AEE, if enabled, provides high efficiency across VIN, VOUT, and load current. The device includes a MODE/Smart-CONF input to set the internal/external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.
The device is available in small 9-pin VQFN package measuring 1.50 mm × 2.00 mm with 0.5-mm pitch.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS62903, 3-V to 17-V, High Efficiency and Low IQ Buck Converter in 1.5-mm × 2-mm QFN Package datasheet (Rev. A) | PDF | HTML | 18 Mar 2021 |
| Application brief | Solving Power Design Challenges in Enterprise SSD Applications | PDF | HTML | 23 Sep 2024 | |
| Application note | Using the TPS6290x in an Inverting Buck – Boost Topology | PDF | HTML | 12 Jul 2022 | |
| Application note | How to Best Use TPS62903 for a Given Application Requirement | PDF | HTML | 13 Aug 2021 | |
| Application note | Comparison of TPS6290x vs. TPS621x0 | PDF | HTML | 23 Jul 2021 | |
| Application brief | Multi-Function Pins for Easy Designing | PDF | HTML | 07 Jul 2021 | |
| Technical article | Which pinout is best? How individual, multifunctional and trimmed pinouts help add | PDF | HTML | 28 Jun 2021 | |
| EVM User's guide | TPS6290x Step-Down Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 07 May 2021 | |
| Certificate | TPS62903EVM-069 EU RoHS Declaration of Conformity (DoC) | 15 Dec 2020 |
For additional terms or required resources, click any title below to view the detail page where available.
TMDSCNCD263P is an HSEC180 controlCARD-based evaluation and development tool for the AM263Px series Sitara™ high-performance microcontrollers. This board is ideal for initial evaluation and prototyping as it provides a standardized and easy-to-use platform to develop your next application. (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN-HR (RPJ) | 9 | Ultra Librarian |
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.