The TPS55340 is a monolithic, nonsynchronous, switching regulator with 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.
The TPS55340 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 100 kHz to 1.2 MHz.
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.
The TPS55340 is available in a small 3-mm × 3-mm 16-pin QFN as well as 14-pin HTSSOP packages with PowerPAD for enhanced thermal performance.
The 5-A, 40-V TPS55340 boost converter in the HTSSOP-14 package is pin-to-pin compatible with the 3-A, 40-V TPS61175, and it extends the maximum input voltage from 18 V to 32 V.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS55340 Integrated 5-A Wide Input Range Boost/SEPIC/Flyback DC/DC Regulator datasheet (Rev. E) | PDF | HTML | 13 Sep 2021 |
| Application note | Mitigating Procedure on Voltage Spike of Switching Node from Flyback Converter | PDF | HTML | 08 Oct 2020 | |
| EVM User's guide | TPS55340EVM-017 5-12V Input, 24V Output Boost Evaluation Module (Rev. B) | 17 Jul 2019 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| User guide | PMLK Boost Experiment Book (Rev. A) | 31 Aug 2016 | ||
| EVM User's guide | Using the TPS55340EVM-147 6-18V input, 12V output SEPIC Evaluation Module (Rev. A) | 02 Aug 2013 | ||
| EVM User's guide | Using the TPS55340EVM-148 8-24V Input, 5V Output Flyback Evaluation Module (Rev. A) | 18 Jun 2013 | ||
| Application note | Isolated Continuous Conduction Mode Flyback Using the TPS55340 | 31 Dec 2012 | ||
| Application note | Using the TPS55340 as a SEPIC.. (Rev. A) | 18 Jul 2012 |
For additional terms or required resources, click any title below to view the detail page where available.
The TI-PMLK Boost Experiment Board is part of the TI Power Management Lab Kit (TI-PMLK) series. TI-PMLK series provides hands on learning to reinforce power supply knowledge. The modular format allows users to customize the TI-PMLK series experience in a way that makes the most impact on (...)
The TI-PMLK Boost Experiment Board is part of the TI Power Management Lab Kit (TI-PMLK) series. TI-PMLK series provides hands on learning to reinforce power supply knowledge. The modular format allows users to customize the TI-PMLK series experience in a way that makes the most impact on (...)
| Package | Pins | Download |
|---|---|---|
| HTSSOP (PWP) | 14 | View options |
| WQFN (RTE) | 16 | View options |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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.