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.
| Documentación principal | Tipo | Título | Opciones de formato | Fecha |
|---|---|---|---|---|
| * | Data sheet | TPS55340 Integrated 5-A Wide Input Range Boost/SEPIC/Flyback DC/DC Regulator datasheet (Rev. E) | PDF | HTML | 13 sep 2021 |
| Technical article | Isolating a SEPIC | PDF | HTML | 26 feb 2024 | |
| Application note | Mitigating Procedure on Voltage Spike of Switching Node from Flyback Converter | PDF | HTML | 08 oct 2020 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 | ||
| User guide | PMLK Boost Experiment Book (Rev. A) | 31 ago 2016 | ||
| Application note | Isolated Continuous Conduction Mode Flyback Using the TPS55340 | 31 dic 2012 | ||
| Application note | Using the TPS55340 as a SEPIC.. (Rev. A) | 18 jul 2012 |
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
La placa de experimentación TI-PMLK boost forma parte de la serie TI Power Management Lab Kit (TI-PMLK). La serie TI-PMLK ofrece aprendizaje práctico para reforzar el conocimiento de la fuente de alimentación. El formato modular le permite a los usuarios personalizar la experiencia de la serie (...)
This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| HTSSOP (PWP) | 14 | Ultra Librarian |
| WQFN (RTE) | 16 | Ultra Librarian |
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