The TPS54561 is a 60-V, 5-A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 65V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load supply current to 152 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor divider at the enable pin. The output voltage start up ramp is controlled by the soft start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 93% to 106% of its nominal voltage.
A wide adjustable switching-frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback and thermal shutdown protects internal and external components during an overload condition.
The TPS54561 is available in an 10-pin 4-mm × 4-mm WSON package.
| Documentación principal | Tipo | Título | Opciones de formato | Descargar la versión más reciente en inglés | Fecha |
|---|---|---|---|---|---|
| * | Hoja de datos | TPS54561 4.5-V to 60-V Input, 5-A, Step-Down DC-DC Converter with Soft-Start and Eco-mode™ datasheet (Rev. G) | PDF | HTML | 2/06/2021 | |
| Nota sobre la aplicación | Controller to Converter – Design Considerations for 24V and 48V Systems | PDF | HTML | 2/10/2024 | ||
| Nota sobre la aplicación | Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) | 16/09/2013 | |||
| Nota sobre la aplicación | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 26/10/2012 | |||
| Nota sobre la aplicación | Create a Split-Rail Power Supply with a Wide Input Voltage Buck Regulator (Rev. A) | 26/10/2012 |
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.
The TPS54561EVM-555 is a fully assembled and tested circuit for evaluating the TPS54561 Step-Down Converter. The TPS54561EVM-555 operates from a 7.0V to 60V input (12V nominal) and provides a 5.0V output at 5.0A.
The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)
This current-mode control buck converter provides 12V @ 4.2A over a wide 14V - 36V input voltage range. It uses minimal component count and a 500KHz switching frequency to occupy approximately 1 sq-inch of board area. It achieves a peak efficiency of 95.7% at 24Vin and 2A load.
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| WSON (DPR) | 10 | Ultra Librarian |
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