The TPS54424 is a full-featured 17-V (19-V maximum), 4-A synchronous step-down DC/DC converter in a 3.5 mm × 3.5 mm HotRod™ QFN package.
The device is optimized for small solution size through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through peak current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor footprint.
The peak current mode control simplifies the loop compensation and provides fast transient response. Cycle-by-cycle peak current limiting on the high-side and low-side sourcing current limit protects the device in overload situations. Hiccup limits MOSFET power dissipation if a short circuit or over loading fault persists.
A power good supervisor circuit monitors the regulator output. The PGOOD pin is an open-drain output and goes high impedance when the output voltage is in regulation. An internal deglitch time prevents the PGOOD pin from pulling low unless a fault has occurred.
A dedicated EN pin can be used to control the regulator on/off and adjust the input undervoltage lockout. The output voltage start-up ramp is controlled by the SS/TRK pin, which allows operation as either a standalone power supply or in tracking situations.
For additional terms or required resources, click any title below to view the detail page where available.
The AFE7700 evaluation module (EVM) is a board used to evaluate the AFE7700 integrated RF transceiver. AFE7700 supports up to four-transmit, four-receive, and two feedback channels (4T4R2F) and integrates phase-locked loops (PLLs) and voltage-controlled oscillators (VCOs) for generation of (...)
The AFE7900 evaluation module (EVM) is an RF-sampling transceiver platform that can be configured to support up to four-transmit, four-receive, and two-feedback (4T4R+2FB) channels simultaneously.
The module evaluates the AFE7900, which is a quad-channel RF-sampling analog front end (AFE) with (...)
The AFE7950 evaluation module (EVM) is an RF-sampling transceiver platform that can be configured to simultaneously support up to four-transmit and six-receive (4T6R) channels. The module evaluates the AFE7950, which is a quad-channel, RF-sampling, analog front end (AFE) with 14-bit, (...)
The TPS54424EVM-779 is an 4-A synchronous converter evaluation module (EVM). The TPS54424 is a synchronous buck converter, integrating both power MOSFETs to minimize solution size and provide high efficiency at full load. Fixed-frequency peak current-mode control is used to minimize period (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN-HR (RNV) | 18 | 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.