The TPS5450 is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5450 feedback loop is internally compensated.
The TPS5450 device is available in a thermally-enhanced, 8-pin SOIC PowerPAD package. TI provides evaluation modules and software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS5450 5-A, Wide Input Range, Step-Down Converter datasheet (Rev. E) | PDF | HTML | 15 Jul 2022 |
| Circuit design | Power-Supply Margining Circuit for SMPS Using a Precision DAC (Rev. B) | PDF | HTML | 24 Sep 2024 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
| EVM User's guide | TPS5450EVM-254 5-A, Swift Regulator Evaluation Module | 26 Apr 2007 | ||
| Application note | Using TPS5410/20/30/31/50 w/Aluminum/Ceramic Output Capacitors (Rev. C) | 21 Mar 2007 |
For additional terms or required resources, click any title below to view the detail page where available.
This evaluation module is designed to demonstrate a typical printed-circuit-board application using the TPS5450 regulator (Vin 10 V - 31 V, up to 5 A). This does not reflect the full range of possible input and output voltages that may be used when designing with this part.
The switching frequency (...)
The TUSB319EVM provides a complete reference design, which is a DFP controller ideal for Type-C USB chargers, it supports up to 3A@5V VBUS power signaling and VBUS detection.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
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