SWIFT, Eco-mode, SwitcherPro, PowerPAD are trademarks of Texas Instruments.
The TPS54331 is a 28-V, 3-A non-synchronous buck converter that integrates a low RDS(on) high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1 µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle by cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS54331-Q1 3-A 28-V Input, Step Down, SWIFT™ DC/DC Converter With Eco-mode™ datasheet | 08 Nov 2010 | |
| User guide | TPS54331 Step-Down Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 08 Oct 2021 |
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The TPS54331EVM-232 is a fully assembled and tested circuit for evaluating the TPS54331 synchronous step-down SWIFT™ converter. The EVM converts a 3.5-V to 28-V input voltage to a regulated 3.3-V output voltage that delivers up to 3-A output. The switching frequency is internally set at a (...)
| Package | Pins | Download |
|---|---|---|
| SOIC (D) | 8 | View options |
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