TPS5430DDAR PWM Converter Datasheet, Applications, Pinout

The TPS543x has a standard input start-up voltage of 5.3 V. The ENA pin can be used to turn off the TPS543x, lowering the supply current to 18 A. When the ENA pin is floating, an internal pullup current source allows operation. The TPS543x incorporates an intermal slow-start circuit that reduces rush current and output voltage overshoot by slowing the output rise time during startup. The inbuilt 1.221-V feedback reference serves as the minimum output voltage. An OVP comparator reduces output overvoltage transients. When the OVP comparator is active, the high-side MOSFET is deactivated and remains deactivated until the output voltage is less than 1125% of the intended output voltage. The integrated high-side MOSFET's peak current is limited by internal cycle-by-cycle overcurrent protection.

Symbol

Footprint

3D-Model

 ●Wide input voltage range:

TPS5430: 5.5V to 36 V

TPS5431:5.5V to 23 V

●Up to 3-A continuous (4-A peak) output current

●High efficiency up to 95% enabled by 110-mQ integrated MOSFET switch

●Wide output voltage range: adjustable down to 1.22 V with 1 .5% initial accuracy

●Internal compensation minimizes external parts count

●Fixed 500-kHz switching frequency for small filter size

●Improved line regulation and transient response by input voltage feedforward

●System protected by overcurrent limiting, overvoltage protection, and thermal shutdown

●- 40°C to 125°C operating junction temperature range

●Available in small thermally enhanced 8-pin SO

PowerPAD^TM package

●Create a custom design using the TPS5430 with

the WEBENCHB Power Designer

Consumer: set-top box, DVD, LCD displays

Industrial and car audio power supplies

Battery chargers, high-power L ED supply

12-V and 24-V distributed power systems

10 V 35 V Input to 5 V Output Application Circuit

Application Circuit 9V 21V Input to 5 V Output

LM2596: This is a commonly used buck converter that offers similar features and performance to the TPS5430DDAR. It has a wide input voltage range and high efficiency.

LT1763: This is a low dropout (LDO) regulator that can be used as an alternative to the TPS5430DDAR in applications where a linear voltage regulator is preferred over a switching regulator.

MP1584: This is another buck converter that provides a compact and efficient solution for step-down voltage regulation. It has a wide input voltage range and is suitable for various applications.

TPS5430DDAR vs TPS54331DR Converter: Are They Replaceable