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TPS5430-Q1 Datasheet(PDF) 11 Page - Texas Instruments |
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TPS5430-Q1 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 33 page + PwPd 10.8 - 19.8 V L1 15 H m 6 4 9 5 2 3 GND VSNS VIN NC NC ENA BOOT PH 7 1 8 C1 10 F m C3 220 F m D1 B340A C2 0.01 F m VOUT 5 V R2 3.24 kW R1 10 kW VIN EN U1 TPS5430DDA TPS5430-Q1 www.ti.com SLVS751D – NOVEMBER 2007 – REVISED JULY 2015 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.1 Application Information The TPS5430-Q1 is a 3-A, step down regulator with an integrated high side MOSFET. This device is typically used to convert a higher DC voltage to a lower DC voltage with a maximum available output current of 3 A. Example applications are: High Density Point-of-Load Regulators for Car Audio, High Power LED Supply, Battery Chargers, and other 12-V and 24-V supplied systems. Use the following design procedure to select component values for the TPS5430-Q1. 8.2 Typical Applications 8.2.1 Application Circuit, 12 V to 5 V Figure 9 shows the schematic for a typical TPS5430-Q1 application. The TPS5430-Q1 can provide up to 3-A output current at a nominal output voltage of 5 V. For proper thermal performance, the exposed thermal pad underneath the device must be soldered down to the printed-circuit-board. Figure 9. Application Circuit, 12 V to 5 V 8.2.1.1 Design Requirements For this design example, use the following as the input parameters: DESIGN PARAMETER(1) EXAMPLE VALUE Input voltage range 10.8 V to 19.8 V Output voltage 5 V Input ripple voltage 300 mV Output ripple voltage 30 mV Output current rating 3 A Operating frequency 500 kHz (1) As an additional constraint, the design is set up to be small size and low component height. Copyright © 2007–2015, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: TPS5430-Q1 |
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