Tps5430/31evm-173 3-a, Swift ™ Regulator Evaluation

This user's guide contains background information for the TPS5430 and TPS5431 as well as support
documentation for the TPS5430EVM-173 evaluation module (HPA173-001) and the TPS5431EVM-173
evaluation module (HPA173-002) . Also included are the performance specifications, the schematic, and
the bill of materials for the TPS5430EVM-173 and the TPS5431EVM-173.
The TPS5430 and TPS5431 DC/DC converters are designed to provide up to a 3-A output from an input
voltage source of 5.5 V to 36 V TPS5430 or 5.5 V to 23 V (TPS5431EVM-173). Rated input voltage and
output current range for the evaluation module is given in Table 1 . This evaluation module is designed to
demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS5430 BR>and TPS5431 Regulators The switching frequency is internally set at a nominal 500 kHz. The high-sidee
MOSFET is incorporated inside the TPS5430 31 package along with the Gate drive circuitry. The low
drain-to-source on resistance of the MOSFET allows the TPS5430 31 to achieve high efficiencies and
helps keep the junction temperature low at high output currents. The compensation components are
provided internal to the integrated circuit (IC), whereas an external divider allows for an adjustable output
voltage. Additionally, the TPS5430 31 provides an enable input. The absolute maximum input voltage is
38 V for the TPS5430EVM-173 and 25 V for the TPS5431EVM-173 . 
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TPS5430EVM-173 Schematic
TPS5430EVM-173 Schematic

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