TPS54478EVM-037

TEXAS INSTRUMENTS  TPS54478EVM-037.  评估板, L10515Y 1.8V, 4A 降压稳压器

The is an evaluation module for TPS54478 Synchronous Step Down Converter with Pre bias Start up. The TPS54478 dc/dc converter is designed to provide up to a 4A output from an input voltage source of 2.95V to 6V. This evaluation module is designed to demonstrate the small printed circuit board areas that may be achieved when designing with the TPS54478 regulator. The switching frequency is externally set at a nominal 1000KHz. The high side and low side MOSFETs are incorporated inside the TPS54478 package along with the gate drive circuitry. The low drain to source on resistance of the MOSFETs allow the TPS54478 to achieve high efficiencies and helps keep the junction temperature low at high output currents. The compensation components are external to the integrated circuit, and an external divider allows for an adjustable output voltage. additionally, the TPS54478 provides adjustable slow start and undervoltage lockout inputs.

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2.95V to 6V operation

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4A output current

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1.8V output

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Hiccup model current limit

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Start up into Pre bias

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0.6V internal reference voltage

This EVM should be operated within the input voltage range of 3V to 6V and the output voltage range of 0.6V to 2.5V. Exceeding the specified input range may cause damage to the EVM.