TPS40055-EP

illustrate

The TPS40055 is a high-voltage, wide-input home (8 V to 40 V), synchronous, step-down converter. The TPS40055 series offers a variety of user-programmable features, including soft-start, undervoltage lockout, operating frequency, voltage feedforward, high-side current limiting, and loop-compensated design flexibility.

The TPS40055 can also be synchronized to an external power source. The TPS40055 integrates an external N-channel high-side and a synchronous rectifier (SR) MOSFET gate driver for the MOSFET. A drive logic gate reverse circuit is used to prevent cross-conduction, synchronous high-side, and synchronous rectifier conduction.

The TPS40055 uses voltage feedforward control technology to provide a wide (4:1) input voltage range with good linear regulation and fast response to changes in the input, thereby simplifying loop compensation for constant gain and input voltage transients.

characteristic

• Operating input voltage from 8 V to 40 V
• Input voltage feedforward compensation
• "1% has a built-in 0.7 V reference
• Programmable voltage mode controller with fixed frequency up to 1 MHz
• The internal gate is a high-side and synchronous N-channel MOSFET driver output
• 16-pin PowerPAD™ package ( Horse racing = 25°C/W)
• Thermal shutdown
• It can be synchronized externally
• Programmable high-side detection short-circuit protection
• Programmable closed-loop soft start
• TPS40055 source/sink
• Supporting defense, aerospace and medical applications
  • Control benchmarks
  • A package/test site
  • A production website
  • Can be used in military (-55°C/125°C) temperature range(1)
  • Extend product life cycles
  • Expand products, change notifications
  • Product traceability
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