TPS40057PWPR

The TPS4005x is a family of high-voltage, wide input (8 V to 40 V), synchronous, step-down controllers. The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft-start, UVLO, operating frequency, voltage feedforward, high-side current limit, and loop compensation. The TPS4005x uses voltage feed-forward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulseby-pulse current limit, as well as hiccup mode operation utilizing an internal fault counter for longer duration overloads.

Applications

• Power Modules
• Networking/Telecom
• Industrial/Servers

Key features

• Operating Input Voltage 8 V to 40 V
• Input Voltage Feed-Forward Compensation <1 %
• Internal 0.7-V Reference
• Programmable Fixed-Frequency Up to 1-MHz Voltage Mode Controller
• Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
• 16-Pin PowerPAD Package (θJC = 2°C/W)
• Thermal Shutdown
• Externally Synchronizable
• Programmable High-Side Sense Short-Circuit Protection
• Programmable Closed-Loop Soft-Start
• TPS40054 Source Only
• TPS40055 Source/Sink
• TPS40057 Source/Sink With vo Prebias