Texas Instruments TPS563231 | Demoboard TPS563231EVM-032

Description

The TPS563231 is a single, adaptive on-time, D-CAP2™ mode, synchronous buck converter requiring a very low external component count. The D-CAP2 control circuit is optimized for low-ESR output capacitors such as POSCAP, SP-CAP, or ceramic types and features fast transient response with no external compensation. The switching frequency is internally set at a nominal 600 kHz and enters Advanced Ecomode in light load conditions. The high-side and low-side switching MOSFETs are incorporated inside the TPS563231 package along with the gate-drive circuitry. The low drain-to-source on resistance of the MOSFETs allows the TPS563231 to achieve high efficiencies and helps keep the junction temperature low at high output currents. The TPS563231 dc/dc synchronous converter is designed to provide up to a 3-A output from an input voltage source of 4.5 V to 17 V. The output voltage range is from 0.6 V to 7 V. Rated

Features

• 3-A Converter Integrated 95-mΩ and 55-mΩ FETs
• D-CAP3™ Mode Control with fast transient response
• Input Voltage Range: 4.5 V to 17 V
• Output Voltage Range: 0.6 V to 7 V
• Pulse Skip Mode
• 600-kHz Switching Frequency
• Low Shutdown Current Less than 10 µA
• 2% Feedback Voltage Accuracy (25 ºC)
• Startup from Pre-Biased Output Voltage
• Cycle-by-Cycle Over Current Limit
• Hiccup-mode Over Current Protection
• Non-Latch UVP and TSD Protections
• 6-Pin SOT563 Package

Typical applications

• Networking Home Terminal / Digital Set Top Box (STB) / Surveillance
• Digital TV Power Supply / High Definition Blu-ray™ Disc Players

More information

• Datasheet
• IC product information