TI TPS40130DBTR

The TPS40130 is a two-phase synchronous buck controller optimized for low output voltage, high output current applications powered from 3V to 40V supplies. Compared to a single power stage, multiphase converters offer several advantages, including reduced current ripple on input and output capacitors, faster transient response to load steps, increased power handling capability, and higher system efficiency.

The switching frequency of each phase can reach up to 1MHz, allowing the effective ripple frequency at both input and output to reach up to 2MHz. The two phases operate 180 degrees out of phase.

These devices have limited built-in ESD protection. During storage or handling, pins should be shorted together or the devices placed in conductive foam to prevent electrostatic damage to the MOS gates.

• Two-phase interleaved operation
• 3V to 40V power stage operating range
• Supports up to 6V output via external resistor divider
• Typically requires 50mA at 5V input voltage, depending on external MOSFETs and switching frequency
• 1μA shutdown current
• Programmable switching frequency up to 1MHz per phase
• Current mode control with forced current sharing
• Internal 0.7V reference voltage better than 1% accuracy
• Resistor divider directly sets output overvoltage threshold and input undervoltage lockout
• True remote sense differential amplifier
• Resistive or inductor DCR current sensing
• 30-pin TSSOP or 32-pin QFN package
• Compatible with TPS40120 for 6-bit digital control output

• Graphics cards
• Internet servers
• Network equipment
• Telecommunications equipment
• DC power distribution systems