TPS62866 - Texas Instruments

TPS62866 4-A and 6-A Synchronous Step-Down Converter

The TPS62864 and TPS62866 devices are highfrequency synchronous step-down converters with I2C interface which provide an efficient, adaptive, and high power-density solution. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current r.

Features

• 7-mΩ and 6.5-mΩ internal power MOSFETs
• >90% efficiency (0.9-V output)
• DCS-control topology for fast transient response
• 1% output voltage accuracy
• 4-µA operating quiescent current
• 2.4-V to 5.5-V input voltage range
• 2.4-MHz switching frequency
• Selection by external resistor
  – Start-up output voltage
  – I2C slave address
• Selection by I2C interface
  – Power save mode or forced PWM mode
  – Output discharge
  – Hiccup or latching short-circuit protection
  – Output voltage ramp speed
• VID pin for dynamic voltage scaling (DVS)
• Thermal pre-warning and thermal shutdown
• Power good indica.