illustrate

The TPS6301x device provides a power solution powered by a two-cell or three-cell alkaline battery, a nickel-cadmium or nickel-metal hydride battery, or a single lithium-ion or lithium-polymer battery. The output current can be up to 1200 mA while a single lithium-ion or lithium-polymer battery is used and discharged to 2.5 volts or less. The buck-boost converter is fixed-frequency-based, and the pulse-width modulation (PWM) controller uses synchronous rectification for maximum benefit. At low load currents, the converter enters power-saving mode to maintain high efficiency over a wide load current range. Power saving mode can be disabled, forcing the converter to fix the switching frequency. The maximum average switching current is limited to a typical value of 2200 mA.

characteristic

• Up to 96% efficiency
• 1200 mAh outputs 3.3 buck mode step V voltage (VIN = 3.6 V to 5.5 V) current
• Up to 800 mA outputs 3.3 V current in boost mode (VIN > 2.4 V).
• Automatically go off the stage and switch between boost modes
• The quiescent current of the device is less than 50μA
• Input voltage range: 2 V to 5.5 V
• Fixed and adjustable output voltage options from 1.2 V to 5.5 V
• Power saving in low output power to improve efficiency mode
• Forced fixed frequency operation, synchronization possible
• The load is disconnected during shutdown
• Output overvoltage protection
• Overheating protection
• It is available in a small 20-pin 2.14 mm × 1.93 mm WCSP package
• apply
  • All dual and triple alkaline batteries, nickel-cadmium or nickel-metal hydride batteries or single-cell lithium battery powered products
  • Portable audio player
  • handheld computer
  • Cellular phones
  • Personal medical products
  • White LED