TPS61201

illustrate

The TPS6120x device provides a power solution for products powered by a single-cell, two-cell, or three-cell alkaline, nickel-cadmium or nickel-metal hydride battery, or a single-cell lithium-ion or lithium-polymer battery. It can also be used in fuel cells or solar cells, where the ability to handle low input voltages is essential. The possible output current depends on the output voltage ratio to the input. These devices provide an output current of 600 mA at 5-V while using a single-cell Li-Ion or Li-Polymer battery and releasing it to a 2.5 V boost converter based on a fixed frequency, pulse pulse width modulation (PWM) controller using synchronous rectification technology for maximum benefit. At low load currents, the converter enters power-down mode to maintain high efficiency over a wide load current range.

characteristic

• More than 90% efficiency in
  • Outputs 3.3 volts (VIN≥2.4 V) at 300 mA
  • Six hundred mA at 5 V output voltage (VIN≥3 V) current
• Automatic conversion between boost mode and buck conversion mode
• The device quiescent current is less than 55 microamps
• Start up to an input voltage of 0.5 V at full load
• The operating input voltage range is from 0.3 V to 5.5 V
• Programmable undervoltage lockout threshold
• Output short-circuit protection under all operating conditions
• Fixed and adjustable output voltage options from 1.8 V to 5.5 V
• Power saving in low output power to improve efficiency mode
• The possibility of forcing fixed-frequency operation
• Load disconnects during shutdown
• Overtemperature protection
• Small 3mm x 3mm QFN-10 package
• apply
  • All single-cell, two-cell and three-cell alkaline, nickel-cadmium or nickel-metal hydride batteries or single-cell lithium battery-powered products
  • Fuel cell and solar cell powered products
  • Portable audio player
  • Pocket PC