illustrate

The TPS6012x boost, regulated charge pump produces an output voltage from 1.8-V to 3.3 V or 3-V ± 4% to 3.6 V input voltage (two alkaline, nickel-cadmium, nickel-metal hydride batteries or). They can provide output currents above 200 mA (100 mA TPS60122 and TPS60123) from 2-V input. The 4 external capacitors are required to build a complete high-efficiency DC/DC charge pump converter. For high efficiency over a wide input voltage range, the charge pump automatically selects a conversion mode between 1.5x or 1.5x. From the 2-V input, all chips can be started with full load current.

These devices feature a power-saving pulse hopping mode at light loads, extending battery life. TPS60120, TPS60122 and TPS60124 include low battery comparisons.

characteristic

• The higher average efficiency exceeds the input voltage range because of the special switching topology
• The output of at least 200 mA has an input voltage range of 1.8 V to 3.6-V current
• Output voltage regulated at 3.3 - V or 3 - V is ± 4%
• No inductance required, low EMI
• There are only four required external elements
• Quiescent current of 55 uA
• 0.05 - Shutdown current of uA
• The load is disconnected at the shutdown
• Integrated low battery and power-good detector
• Evaluation Modules Available (TPS60120EVM - 142)
• apply
  • Two battery-powered applications
  • Portable instrument
  • Battery-powered microprocessor systems
  • Small devices
  • Backup battery boost converter
  • Handheld computers, organizers, laptops
  • MP-3 Portable Audio Player
  • Handheld instrument
  • Medical devices (e.g., blood glucose meters)