TPS61252

illustrate

The TPS61252 device provides a power solution powered by a three-cell alkaline, NiCd or NiMH battery, or a single Li-Ion or Li-Polymer battery. The wide input voltage range is ideal for portable applications such as power supplies for mobile phones or computer peripherals. The device has programmable resistors (trademarked_ILIM）Input current is limited and suitable for a wide range of applications.

At light loads, the device automatically enters a skip cycle mode (PFM), allowing the converter to maintain the desired output voltage while drawing only 30μA of the battery. This will allow the lowest quiescent current with the highest efficiency.

characteristic

• Resistor programmable input current limit
  • ± 20% current 500 mA accuracy over temperature
  • Programmable from 100 mA to 1500 mA
• Up to 92% efficiency
• V IN_targetThe range is from 2.3 V to 6.0 V
• Power Good indicates an appropriate output voltage level
• The output voltage is adjustable to 6.5 V
• 100% duty cycle mode as V_{The output is > in Vin}
• Load disconnect and reverse current protection
• Short-circuit protection
• Typical operating frequency is 325 MHz
• Available in 2 × 2mm QFN-8 packages
• apply
  • USB host supplies from single-cell lithium-ion batteries
  • Currently limited applications
  • Lithium-ion battery applications
  • Audio apps
  • RF power amplifier buffer