TPS61220

illustrate

The TPS6122x family of devices provides a power solution for products powered by a single-cell, two- or three-cell alkaline, NiCd or NiMH battery, or a single-cell Li-Ion or Li-Polymer battery. The possible output currents depend on the ratio of input to output voltage. The boost converter is based on a hysteresis controller using synchronous rectification to obtain the lowest quiescent current efficiency topology. The adjustable version of the output voltage can be set externally by an external resistor divider or internally with a fixed output voltage. The converter can be turned off by a characteristic enable pin. And turned off, battery consumption is minimized. The device measures 2 mm × 2 mm in a 6-pin SC-70 package (DCK) for small circuit layout size.

characteristic

• Typical operating conditions with up to 95% efficiency
• 5.5μ quiescent current
• An input with a load start-up voltage of 0.7 V is implemented
• Operating input voltages from 0.7 V to 5.5 V
• Closed by function during passing
• Minimum switching current 200 mA
• Protection features:
  • Output overvoltage
  • superheating
  • Input undervoltage lockout
• The output voltage is adjustable from 1.8 V to 5.5 V
• Fixed output voltage version
• Small 6-pin SC-70 package
• apply
  • Battery-powered applications
    • 1 to 3 batteries alkaline, nickel-cadmium or nickel-metal hydride
    • A lithium-ion or lithium-ion elementary school
  • Solar or fuel cell powered applications
  • Consumer and portable medical products
  • Personal care products