TLV61225 - Texas Instruments

TLV61225 Single-Cell High-Efficient Step-Up Converter

The TLV61225 device provides a power-supply solution for products powered by either a single-cell or 2-cell alkaline or NiMH, or 1-cell Li-primary battery. Possible output currents depend on the input-tooutput voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minima.

Features

•1 Up to 94% Efficiency at Typical Operating Conditions
• 5-μA Quiescent Current
• Operating Input Voltage from 0.7 V to 3.3 V
• Pass-Through Function During Shutdown
• Output Current of More Than 40-mA From a 1.2-V Input
• Typical Switch Current Rating 400 mA
• Output Overvoltage Protection
• Overtemperature Protection
• Fixed 3.3-V Output Voltage
• Small 6-Pin SC-70 Package 2 Applications
• Battery-Powered Applications
  – 1- to 2- Cell NiMH or Alkaline
  – 1-Cell Li-Primary
• Consumer and Portable Medical Products
• Personal Care Products 3 Description The TLV61225 device provides a power-supp.