The TPS6120x devices provide a power supply solution for products powered by either a
single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer
battery. It is also used in fuel cell or solar cell powered devices where the capability of
handling low input voltages is essential. Possible output currents depend on the input to output
voltage ratio. The devices provide output currents of up to 600 mA at a 5-V output, while using a
single-cell Li-Ion or Li-Polymer battery and discharges it down to 2.6 V. The boost converter is
based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification
to obtain maximum efficiency. At low load currents, the converter enters the Power Save mode to
maintain a high efficiency over a wide load current range. The Power Save mode can be disabled,
forcing the converter to operate at a fixed switching frequency. The average input current is
limited to a maximum value of 1500 mA. The output voltage is programmed by an external resistor
divider, or is fixed internally on the chip. The converter can be disabled to minimize battery
drain. During shutdown, the load is completely disconnected from the battery. The device is
packaged in a 10-pin VSON package measuring 3 mm × 3 mm.
The TPS6120x devices provide a power supply solution for products powered by either a
single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer
battery. It is also used in fuel cell or solar cell powered devices where the capability of
handling low input voltages is essential. Possible output currents depend on the input to output
voltage ratio. The devices provide output currents of up to 600 mA at a 5-V output, while using a
single-cell Li-Ion or Li-Polymer battery and discharges it down to 2.6 V. The boost converter is
based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification
to obtain maximum efficiency. At low load currents, the converter enters the Power Save mode to
maintain a high efficiency over a wide load current range. The Power Save mode can be disabled,
forcing the converter to operate at a fixed switching frequency. The average input current is
limited to a maximum value of 1500 mA. The output voltage is programmed by an external resistor
divider, or is fixed internally on the chip. The converter can be disabled to minimize battery
drain. During shutdown, the load is completely disconnected from the battery. The device is
packaged in a 10-pin VSON package measuring 3 mm × 3 mm.