illustrate

The TPS6103x device provides power solutions that support products whether single-cell Li-Ion or Li-Polymer, or two- to three-cell alkaline, NiCd or NiMH batteries. The converter generates a regulated output voltage, either by adjusting an external resistor divider or fixed inside the chip. It provides efficient power conversion and can provide output current up to 1 A 5 V for implementation with supply voltages as low as 1.8 V, and the boost converter is based on a fixed-frequency, pulse-width modulated (PWM) controller using synchronous rectifiers for maximum benefit. The low-load current converter enters power-down mode to maintain high efficiency over a wide load current range.

characteristic

• 96% high efficiency 1000 mA output 1.8 - V input current synchronous boost converter
• Quiescent current of the device. 。 20μA (typical)
• Input voltage range. 。 1.8 V to 5.5 V
• Fixed and adjustable output voltage options up to 5.5 - V
• Power saving in low output power to improve efficiency mode
• Battery low voltage comparator
• Low EMI converter (integrated ringing switch)
• Load disconnects during shutdown
• Over-temperature protection
• Available in a small 4mm x 4mm QFN-16 package or in a TSSOP-16 package
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  • All single-cell lithium or dual-battery operation is MP-3 players, PDAs, and other portable devices