illustrate

The TPS6109x device provides a power solution for technical support products, whether it is a single lithium-ion or lithium-polymer or two alkaline batteries, nickel-cadmium or nickel-metal hydride batteries, which require a supply current of 1 or higher A: The converter generates a stable output voltage, or an external resistor divider is adjusted or fixed inside the chip. It offers high-efficiency power conversion and is capable of delivering output currents up to 0.5 V at 5 V and supply voltages as low as 1.8 V. The boost converter is based on a fixed frequency, pulse-width modulation (PWM) controller using a synchronous rectifier for maximum benefit. The switching connection of the boost switch and the rectifier is internally made possible to provide the lowest leakage and the best EMI performance.

characteristic

• Synchronous (96% efficiency) boost 500 mAh output 1.8-V input current converter
• In a 16-pin QFN package, 4×4 is available
• Device Quiescent Current: 20μA (typical)
• Input voltage range: 1.8-V to 5.5-V
• Adjustable output voltage up to 5.5 V Fixed output voltage option
• Power saving in low output power to improve efficiency mode
• Battery Low Voltage Comparator
• Low EMI converter (integrated anti-ringing switch)
• The load is disconnected during shutdown
• Over-temperature protection