TPS61100RGERG4

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The TPS61100RG4 is a programmable synchronous boost converter designed specifically for low and power on-line power conversion applications. It is used in a wide range of applications ranging from cellular handsets to embedded gaming devices. It is a complete power supply solution that includes built-in programmability, fast transient response and minimal external components. It is specially designed to allow easy implementation of a voltage level shifting design. It also offers one of the best switch parameters of any synchronous boost converter available in the market.

Application Fields

The TPS61100RG4 is ideally suited for a wide range of portable and battery-powered applications. It can be used for power conversion in embedded gaming consoles, cell phones and PDAs, PDAs with keyboard, WAN terminals and LCD displays. It is also well-suited for automotive and industrial applications where DC to DC conversion is used for powering distributed microprocessors, A/Ds and D/As. As its efficiency is over 90%, it is also ideal for any portable device that is used intermittently. Since it is a very low power solution, it can easily meet power requirements of emerging applications such as MEMS, smart phones and ultra low-power microprocessors.

Working Principle

The TPS61100RG4 is based on a buck-boost topology, that is, it can increase or decrease the output voltage depending on the feedback voltage. It achieves this by switching the input voltage to generate an output voltage that is higher or lower than the input signal. It is also capable of delivering current or power levels that are up to 10 times higher than the operating voltage. To ensure precise output voltage control and fast transient response, the boost converter includes a programmable frequency compensation loop and a programmable soft-start feature. The internal loop compensation allows a rapid transient response time, that is, the time it take for the boost converter to settle to its output voltage level after the load changes is an order of magnitude faster than converters with external components. The soft-start feature ensures that the initial inrush current is limited, thus lessening the stress on the start-up components. The input voltage range is also wide, allowing it to be used for multi-voltage applications.

The TPS61100RG4 also provides a very low power stop with a power consumption of less than 200µA from the main power source. This further reduces the power consumption of the system while in a sleep state.

Conclusion

The TPS61100RG4 is a synchronous buck-boost power conversion IC which offers many advantages over other solutions. It provides excellent transient response, low power consumption in sleep mode, wide input voltage range and programmable parameters. Due to these features, it is ideal for a variety of portable and battery-powered applications in the current market.

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