TPS610987DSET

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The Texas Instruments TPS610987DSET is an efficient, programmable step-up DC-DC converter IC designed to regulate a wide voltage range between 1.2 V and 5.5 V. It has a maximum output voltage of up to 5.5V and a maximum output current of 2.1A.

Based on switching and linear regulators, the TPS610987DSET can be used in a variety of applications where high efficiency, low noise, and precise voltage control is needed. With its wide input voltage range, the TPS610987DSET is ideal for battery powered portable devices. It also features an adjustable gate delay to minimize switching noise for applications sensitive to EMC disturbances.

The TPS610987DSET is built on a BiCMOS process and optimized for a low quiescent current of 10uA under light-load conditions. This makes the device very suitable for battery powered applications, as it reduces the power consumption and extends the battery life. The device also includes power conversion and fault management functionality, such as cycle-by-cycle overcurrent protection, adjustable soft start and thermal protection.

The TPS610987DSET has an integrated switching FET and operates in pulse-width modulated (PWM) mode to convert input voltage to output voltage. This type of operation has the advantage of high efficiency and low output voltage ripple. An on-chip voltage reference is used to ensure the stability of the output voltage. The output voltage is determined by an external feedback voltage from the load. The average current on the inductor is regulated by the on-chip current sense amplifier, providing a programmable peak current limit up to 2.1A.

The TPS610987DSET also features a low dropout linear (LDO) regulator which is optimized to provide lower output voltage ripple and improved light-load performance. It can provide output voltage up to 0.9V with a programmable current limit of 200mA. The LDO features a low quiescent current of 2uA, making it suitable for use with small 1-cell Li-ion battery applications. The device also provides current limiting protection, over-temperature protection and foldback current protection.

The TPS610987DSET is a versatile step-up DC-DC converter IC offering a wide input voltage range, high efficiency, low quiescent current and low output voltage ripple. It is suitable for a wide variety of applications, particularly battery powered portable devices. The device includes both linear and switching regulator functionality, providing a high level of flexibility and enabling the design of high efficiency and low noise power systems.

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