TPS65290BMRHFT

低静态电流，多模式PMIC电池供电 LOW QUIESCENT CURRENT, MULTI-MODE PMIC FOR BATTERY POWERED

The TPS65290 device is a power-managemant integrated circuit PMIC designed to operate in applications dependent on efficient power management over a wide range of system load conditions ranging from fractions of a microamp to a few hundred milliamps. The device operates over a wide 2.2-V to 5-V input-voltage range and incorporates a very low-quiescent-current always-on power supply, a 500-mA buck-and-boost converter, a 150-mA low-dropout regulator LDO and eight power-distribution switches. The always-on supply features three different factory selectable options: 30-mA buck converter with 300-nA quiescent current, 10-mA LDO with 400-nA quiescent current, and 10-mA zero IDDQ drop with 100-nA quiescent current. The buck-boost converter employs PFM or PWM operation with forced PWM option, for maximum overall efficiency. A designer can use the switches to support different configurations for the various loads supported by the TPS65290 device. For energy-harvesting applications, the device integrates a programmable input-voltage monitor to allow for connection and disconnection of the different power blocks and switches without the intervention of the master processor.

To maximize control flexibility, the TPS65290 device includes a factory-selectable choice between SPI and I2C interfaces. To minimize PC board footprint and reduce bill of materials BOM components and cost, the PMIC internally includes resistive dividers boost-buck, LDO, VIN monitor, I2C pullup resistors, SPI pulldown resistors, boost-buck compensation, and an interrupt pullup resistor. Completion of a comprehensive multi-rail solution for efficient flow meter, handheld industrial, fitness, and other long-term data-acquisition systems requires only low-cost ceramic capacitors and power inductors.