The TPS65022 is an integrated Power Management IC for applications powered by one Li-Ion
or Li-Polymer cell, and which require multiple power rails. The TPS65022 provides three highly
efficient, step-down converters targeted at providing the core voltage, peripheral, I/O and memory
rails in a processor based system.
All three step-down converters enter a low-power mode at light load for maximum
efficiency across the widest possible range of load currents. The TPS65022 also integrates two
general-purpose 200-mA LDO voltage regulators, which are enabled with an external input pin. Each
LDO operates with an input voltage range between 1.5 V and 6.5 V, allowing them to be supplied from
one of the step-down converters or directly from the battery.
The default output voltage of the LDOs can be digitally set to 4 different voltage
combinations using the DEFLDO1 and DEFLDO2 pins.
The serial interface can be used for dynamic voltage scaling, masking interrupts, or for
disabling, enabling, and setting the LDO output voltages. The interface is compatible with the
Fast/Standard mode I2C specification, allowing transfers at up to 400
kHz. The TPS65022 is available in a 40-pin (RHA) VQFN package, and operates over a free-air
temperature of –40°C to 85°C.