The STMP30 PMIC from ST integrates three DC/DC converters to supply all the facility rails wanted for AMOLED shows in smartphones and cell units. In line with ST, the machine combines low quiescent present and enhanced features to increase battery runtime.
Working with an enter voltage of two.9 V to 4.8 V, the STMP30’s 550-mA VOUT1 enhance converter provides an adjustable output voltage. Not like different units that repair VOUT1 at 4.6 V, the STMP30’s output could be set between 4.6 V and 5.0 V in 100-mV increments. This optimizes the show brightness for lowest energy consumption and greatest visibility below various lighting circumstances. VOUT2 is supplied by a 550-mA single-phase buck-boost inverting converter, programmable from -0.8 V to -6.6 V, whereas VOUT3 is furnished by a 150-mA enhance converter with programmable output from 5.5 V to 7.9 V.
Output voltages are programmed utilizing S-Wire protocol by exterior pins. The PMIC additionally receives S-Wire messages to function the AMOLED in always-on show mode, displaying info on-screen constantly at very low energy. The STMP30 furnishes a real shutdown mode that helps maximize energy financial savings, in addition to security options akin to thermal safety, enter undervoltage lockout, and soft-start with inrush present limiting. Excessive-voltage outputs embody fast-discharge circuitry and short-circuit safety.
The STMP30 PMIC is in quantity manufacturing now. Contact an area ST gross sales workplace for pricing choices and pattern requests.
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