DASDA9053-31HA1

The DA9053 is a quad-buck PMIC with supply domain flexibility to support a wide range ofapplication processors, associated peripherals, and user interface functions.Combining a dual input switched-mode USB-compatible charger, full power-pathmanagement, four bucks, ten linear regulators, and support for multiple sleep modes:the DA9053 offers an energy-optimised solution suitable for portable handheld, wireless,industrial, and infotainment applications.The high-efficiency Li-lon/Polymer switching charger supports precise current/voltage chargingas well as pre-charge and USB modes without processor interaction. During charging, the dietemperature is thermally regulated enabling high-capacity batteries to be rapidly charged at currentsup to 1.8 A with minimum thermal impact. USB suspend mode operation is supported and, forrobustness, the power inputs are protected against over-voltage conditions.The autonomous power-path controller seamlessly detects and manages energy flow between anAC adaptor, USB cable, and battery while maintaining USB power specification compliance. Theinternally-generated system power rail supports power scenarios such as instant-on with a fullydischarged battery. A reverse-protected backup battery charger is also integrated into the powerpathfunction.Controlled by a programmable digital power manager, the 14 user-programmable switched/linearregulators can be configured to meet the start-up sequence, voltage, and timing requirementsfor most applications. The power manager includes supply-rail qualification and system resetmanagement. For optimal processor energy-per-task performance,Dynamic Voltage Scaling (DVS) is available on up to five supplydomains. Dialog’s patented SmartMirror™ dynamic biasing isimplemented on all linear regulators.

• Switched DC/USB charger with power-path management
• Four buck converters (three with DVS) 0.5 V to 2.5 V, up to 2 A
• Ten programmable high PSRR LDOs
• Low power backup charger 1.1 V to 3.1 V, up to 6 mA
• 32 kHz Real Time Clock (RTC) with alarm wake-up
• 10-channel general purpose ADC with touch screen interface with pen down detect