Description
STw4811 is a power management companion chip for multimedia processors used in portable applications. It supplies the multimedia processor including its memories and peripherals. STw4811 supports the main mass memory standard cards. SDIOTM is also supported and allows to connect multimedia peripherals like cameras.

FEATUREs
■ 2 step-down converters
   – 1 to 1.45 V with 15 steps at 700 mA
   – 1.8 V at 600 mA for general purpose usage
■ 3 low-drop output regulators for different uses
   – PLL analog supplies:
      1.05 V, 1.2 V, 1.3 V 1.8 V - 10 mA
   – Processor analog functions:
      2.5 V - 10 mA
   – Auxiliary device:
      1.5 V, 1.8V , 2.5 V, 2.8 V - 150 mA
■ USB OTG module
   – Full and low speed USB OTG transceiver
   – Charge-pump (5 V, 100 mA) for USB cable
■ Mass memory cards (SD/MMC/SDIO)
   – 1 linear regulator: 1.8 V, 1.85 V, 2.6 V,
   2.7 V, 2.85 V, 3 V, 3.3 V - 150 mA
   – Level shifter
■ Miscellaneous
   – 32 kHz control for multimedia processor
   – Processor supply monitoring
   – Processor reset control
   – 2 serial I2C interfaces

APPLICATIONs
■ ST NomadikTM STn881x
■ Multimedia processor
■ Mobile phones, PDA, videophone