STW4810_0709 Datasheet, PDF (8/79 Pages) STMicroelectronics – Power management for multimedia processors

STw4810
1
Overview
Overview
The STw4810 power management device has the following features:
● Power management module
– 1 Step-down converter for processor core (1 to 1.5 V with 15 steps at 600 mA)
– 1 Step-down converter (1.8 V at 600 mA) for general purpose usage such as
processor input/output supply, external memory, DDR and SDRAM and
peripherals
– 1 Low-drop output regulator for analog supplies, such as PLL (1.05 V, 1.2 V, 1.3 V,
1.8 V at 10 mA)
– 1 Low-drop output regulator for processor analogue functions (2.5 V at 10 mA)
– 1 Low-drop output regulator for auxiliary devices (1.5 V, 1.8 V, 2.5 V, 2.8 V at
150 mA)
● USB OTG module
– Full and low speed USB OTG transceiver
– 1 Linear regulators (3.1 V at 40 mA) supplying transceiver
– 1 Charge-pump (5 V at 100 mA) supplying VBUS line of the USB cable
● Mass memory cards (SD/MMC/SDIO)
– 1 Linear regulator (1.8 V, 2.85 V, 3 V at 150 mA)
– Level shifter
● Miscellaneous
– 32 kHz control for multimedia processor
– Processor supply monitoring
– Processor reset control
– 2 Serial I2C interfaces
Figure 1. Typical mobile multimedia system
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