STW4811MBRASLASHLF datasheet(2/86 Pages) STMICROELECTRONICS

2 / 86 page

August 2008

Rev 3

1/85

STw4811M

STw4811N

Power management for multimedia processors

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:

2.5V - 10mA

– 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

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.

6x6x1.2mm

0.5mm pitch

TFBGA 84

4.6x4.6x1.0mm

0.4mm pitch

VFBGA 84

STw4811

STW4811MBRA/LF Folha de dados(PDF) 2 Page - STMicroelectronics

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