STW4811MBRASLASHLF datasheet(7/85 Pages) STMICROELECTRONICS

7 / 85 page

STw4811M/STw4811N

Overview

CD00131784

7/85

Overview

The STw4811 power management device has the following features:

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Power management module

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1 step-down converter for processor core (1 V to 1.45 V with 15 steps at 700 mA)

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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

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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)

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1 low-drop output regulator for processor analog functions (2.5 V at 10 mA)

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1 low-drop output regulator for auxiliary devices (1.5 V, 1.8 V, 2.5 V, 2.8 V at

150 mA)

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Auxiliary device

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STw4811M: Vaux OFF at start up

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STw4811N: Vaux ON at start up

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USB OTG module

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Full and low speed USB OTG transceiver

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1 linear regulator 3.1 V supplying transceiver

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1 charge-pump (5 V at 100 mA) supplying VBUS line of the USB cable

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Mass memory cards (SD/MMC/SDIO)

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1 linear regulator (1.8 V, 1.85 V, 2.6 V, 2.7 V, 2.85 V, 3 V, 3.3 V at 150 mA)

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Level shifters

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Miscellaneous

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32 kHz control for multimedia processor

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Processor supply monitoring

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Processor reset control

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2 serial I2C interfaces

STW4811MBRA/LF 数据表(PDF) 7 Page - STMicroelectronics

STW4811MBRA/LF 数据表(HTML) 7 Page - STMicroelectronics

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