STPMIC1 datasheet(46/140 Pages) STMICROELECTRONICS

部品番号	STPMIC1

部品情報	Highly integrated power management IC for micro processor units

PDF	140 Pages

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メーカー	STMICROELECTRONICS [STMicroelectronics]

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Figure 52. 5 V DC powered application with a USB OTG port and two USB host ports

In this example, the application is powered by a 5 V DC power source (eg: from 5 V AC/DC wall adaptor) and it

supplies a boost converter. When enabled, the boost converter generates a 5.2 V on BSTOUT.

PWR_USB_SW output (VBUSOTG) is connected, in this example, to a USB Type-μAB connector (OTG). It can

alternatively be connected to a USB Type-C connector.

PWR_SW output (SWOUT) is connected, in this example, to one or two USB Type-A connectors (USB host only).

PWR_SW input (SWIN) is connected to the output of the boost converter (BSTOUT).

In this example, the boost is used to regulate VBUS voltage at 5.2 V (to be compatible with USB specification

voltage range [4.75 V;5.5 V]) to compensate the power supply voltage losses (power supply voltage tolerance and

load regulation lose on the printed circuit board).

STPMIC1

USB sub-system examples

DS12792 - Rev 7

page 46/140

STPMIC1 データシート(PDF) 46 Page - STMicroelectronics