RT9728 Datasheet PDF (1.3A Power Switch)

RT9728 - 1.3A Power Switch

Description

The RT9728 is a cost effective, low voltage, single P-MOSFET high side power switch IC for USB application with a programmable current limit feature.

Low switch-on resistance (typ.120mΩ) and low supply current (typ.

120μA) are realized in this IC.

Features

±10% Current Limit Accuracy @ 1.3A.
Adjustable Current Limit : 75mA to 1.3A (typ. ).
Meet USB Current Limiting Requirements.
Operating Voltage Range : 2.5V to 5.5V.
Reverse Input.
Output Voltage Protection.
Built-in Soft-Start.
120mΩ High Side MOSFET.
120μA Supply Current.
15-kV ESD Protection per IEC 61000-4-2 (With External Capacitance).
Nemko Approved IEC62368-1.
RoHS Compliant and Halogen Free.

Datasheet Details

Part number	RT9728
Manufacturer	Richtek
File Size	178.61 KB
Description	1.3A Power Switch
Datasheet	RT9728 Datasheet
Additional preview pages of the RT9728 datasheet.

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Full PDF Text Transcription

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® RT9728 120mΩ, 1.3A Power Switch with Programmable Current Limit General Description The RT9728 is a cost effective, low voltage, single P-MOSFET high side power switch IC for USB application with a programmable current limit feature. Low switch-on resistance (typ.120mΩ) and low supply current (typ. 120μA) are realized in this IC. The RT9728 offers a programmable current limit threshold between 75mA and 1.3A (typ.) via an external resistor. The ±10% current limit accuracy can be realized for all current limit settings. Besides, a flag output is available to indicate fault conditions to the local USB controller. Furthermore, the chip also integrates an embedded delay function to prevent mis-operation from happening due to high inrush current.

Published: May 27, 2016 |