RT9728BHGE

$1.05

Description：IC PWR SWITCH P-CHAN 1:1 SOT23-6
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:330ffa5f95d3 Category: Power Distribution Switches, Load Drivers Brand: Richtek USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC PWR SWITCH P-CHAN 1:1 SOT23-6
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Switch Type：USB Switch
Number of Outputs：1
Ratio - Input:Output：1:01
Output Configuration：High Side
Output Type：P-Channel
Interface：On/Off
Voltage - Load：2.5V ~ 5.5V
Voltage - Supply (Vcc/Vdd)：Not Required
Current - Output (Max)：1.8A
Rds On (Typ)：120mOhm
Input Type：Non-Inverting
Features：-
Fault Protection：Current Limiting (Adjustable), Over Temperature, Reverse Current, UVLO
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Supplier Device Package：SOT-23-6
Package / Case：SOT-23-6
Grade：-
Qualification：-

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RT9728BHGE

Overview

The RT9728BHGE is a single-channel P-channel power switch IC designed for load distribution applications. It supports an input voltage range of 2.5V to 5.5V and delivers a maximum output current of 1.8A. The device features a typical on-resistance of 120mΩ. Key protection mechanisms include adjustable current limiting, over-temperature protection, reverse current blocking, and under-voltage lockout (UVLO). It operates within a junction temperature range of -40°C to +125°C and is housed in a compact SOT-23-6 surface-mount package.

Feature Summary

Integrates adjustable current limit functionality for precise load management
Provides comprehensive fault protection including over-temperature and reverse current blocking
Features low on-resistance for efficient power delivery in high-current scenarios

Applications

USB port power switching and protection
Load distribution in portable electronic devices
High-side switching for peripheral loads

Procurement Notes

Verify the specific suffix 'BHGE' against the manufacturer's official datasheet to confirm pinout, tolerance, and packaging specifications. Ensure compatibility with the target PCB footprint and thermal requirements. Confirm RoHS compliance status and moisture sensitivity level (MSL) ratings prior to assembly integration to prevent handling damage during reflow soldering processes.

Selection Notes

Select this component when a single-channel high-side switch with adjustable current limiting is required. It is suitable for applications needing robust protection against short circuits and thermal overload within a 5.5V system. Consider the SOT-23-6 package size constraints and the need for external components if precise current threshold adjustment is necessary beyond standard factory settings.

Part Context

This part belongs to the Richtek RT9728 series of power switches. It is specifically engineered for USB and general load distribution tasks where space efficiency and reliable fault protection are critical. The device complements other PMIC solutions by providing dedicated channel control with integrated safety features.