| Parameters | 
                                
                                                                                                            
                                            | Factory Lead Time | 
                                            18 Weeks | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            SOT-23-5 Thin, TSOT-23-5 | 
                                        
                                                                            
                                            | Surface Mount | 
                                            YES | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~85°C TA | 
                                        
                                                                            
                                            | Packaging | 
                                            Cut Tape (CT) | 
                                        
                                                                            
                                            | Published | 
                                            2016 | 
                                        
                                                                            
                                            | Feature | 
                                            Load Discharge, Status Flag | 
                                        
                                                                            
                                            | Pbfree Code | 
                                            yes | 
                                        
                                                                            
                                            | Part Status | 
                                            Discontinued | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3  (168 Hours) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            5 | 
                                        
                                                                            
                                            | Terminal Position | 
                                            DUAL | 
                                        
                                                                            
                                            | Terminal Form | 
                                            GULL WING | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            NOT SPECIFIED | 
                                        
                                                                            
                                            | Number of Functions | 
                                            1 | 
                                        
                                                                            
                                            | Supply Voltage | 
                                            5V | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            0.939mm | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            NOT SPECIFIED | 
                                        
                                                                            
                                            | JESD-30 Code | 
                                            R-PDSO-G5 | 
                                        
                                                                            
                                            | Number of Outputs | 
                                            1 | 
                                        
                                                                            
                                            | Output Type | 
                                            N-Channel | 
                                        
                                                                            
                                            | Max Output Current | 
                                            1A | 
                                        
                                                                            
                                            | Supply Voltage-Max (Vsup) | 
                                            6V | 
                                        
                                                                            
                                            | Supply Voltage-Min (Vsup) | 
                                            2.7V | 
                                        
                                                                            
                                            | Interface | 
                                            On/Off | 
                                        
                                                                            
                                            | Output Configuration | 
                                            High Side | 
                                        
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 
                                            Not Required | 
                                        
                                                                            
                                            | Input Type | 
                                            Non-Inverting | 
                                        
                                                                            
                                            | Switch Type | 
                                            USB Switch | 
                                        
                                                                            
                                            | Ratio - Input:Output | 
                                            1:1 | 
                                        
                                                                            
                                            | Voltage - Load | 
                                            2.7V~6V | 
                                        
                                                                            
                                            | Fault Protection | 
                                            Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO | 
                                        
                                                                            
                                            | Output Peak Current Limit-Nom | 
                                            1.1A | 
                                        
                                                                            
                                            | Rds On (Typ) | 
                                            55m Ω | 
                                        
                                                                            
                                            | Built-in Protections | 
                                            OVER CURRENT; THERMAL; UNDER VOLTAGE | 
                                        
                                                                            
                                            | Output Current Flow Direction | 
                                            SINK | 
                                        
                                                                            
                                            | Length | 
                                            2.8955mm | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                                                    
                            
                         
                                                RT9742HGJ5F Overview
Cut Tape (CT) is how it's packaged.This package is included in SOT-23-5 Thin, TSOT-23-5.It has been mounted as Surface Mount on the LED driver.USB Switch is the switch type it owns.Ensure reliable operation by setting the temperature to -40°C~85°C TA.The lighting driver has a total of 1 outputs that are available for use.The LED driving board is powered by a voltage of Not Required.It has a maximum output voltage of N-Channel volts.In terms of features, the LED driving board has Load Discharge, Status Flag.It has a total of 5 terminations.As far as functions are concerned, the lighting driver has 1.The maximum output current is reduced to 1A to meet the operation criteria.Using a voltage of 5V allows for high efficiency.This LED driver is configured to have a maximum supply voltage of 6V (Vsup).A normal operation requires that the supply voltage (Vsup) remain above 2.7V.
RT9742HGJ5F Features
Supplied from 5V
RT9742HGJ5F Applications
There are a lot of Richtek USA Inc. RT9742HGJ5F Power Switches ICs applications. 
- Telecom and Network Systems
 - HDD, SSD
 - Portable GPS Device
 - Various applications equipped with buttons
 - Notebook PC
 - Wireless/Networking Cards
 - Portable Music Players
 - Smartphone and PDA
 - Hard Disk Drives
 - Set-Top Boxes