The EVB_RT9742AGJ5F is a cost-effective, low-voltage; single N-MOSFET high-side Power Switch IC reference design for USB application. The RT9742A integrates an over-current protection circuit, a short fold back circuit, a thermal shutdown circuit and an under-voltage lockout circuit for overall protection. 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 miss-operation from happening due to inrush-current. The RT9742A is an ideal solution for USB power supply and can support flexible applications since it is available in TSOT-23-5 (FC) package.
Product Features
Reverse Blocking Current
Thermal Protection with Fold-back
UL Approved-E219878
Nemko Approved-NO87949
| Manufacturer | Richtek USA Inc. |
|---|---|
| Category | Power Management |
| Sub-Category | Load or Power Distribution Switches |
| Eval Board Part Number | EVB_RT9742AGJ5F-ND |
| Eval Board Supplier | Richtek USA Inc. |
| Eval Board |
Board not Stocked
|
| Current Out |
3 A
|
| Voltage In |
2.7 ~ 6 V
|
| Features |
Fault Indication
Over Current Protection Short Circuit Protection Thermal Protection Under Voltage Protection, Brown-Out |
| On Resistance (Typ) @ Vin |
55 mΩ @ 5 V
|
| Standby Current [Typical] |
100 nA
|
| Power Dissipation (Max) |
790 mW
|
| Quiescent Current [Typical] |
30 µA
|
| Component Count + Extras |
5 + 11
|
| Application / Target Market |
Handheld games
Tablets USB Powered Devices Wearable Devices White Goods |
| Design Author |
Richtek USA Inc.
|
| Main I.C. Base Part |
RT9742
|
| Standby Current [Maximum] |
1 µA
|
| Quiescent Current [Maximum] |
40 µA
|
| Date Created By Author | 2018-06 |
| Date Added To Library | 2022-06 |
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