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RT9746WSC
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Product Detailed Parameters
- Description：IC PWR REG OVP W/ PTVS 12WLCSP
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Type：General Purpose
- Number of Outputs：1
- Ratio - Input:Output：1:01
- Output Configuration：-
- Output Type：-
- Interface：-
- Voltage - Load：3V ~ 6.7V
- Voltage - Supply (Vcc/Vdd)：Not Required
- Current - Output (Max)：-
- Rds On (Typ)：35mOhm
- Input Type：Non-Inverting
- Features：Status Flag
- Fault Protection：Current Limiting (Fixed), Over Temperature, Over Voltage, UVLO
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：12-WLCSP (1.92x1.27)
- Package / Case：12-UFBGA, WLCSP
- Grade：-
- Qualification：-
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Overview
The RT9746WSC is an over-voltage protection device manufactured by Richtek USA Inc. It integrates a low on-resistance internal FET with a PTVS diode to safeguard downstream components from voltage surges. The device features a typical RON of 35mΩ and supports surge protection up to specified limits. It is housed in a compact 12-WLCSP package, measuring 1.92x1.27 mm, suitable for surface-mount applications.
Feature Summary
- Integrates over-voltage protection with a low on-resistance internal FET
- Includes PTVS diode for surge protection capabilities
- Compact WLCSP packaging for space-constrained designs
Applications
- Portable electronic devices requiring input protection
- USB port protection circuits
- Consumer electronics power input stages
Procurement Notes
Verify the specific suffix and package variant against the official datasheet before ordering. Confirm surge handling ratings match system requirements. Ensure compatibility with existing PCB footprint dimensions. Check RoHS compliance status for regulatory adherence. Validate supplier authenticity through authorized channels.
Selection Notes
Select this component when integrated OVP and surge protection are required in a minimal footprint. Consider the 35mΩ on-resistance for efficiency needs. Evaluate the WLCSP size constraints against board layout. Compare surge energy absorption capabilities with application stress levels. Ensure interface compatibility with upstream power sources.
Part Context
This part belongs to Richtek's PMIC portfolio, specifically within power distribution switches and load drivers. It addresses the need for robust input protection in portable systems. The integration of FET and TVS reduces component count compared to discrete solutions.
Replacement Considerations
RT9746P-A is listed as an alias. Verify pinout and electrical characteristics equivalence before substitution. No other direct substitutes are confirmed in public documentation.
