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Product Detailed Parameters
- Description：IC PWR SWITCH P-CHAN 1:1 SOT25
- Series：-
- Mfr：Diodes Incorporated
- 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：2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：Not Required
- Current - Output (Max)：500mA
- Rds On (Typ)：95mOhm
- Input Type：Non-Inverting
- Features：Load Discharge, Status Flag
- Fault Protection：Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-25
- Package / Case：SC-74A, SOT-753
- Grade：-
- Qualification：-
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Overview
The AP2151DWG-7 is a single-channel high-side power switch IC from Diodes Incorporated, designed for USB power distribution applications. It operates within a supply voltage range of 2.7 V to 5.5 V and delivers a continuous output current of 1 A with an 800 mA limit. The device features a maximum on-resistance of 115 mΩ, ensuring efficient power delivery. Key timing specifications include a maximum turn-on time of 50 µs and a maximum idle time of 50 µs. It is housed in a SOT-25-5 surface-mount package and supports operation across a temperature range of -40°C to +85°C.
Feature Summary
- Single-channel high-side configuration for dedicated load protection
- Integrated current limiting capability to safeguard downstream circuits
- Low on-resistance design for minimized power loss and heat generation
Applications
- USB port power switching and distribution
- Peripheral device power management
- Overcurrent protection in consumer electronics
Procurement Notes
Verify the specific suffix 'WG' against the manufacturer's official datasheet to confirm the exact package type and tape-and-reel specifications. Ensure that the ordering information matches the required SOT-25-5 form factor and environmental compliance standards before finalizing procurement orders.
Selection Notes
Select this component when a single-channel solution with a 1 A continuous current rating is required for 3.3 V or 5 V systems. Consider the 115 mΩ on-resistance for thermal performance and verify that the 50 µs switching speeds align with system timing requirements compared to faster alternatives.
Part Context
This part belongs to the AP2151 series of USB power switches manufactured by Diodes Incorporated. The series provides various channel counts and current ratings tailored for portable electronics. The AP2151DWG-7 specifically addresses applications requiring robust single-channel protection with defined current limits and low impedance characteristics.
Replacement Considerations
Cross-reference with other Diodes Incorporated parts such as the AP2151AW-7 for lower current variants or the AP2171DWG-7 if higher current capacity is needed. Verify pin compatibility and electrical parameters before substituting.
