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R5540K004B-TR
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Product Detailed Parameters
- Description：NCH LOAD SWITCH IC
- Series：*
- Mfr：Nisshinbo Micro Devices Inc.
- Package：Tape & Reel (TR)
- Switch Type：-
- Number of Outputs：-
- Ratio - Input:Output：-
- Output Configuration：-
- Output Type：-
- Interface：-
- Voltage - Load：-
- Voltage - Supply (Vcc/Vdd)：-
- Current - Output (Max)：-
- Rds On (Typ)：-
- Input Type：-
- Features：-
- Fault Protection：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Grade：-
- Qualification：-
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Overview
The R5540K004B-TR is a low-side load switch IC manufactured by Nisshinbo Micro Devices. It operates within a supply voltage range of 800 mV to 3.6 V and supports a continuous output current of 450 mA with a current limit of 700 mA. The device features a maximum on-resistance of 180 mOhms and dissipates up to 300 mW of power. It functions reliably across an operating temperature range from -40°C to +85°C. The component is housed in a DFN-PLP-1010-4F-4 package and is supplied in reel packaging.
Feature Summary
- Provides single-channel low-side power switching capability for load distribution applications.
- Integrates current limiting protection to safeguard connected loads against overcurrent conditions.
Applications
- Power distribution in portable electronic devices
- Load switching in battery-powered systems
- Peripheral power control in mobile communication equipment
Procurement Notes
Verify the specific suffix B against the manufacturer's official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the DFN-PLP-1010-4F-4 package dimensions align with your PCB footprint. Confirm thermal management strategies are adequate for the specified power dissipation limits under your intended operating conditions.
Selection Notes
Select this component when a low-side switch with moderate current capacity is required for voltages below 3.6 V. The 180 mOhm on-resistance offers a balance between conduction loss and cost. Consider the DFN-PLP-1010-4F-4 package size constraints and verify that the 450 mA continuous current rating meets the peak and steady-state demands of the target load circuit.
Part Context
This part belongs to the R5540K series of load switches from Nisshinbo Micro Devices. The series focuses on compact, low-voltage power distribution solutions suitable for space-constrained portable electronics. The R5540K004B-TR variant specifically denotes the low-side configuration with defined current limits and resistance values within this product family.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official cross-reference guides or authorized distributor databases for verified alternatives before implementation.
