TPS2057ADG4

Power Distribution Switches, Load Drivers Overview

The TPS2057ADG4 is a triple-channel high-side power distribution switch manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 5.5 V and is housed in a 16-pin SOIC-Narrow package. The device provides three independent outputs with a continuous current rating of 250 mA per channel and a fixed current limit of 500 mA. Key electrical characteristics include a maximum on-resistance of 100 mΩ, a maximum turn-on time of 20 ms, and a maximum turn-off time of 40 ms. It supports an operating temperature range from 0°C to +85°C.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates three independent high-side switches for multi-rail power distribution
• Provides fault reporting capabilities via dedicated status flag pins
• Features active-low enable inputs for flexible control logic integration
• Includes built-in protection against overcurrent, thermal overload, and undervoltage lockout

Power Distribution Switches, Load Drivers Applications

• USB hub power switching and port management
• Peripheral device power sequencing in embedded systems
• Industrial control board power distribution
• Consumer electronics power rail isolation

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix 'DG4' indicates lead-free construction and RoHS compliance when sourcing. Confirm the package type matches the design requirements, as this variant uses the SOIC-Narrow form factor. Ensure the ordering part number aligns with the tube packaging configuration typically associated with the 'A' designation in the base model series.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when a triple-channel solution is required for low-voltage applications up to 5.5 V. It is suitable for designs needing precise current limiting at 500 mA without external sensing resistors. Consider the 100 mΩ on-resistance for efficiency calculations and ensure the PCB layout accommodates the 16-pin narrow SOIC footprint for adequate thermal dissipation.

Power Distribution Switches, Load Drivers Part Context

This device belongs to the TPS205x family of USB power switches designed for robust power distribution. It complements other variants like the TPS2056 (dual channel) and TPS2058 (quad channel) within the same product line. The family shares common interface standards and protection features, allowing for scalable design architectures across different channel count requirements.

Power Distribution Switches, Load Drivers Replacement Considerations

The TPS2057ADR serves as the reel-pack alternative to the tube-packed TPS2057AD. Verify pin compatibility if substituting with other TPS205x family members, noting that channel counts differ between dual, triple, and quad configurations.