TPS25921LD

Current Regulation/Management Overview

The TPS25921LD is a hot-swap voltage controller manufactured by Texas Instruments, designed for single-channel power distribution. It operates within an input voltage range of 4.5 V to 18 V and supports load currents from 0.4 A to 1.6 A. The device features a typical on-resistance of 90 mΩ and draws a quiescent current of 410 µA. It is housed in an SOIC-8 surface-mount package and functions across a temperature range of -40°C to +85°C.

Current Regulation/Management Feature Summary

• Integrates intelligent control for high-side N-channel MOSFETs with near-constant output rise times to manage inrush current.
• Provides programmable fault detection capabilities including input undervoltage lockout with hysteresis and overvoltage protection.
• Supports remote on/off control via an enable input and latches off during persistent fault conditions.

Current Regulation/Management Applications

• Industrial equipment power distribution
• Telecommunications infrastructure protection
• Embedded system board-level power switching

Current Regulation/Management Procurement Notes

Verify the specific ordering suffix 'LD' corresponds to the tube packaging configuration when sourcing components. Confirm that the selected variant meets the required thermal and electrical specifications for the target application environment. Cross-reference the manufacturer datasheet to ensure compatibility with external MOSFET selection and circuit design requirements.

Current Regulation/Management Selection Notes

Select this component for applications requiring precise control of high-side N-channel MOSFETs within a 4.5 V to 18 V input window. The device is suitable for systems needing programmable delay settings for various fault types and low static current consumption. Ensure the SOIC-8 package footprint aligns with the PCB layout constraints and thermal management strategy.

Current Regulation/Management Part Context

This part belongs to the TPS2592x family of hot-swap controllers from Texas Instruments. These devices are engineered to provide robust protection and controlled power sequencing for sensitive downstream loads. The family offers configurable parameters to adapt to diverse system requirements while maintaining compact form factors.

Current Regulation/Management Replacement Considerations

The TPS25921LDRG4 serves as a reel-packaged alternative within the same functional family. Verify pinout compatibility and parameter alignment before substituting different packaging options or related models in existing designs.