TPS259474LRPWR

Current Regulation/Management Overview

The TPS259474LRPWR is a single-channel hot-swap voltage controller from the Texas Instruments TPS25947 series, functioning as an electronic fuse. It supports input voltages from 2.7 V to 23 V and delivers a continuous current of up to 5.5 A with a typical on-resistance of 28 mΩ. The device operates within a temperature range of -40°C to +125°C and features a quiescent current of 445 µA. Packaged in a VQFN-HR-10 (2x2 mm) surface-mount format, it includes integrated power-fail detection and is compatible with the TPS25947EVM evaluation module.

Current Regulation/Management Feature Summary

• Integrates high-side N-channel MOSFET for controlled power-up sequencing
• Provides programmable current limiting and thermal protection
• Includes power-fail detection for system monitoring

Current Regulation/Management Applications

• Smart electricity meters
• USB-Type C systems requiring fast role swap linear ORing
• Industrial backplane power distribution

Current Regulation/Management Procurement Notes

Verify the specific suffix 'LRPWR' against the manufacturer datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with the TPS25947EVM if development support is required. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly to maintain component integrity during manufacturing.

Current Regulation/Management Selection Notes

Select this component for applications requiring robust overcurrent protection and controlled ramp-up times within a 23-V maximum input limit. The low on-resistance minimizes conduction losses, while the compact VQFN-HR-10 package suits space-constrained designs. Evaluate the 5.5-A current capability against peak load requirements to ensure adequate headroom.

Current Regulation/Management Part Context

This part belongs to the TPS25947 family of hot-swap controllers designed for reliable power management. It shares functional similarities with variants like the TPS259474ARPWR but differs in specific ordering suffixes that may indicate package or testing variations. The series is categorized under PMICs and Controllers & Switches.

Current Regulation/Management Replacement Considerations

The TPS259474ARPWR is a documented variant within the same series offering identical electrical characteristics. Verify pinout and package dimensions before substitution to ensure mechanical compatibility.