Electronic Fuse Regulator 5.3A 20-WQFN (3x4)
The TPS25940LRVCR is a compact eFuse (electronic fuse) power management IC from Texas Instruments
designed to provide advanced power-path protection and load management for systems such as SSDs, servers, storage devices, and embedded electronics. It integrates protection features like overcurrent limiting, reverse current blocking, overvoltage protection, and controlled startup sequencing into a single chip.
Wide input voltage range: 2.7 V to 18 V
Adjustable current limit: 0.6 A to 5.3 A
Low ON resistance: 42 mΩ typical
True reverse current blocking using back-to-back MOSFETs
Programmable output slew rate (dV/dt control) for inrush current management
Overvoltage and undervoltage protection
Fault and Power-Good outputs for system monitoring
Current monitor (IMON) output
Low-power DevSleep support for SSD applications
Fast reverse voltage shutdown (~1 µs)
Operating temperature: −40°C to +125°C junction temperature
Available in a compact 20-pin WQFN package
Typical Applications
PCIe / SATA / SAS SSDs and HDDs
Enterprise servers and storage systems
RAID controller cards
Smart load switches
Set-top boxes and gaming systems
Backup power and holdup capacitor systems
Component Category
This component belongs to:
Power Management IC (PMIC)
More specifically: eFuse / Hot-swap / Load Switch IC
Package Information
Package type: 20-WQFN (3 mm × 4 mm)
Mounting type: Surface Mount (SMD)
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