00:00Fixing dead power rails needs good load switches without spending much
00:04Tested market, found best cheap options for PCB repair bench
00:08Under 5 bucks, reliable silicon, ready for work
00:13First pick, TPS27081AD DCR in SOT23-6, marked AUA
00:1910-pack costs 330
00:22High side switch handles up to 8 volts, built-in slew rate control stops in rush current blowing caps
00:29Solid 4.9 rating with thousands sold makes this no-brainer for daily repairs
00:36Next, TPS22918DBVR, marked 13 MW
00:396 bucks 2 cents for 10, slightly over 5 target but worth look
00:44Handles 2 amps at 5.5 volts with ultra-low on resistance
00:49Keeps voltage drops tiny on sensitive logic lines
00:52Third, FTC6331L, classic SOT23-6 integrated switch
00:58Dirt cheap at 290 for 10-pack
01:02Combines P-channel MOSFET and N-channel driver in one package
01:05Perfect direct replacement for older laptop and tablet power sequencing faults
01:13Fourth, TPS22917DBVR, marked 1 IAF
01:1510-pack runs 413
01:18Best feature is ultra-low leakage current and quick output discharge
01:22Great fix for battery-powered gear where phantom draw kills charge overnight
01:29Last, TPS22919DCKR in tiny SC70-6, marked 1 CS
01:34$4 flat for 10 pieces
01:36Built-in reverse current blocking protects main rails from back-feeding faults
01:42Small footprint saves modern tightboard layouts, backed by 4.9 rating
01:47Part links down in description
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