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Power Management (PMIC)

Power Management Pmic covers the ICs that turn a raw rail into something a board can actually use: buck and boost converters, LDO regulators, battery chargers, load switches, supervisors, hot-swap controllers, gate drivers, and multi-rail PMICs for processors. They show up in phones and routers, but also in PLCs, motor drives, servers, patient monitors, meters, and vehicle modules where the supply has to behave through load dumps, brownouts, and long idle periods. When buyers source this category, the part number is only the start. They check input range, output current with real thermal margin, quiescent current, efficiency at light load, switching frequency for EMI, feedback tolerance, package and exposed pad, pin-compatible alternates, temperature grade, and whether the reel is original factory packaging. A common trade-off is price versus risk: a broker lot can save money on paper, but mixed date codes or missing traceability can stop a line during audit, while an authorized or well-documented channel may cost more and still be the cheaper decision. Lead time matters too. Automotive and industrial grades often carry allocation or longer NCNR terms, so a commercial-temp substitute is tempting until qualification, reliability data, and end-customer approval enter the discussion. For multi-rail parts, read the sequencing, NVM defaults, and errata before committing, because a PMIC that boots a demo board can still misbehave with your SoC and firmware. You can check current stock and request a quote at icxing.com.

Frequently Asked Questions

How do I lower counterfeit risk when buying Power Management Pmic parts?

Ask for traceability to the original manufacturer or authorized channel, plus photos of labels, reels, and date codes before payment. For high-value runs, require X-ray or decapsulation support and a written counterfeit avoidance process. If the seller cannot explain lot history, treat the price as a warning sign.

What should I confirm before substituting a different package or grade?

Match the footprint, pinout, thermal pad size, and height, then confirm temperature grade and moisture sensitivity level. A QFN with the same pin count can still have a different pad pitch, and automotive grade usually changes qualification paperwork rather than basic electrical limits.

Why do PMIC quotes vary so much on lead time and price?

Multi-rail PMICs are often built to order and can be tied to allocation, EOL transitions, or a specific processor design win. Tolerance, temperature range, and reel quantity also move price, so compare the exact suffix, date code window, and NCNR terms instead of the headline number.

Image Part Manufacturer Description Stock Action
LP3971SQX-P55A/NOPB Texas Instruments
IC PMU FOR APP PR...
5,150
In-stock
Inquiry
LP3971SQX-W416/NOPB Texas Instruments
IC PMU FOR APP PR...
1,630
In-stock
Inquiry
LP3972SQX-A413/NOPB Texas Instruments
IC PMU FOR APP PR...
5,720
In-stock
Inquiry
LP3972SQX-A514/NOPB Texas Instruments
IC PMU FOR APP PR...
1,730
In-stock
Inquiry
LP3972SQX-E514/NOPB Texas Instruments
IC PMU FOR APP PR...
4,490
In-stock
Inquiry
LP3972SQX-I514/NOPB Texas Instruments
IC PMU FOR APP PR...
2,240
In-stock
Inquiry
LP5550SQX/NOPB Texas Instruments
IC ENERGY MGMNT S...
3,760
In-stock
Inquiry
LP5551SQX/NOPB Texas Instruments
IC ENERGY MGMNT S...
4,070
In-stock
Inquiry
TPS2145IPWPR Texas Instruments
IC ADJ LDO/DUAL S...
5,950
In-stock
Inquiry
TPS40120PWRG4 Texas Instruments
IC PROG FEEDBK DI...
3,010
In-stock
Inquiry
TPS65050RSMTG4 Texas Instruments
IC PWR MGMT 6CH W/...
3,210
In-stock
Inquiry
TPS65051RSMRG4 Texas Instruments
IC PWR MGMT 6CH W/...
6,050
In-stock
Inquiry
TPS65051RSMTG4 Texas Instruments
IC PWR MGMT 6CH W/...
5,590
In-stock
Inquiry
TPS65053RGERG4 Texas Instruments
IC POWER MANAGEM...
1,840
In-stock
Inquiry
TPS65053RGETG4 Texas Instruments
IC POWER MANAGEM...
5,420
In-stock
Inquiry
TPS65054RSMR Texas Instruments
IC PWR MGMT 6CH W/...
6,560
In-stock
Inquiry
TPS65054RSMTG4 Texas Instruments
IC PWR MGMT 6CH W/...
1,580
In-stock
Inquiry
TPS65056RSMR Texas Instruments
IC PWR MGMT 6CH W/...
1,220
In-stock
Inquiry
TPS65167RHARG4 Texas Instruments
IC LCD BIAS TFT-L...
7,350
In-stock
Inquiry
TPS65167RHAT Texas Instruments
IC LCD BIAS TFT-L...
4,120
In-stock
Inquiry