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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
REG113NA-3/250 Texas Instruments
IC REG LINEAR 3V 4...
5,430
In-stock
Inquiry
TPS77301DGK Texas Instruments
IC REG LIN POS AD...
1,600
In-stock
Inquiry
LM2940S-8.0/NOPB Texas Instruments
IC REG LIN 8V 1A DD...
3,760
In-stock
Inquiry
TPS77333DGK Texas Instruments
IC REG LINEAR 3.3V...
3,660
In-stock
Inquiry
LM2990SX-5.0 Texas Instruments
IC REG LIN -5V 1.8A ...
1,680
In-stock
Inquiry
LM1086CS-2.5/NOPB Texas Instruments
IC REG LIN 2.5V 1.5A...
1,950
In-stock
Inquiry
LM2937ET-12 Texas Instruments
IC REG LINEAR 12V ...
3,700
In-stock
Inquiry
LM2941S/NOPB Texas Instruments
IC REG LIN POS AD...
4,680
In-stock
Inquiry
LM2937ES-12/NOPB Texas Instruments
IC REG LIN 12V 500MA...
4,300
In-stock
Inquiry
TPS77633PWP Texas Instruments
IC REG LIN 3.3V 500M...
6,470
In-stock
Inquiry
LP38858S-1.2/NOPB Texas Instruments
IC REG LINEAR 1.2V...
6,330
In-stock
Inquiry
TPS79601DRBT Texas Instruments
IC REG LINEAR POS...
1,350
In-stock
Inquiry
TPS7A4518DCQT Texas Instruments
IC REG LINEAR 1.8V...
5,200
In-stock
Inquiry
TPS7A5301RPST Texas Instruments
IC REG LINEAR POS...
6,970
In-stock
Inquiry
TPS7A7002DDA Texas Instruments
IC REG LIN POS AD...
6,670
In-stock
Inquiry
REG103UA-A/2K5 Texas Instruments
IC REG LIN POS AD...
3,330
In-stock
Inquiry
LP38842S-1.2/NOPB Texas Instruments
IC REG LINEAR 1.2V...
1,250
In-stock
Inquiry
TPS7A7300RGWT Texas Instruments
IC REG LIN POS AD...
5,630
In-stock
Inquiry
TPS7A5401RPST Texas Instruments
IC REG LINEAR POS...
1,440
In-stock
Inquiry
LP3873ESX-3.3/NOPB Texas Instruments
IC REG LIN 3.3V 3A D...
4,330
In-stock
Inquiry