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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
LP5904TMX-1.2/NOPB National Semiconductor
LP5904 ULTRALOW-NO...
7,550
In-stock
Inquiry
LM337LZ National Semiconductor
IC REG LIN ADJ NE...
3,120
In-stock
Inquiry
LP3982IMMX-ADJ/NOPB National Semiconductor
IC REG LIN POS AD...
1,110
In-stock
Inquiry
LM78L62ACZ National Semiconductor
IC REG LINEAR FIX...
4,400
In-stock
Inquiry
LP2985AIM5X-3.6/NOPB National Semiconductor
IC REG LINEAR 3.6V...
1,090
In-stock
Inquiry
LM1117MPX-1.8 National Semiconductor
IC REG LINEAR FIX...
6,490
In-stock
Inquiry
LM1117DTX-5.0 National Semiconductor
IC REG LIN FIXED ...
3,120
In-stock
Inquiry
LP2981IM5X-3.6/NOPB National Semiconductor
IC REG LINEAR 3.6V...
2,830
In-stock
Inquiry
LP2985AIM5-3.0 National Semiconductor
LP2985A 150MA LOW-NO...
1,740
In-stock
Inquiry
LM78L15ACZ/NOPB National Semiconductor
LM78L 100-MA FIXED O...
7,710
In-stock
Inquiry
LP8340ILDX-ADJ/NOPB National Semiconductor
IC REG LINEAR POS...
6,170
In-stock
Inquiry
LM1117DTX-5.0/NOPB National Semiconductor
LM1117 SPACE SAVIN...
5,460
In-stock
Inquiry
LP2981IM5-3.3 National Semiconductor
LP2981-N MICROPOWE...
6,610
In-stock
Inquiry
LP2981IM5-5.0 National Semiconductor
LP2981-N MICROPOWE...
1,680
In-stock
Inquiry
LP38511TJ-1.8/NOPB National Semiconductor
IC REG LINEAR 1.8V...
2,610
In-stock
Inquiry
LM2937ET-8.0/NOPB National Semiconductor
LM2937 500 MA LOW DRO...
5,940
In-stock
Inquiry
LM1085IS-12 National Semiconductor
IC REG LINEAR FIX...
1,560
In-stock
Inquiry
LP38691QSDX-5.0/NOPB National Semiconductor
IC REG LINEAR 5V 5...
3,940
In-stock
Inquiry
LM2940CS-9.0/NOPB National Semiconductor
LM2940C 1A LOW DROP...
4,460
In-stock
Inquiry
LP38503TJ-ADJ/NOPB National Semiconductor
IC REG LINEAR POS...
2,710
In-stock
Inquiry