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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
LP3875EMPX-ADJ/NOPB National Semiconductor
IC REG LIN POS AD...
2,640
In-stock
Inquiry
LP3999ITL-1.5 National Semiconductor
IC REG LINEAR FIX...
2,990
In-stock
Inquiry
LM2941T/LB08 National Semiconductor
IC REG LINEAR POS...
6,070
In-stock
Inquiry
LM337IMP/NOPB National Semiconductor
IC REG LIN NEG AD...
6,360
In-stock
Inquiry
LP3985IM5-3.2/NOPB National Semiconductor
LP3985 MICROPOWER,...
7,890
In-stock
Inquiry
LP38691SD-5.0/NOPB National Semiconductor
LP38691 500MA LOW DRO...
7,680
In-stock
Inquiry
LP38842T-0.8 National Semiconductor
IC REG LINEAR 0.8V...
6,310
In-stock
Inquiry
LM2990T-15/NOPB National Semiconductor
LM2990 1-A, NEGATIVE...
1,400
In-stock
Inquiry
LP3991TL-2.0/NOPB National Semiconductor
IC REG LINEAR 2V 3...
7,230
In-stock
Inquiry
LP3995ITL-1.8/NOPB National Semiconductor
LP3995 MICROPOWER ...
3,880
In-stock
Inquiry
LP3881ES-1.2 National Semiconductor
IC REG LINEAR 1.2V...
5,320
In-stock
Inquiry
LM317LID National Semiconductor
IC REG LIN POS AD...
5,650
In-stock
Inquiry
LP38502SDX-ADJ/NOPB National Semiconductor
IC REG LINEAR POS...
3,490
In-stock
Inquiry
LM9036MX-5.0/NOPB National Semiconductor
LM9036 ULTRA-LOW QU...
7,300
In-stock
Inquiry
LM1084IT-5.0/NOPB National Semiconductor
LM1084 5A FIXED / AD...
7,220
In-stock
Inquiry
LM1085ISX-3.3/NOPB National Semiconductor
LM1085 3A FIXED / AD...
6,440
In-stock
Inquiry
LP2951ACMMX/NOPB National Semiconductor
IC REG LIN POS AD...
6,550
In-stock
Inquiry
LP38856S-0.8 National Semiconductor
IC REG LIN 0.8V 3A D...
3,040
In-stock
Inquiry
LP5951MF-1.5 National Semiconductor
IC REG LINEAR 1.5V...
4,590
In-stock
Inquiry
LP38502SDE-ADJ/NOPB National Semiconductor
LP38502-ADJ 1.5A FLEX...
3,320
In-stock
Inquiry