Power Management (PMIC)

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
LP3855ET-ADJ National Semiconductor
IC REG LINEAR ADJ...
5,670
In-stock
Inquiry
LP2989AIM-5.0 National Semiconductor
LP2989 MICROPOWER/...
5,600
In-stock
Inquiry
LP3966ES-3.3 National Semiconductor
LP3966 3A FAST ULTR...
4,300
In-stock
Inquiry
LP3853ESX-1.8/NOPB National Semiconductor
IC REG LIN 1.8V 3A D...
4,590
In-stock
Inquiry
LP3873ES-2.5 National Semiconductor
LP3873 3A FAST ULTR...
6,410
In-stock
Inquiry
LP3853ES-1.8 National Semiconductor
LP3853 3A FAST ULTR...
7,250
In-stock
Inquiry
LM317AH National Semiconductor
IC REG LIN POS AD...
6,240
In-stock
Inquiry
LM323KSTEEL National Semiconductor
IC REG LINEAR FIX...
2,390
In-stock
Inquiry
LM140LAH-15/883 National Semiconductor
LM140LQML MILITAR...
1,870
In-stock
Inquiry
LM309K STEEL National Semiconductor
IC REG LINEAR 5.05V...
1,200
In-stock
Inquiry
JM38510/10201SCA National Semiconductor
LM723JAN-SP SPACE ...
6,450
In-stock
Inquiry
5962R9951703VXA National Semiconductor
LM117QML-SP SPACE ...
4,780
In-stock
Inquiry
5962R0722961VXA National Semiconductor
IC REG LINEAR ADJ...
7,840
In-stock
Inquiry
LM317LIBP National Semiconductor
IC REG LIN POS AD...
6,240
In-stock
Inquiry
LM2931CMX National Semiconductor
IC REG LIN POS AD...
7,630
In-stock
Inquiry
LM78L15ACM National Semiconductor
IC REG LIN FIXED ...
2,570
In-stock
Inquiry
LP2980IM5-2.8/NOPB National Semiconductor
IC REG LINEAR 2.8V...
4,260
In-stock
Inquiry
LP2951ACMMX-3.0 National Semiconductor
IC REG LIN POS AD...
7,100
In-stock
Inquiry
LP3966ET-1.8/NOPB National Semiconductor
IC REG LINEAR 1.8V...
7,510
In-stock
Inquiry
LM2941T/LB03 National Semiconductor
IC REG LINEAR POS...
1,970
In-stock
Inquiry