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
LP3856ET-1.8 National Semiconductor
IC REG LINEAR 1.8V...
4,800
In-stock
Inquiry
LP3853ES-5.0 National Semiconductor
IC REG LIN 5V 3A DD...
6,960
In-stock
Inquiry
LM117K-SMD National Semiconductor
IC REG LINEAR 1 OU...
2,210
In-stock
Inquiry
LM2940J-8.0/883 National Semiconductor
IC REG LINEAR FIX...
1,720
In-stock
Inquiry
LM1577K-15/883 National Semiconductor
IC REG LINEAR SMP...
5,760
In-stock
Inquiry
LP3985ITL-285 National Semiconductor
IC REG LINEAR FIX...
1,620
In-stock
Inquiry
LP3988IMFX-3.0/NOPB National Semiconductor
LP3988 MICROPOWER,...
7,210
In-stock
Inquiry
LP5990TM-1.3/NOPB National Semiconductor
LP5990 MICROPOWER ...
6,790
In-stock
Inquiry
LP3995ILDX-2.8/NOPB National Semiconductor
IC REG LINEAR 2.8V...
1,130
In-stock
Inquiry
LP3985IM5X-2.8/NOPB National Semiconductor
IC REG LINEAR 2.8V...
7,340
In-stock
Inquiry
LP2985IM5-1.8 National Semiconductor
LP2985 150MA LOW-NOI...
3,860
In-stock
Inquiry
LP2985AITP-3.0/NOPB National Semiconductor
LP2985A 150MA LOW-NO...
2,850
In-stock
Inquiry
LP3988IMFX-2.5/NOPB National Semiconductor
IC REG LINEAR 2.5V...
5,810
In-stock
Inquiry
LP5900TL-2.85 National Semiconductor
LP5900 150MA ULTRALO...
4,570
In-stock
Inquiry
LP5904TME-1.2/NOPB National Semiconductor
IC REG LINEAR 1.2V...
2,880
In-stock
Inquiry
LP2985AIM5X-1.8/NOPB National Semiconductor
IC REG LINEAR 1.8V...
5,030
In-stock
Inquiry
LP5900TL-2.0/NOPB National Semiconductor
IC REG LINEAR 2V 1...
5,940
In-stock
Inquiry
LP3996SD-2533 National Semiconductor
IC REG LINEAR FIX...
6,620
In-stock
Inquiry
LM1117MP-2.5 National Semiconductor
IC REG LINEAR FIX...
2,670
In-stock
Inquiry
LP3999ITL-3.3 National Semiconductor
IC REG LINEAR FIX...
7,220
In-stock
Inquiry