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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
LM5021MM-2 National Semiconductor
IC OFFLINE SW MUL...
4,310
In-stock
Inquiry
LM3620M5-4 National Semiconductor
IC BATT CHG LI-IO...
7,520
In-stock
Inquiry
LP3918TLX/NOPB National Semiconductor
IC BATT CHG LI-IO...
3,810
In-stock
Inquiry
LM3420AM5-8.2 National Semiconductor
IC BATT CHG PWR S...
5,420
In-stock
Inquiry
LP3946LD National Semiconductor
IC BATT CHG PWR M...
7,790
In-stock
Inquiry
LM3620M5X-4 National Semiconductor
IC BATT CHG LI-IO...
5,170
In-stock
Inquiry
LP3947ISD-09 National Semiconductor
IC BATT CHG PWR S...
6,890
In-stock
Inquiry
LP3922RLX-B/NOPB National Semiconductor
IC BATT CHG USB A...
7,000
In-stock
Inquiry
LP3922RL-B/NOPB National Semiconductor
IC BATT CHG USB A...
7,340
In-stock
Inquiry
LM3622AM-4.1/NOPB National Semiconductor
IC BATT CHG LI-IO...
2,630
In-stock
Inquiry
LM3420M5-8.2 National Semiconductor
IC BATT CHG PWR S...
3,180
In-stock
Inquiry
LM3621M National Semiconductor
IC BATT CHG CONTR...
2,680
In-stock
Inquiry
LP3918TL-A/NOPB National Semiconductor
IC BATT CHG PWR S...
2,950
In-stock
Inquiry
LP3918TL/NOPB National Semiconductor
IC BATT CHG PWR S...
4,120
In-stock
Inquiry
LM3658SD National Semiconductor
IC BATT CHG PWR S...
5,360
In-stock
Inquiry
LM3658SDX National Semiconductor
IC BATT CHG PWR S...
7,570
In-stock
Inquiry
LM334SMX-NS National Semiconductor
ANALOG CIRCUIT, 1...
7,440
In-stock
Inquiry
LM3815M-7.0 National Semiconductor
POWER SUPPLY SUP...
6,900
In-stock
Inquiry
LM3815M-1.0 National Semiconductor
POWER SUPPLY SUP...
1,670
In-stock
Inquiry
LM334SM National Semiconductor
ANALOG CIRCUIT, 1...
1,800
In-stock
Inquiry