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Analog Devices MAX1901EAI+ — Analog & Data Acquisition

MAX1901EAI+ Dual-Output Notebook Power Controller, 28-SSOP

MPNMAX1901EAI+
End of Life

Maxim Integrated MAX1901EAI+, dual-output PWM controller for notebook power systems, 4.2V to 30V input, 2.5V to 5V output, -40°C to 85°C, 28-SSOP package, Tube.

$13.77Ref. price · indicative, final on quote
Analog Devices MAX1901EAI+ datasheet (PDF)
Packaging28-SSOP (0.209", 5.30mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX1901EAI+ specifications
ParameterValue
MountingSurface Mount
Voltage - input4.2V ~ 30V
Voltage - output2.5V ~ 5V
I/O channels2
Operating temperature-40°C ~ 85°C
PackageTube
ApplicationsController, Notebook Power System
Case28-SSOP (0.209\", 5.30mm Width)

Product details

Temperature grade and operating environment

Rated for -40°C to 85°C, this controller handles industrial ambient conditions, not just the climate-controlled office. That means it can sit in a ruggedized laptop, a test instrument, or a portable base station without derating for heat soak. The surface-mount SSOP package is standard for reflow assembly; no special handling beyond normal MSL precautions.

Sourcing and lifecycle

Listed as Active on the lifecycle record and RoHS3 compliant. No end-of-life notice or last-time-buy window is flagged, so this part is safe to qualify into a new BOM or sustain an existing production line.

Frequently asked questions

What is MAX1901EAI+ used for?

It is a dual-output PWM controller designed for notebook power systems, regulating two output rails from a battery input of 4.2V to 30V down to 2.5V–5V. Typical application is generating the system and core voltages in a laptop motherboard.

What is the difference between MAX1901EAI+ and MAX1901EAI?

The MAX1901EAI+ is the lead-free / RoHS-compliant version of the MAX1901EAI. Electrically and functionally identical — same dual-output controller, same 28-SSOP package, same temperature range. The '+' suffix indicates RoHS3 compliance.

Can MAX1901EAI+ be used in a notebook power system with lithium-ion batteries?

Yes. The 4.2V to 30V input range covers single-cell (4.2V) through multi-cell Li-ion stacks, and the dual outputs are sized for the system bus and CPU core rails typical in a notebook.