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Analog Devices MAX8556ETE+T — Analog & Data Acquisition

MAX8556ETE+T LDO Regulator, 4A Adjustable, 16-TQFN

MPNMAX8556ETE+T
End of Life

Analog Devices MAX8556ETE+T, linear voltage regulator IC, positive adjustable output, 1 output, 4A, 16-WQFN Exposed Pad, surface mount, -40°C to 85°C.

$9.47Ref. price · indicative, final on quote
Packaging16-WQFN Exposed Pad
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

MAX8556ETE+T Technical Specifications
ParameterValue
Output typeAdjustable
Mounting typeSurface Mount
Voltage - input3.6V
Voltage dropout0.2V @ 4A
Voltage - output3.4V
Voltage - output (Min (Fixed))0.5V
Current - output4A
Current - quiescent1.6 mA
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR); Cut Tape (CT)
Case16-WQFN Exposed Pad
Control featuresEnable, Power Good
Protection featuresOver Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
Number of regulators1
Output configurationPositive

Product details

Protection and control — what is built in

On-chip protection covers over-current, over-temperature, short-circuit, and under-voltage lockout (UVLO). That means you can skip external current-limit resistors and watchdog supervisors for many point-of-load designs. The Enable pin lets you sequence rails, and the Power Good output signals when the output is within regulation — useful for FPGA core sequencing or reset generation.

Temperature grade and deployment environment

Rated for -40°C to 85°C operating ambient, this part suits industrial control cabinets, outdoor telecom enclosures, and automotive cabin electronics. The exposed pad must be soldered to a thermal land on the PCB; without adequate copper area, the junction temperature will limit output current well before the 4A rating.

Sourcing and lifecycle

The part is available through independent distribution channels; pricing and lead time are confirmed at quote time against an RFQ. For dual-sourcing resilience, check pin-compatible siblings in the same family — same footprint, different current grades.

Frequently asked questions

Is MAX8556ETE+T obsolete?

No. The manufacturer lists this part as Active with ROHS3 compliance. No discontinuation notice or last-time-buy schedule is in effect.

Does MAX8556ETE+T require a heat sink?

The 16-WQFN exposed pad package is designed to dissipate heat through the PCB copper plane. Whether an additional heatsink is needed depends on the input-to-output differential, ambient temperature, and PCB layout. At 4A with 0.2V dropout, dissipation is roughly 0.8W; at higher differentials, thermal design becomes critical.

Is MAX8556ETE+T pin compatible with MAX8555?

The MAX8555 and MAX8556 share the same pinout and package (16-TQFN 5x5). The key difference is output current rating — the MAX8555 is a lower-current variant. Check the respective datasheets for exact current limits before substituting.

What is the closest pin-compatible alternative to MAX8556ETE+T?

Within the same family, the MAX8555 is pin-compatible but rated for lower output current. For a direct 4A replacement, stick with the MAX8556. No second-source manufacturer lists a drop-in alternate for this exact part number.