Skip to main content
Analog Devices MAX6315US44D2+T — DC-DC Power Modules

MAX6315US44D2+T Simple Reset/Power-On Reset, 4.39V Threshold

MPNMAX6315US44D2+T
End of Life

Analog Devices MAX6315US44D2+T, Simple Reset/Power-On Reset, Active Low, Open Drain, 4.39V Threshold, 20ms Min Reset Timeout, -40°C to 125°C, SOT-143-4.

$3.53Ref. price · indicative, final on quote
PackagingTO-253-4, TO-253AA
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX6315US44D2+T specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold4.39V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout20ms Minimum
CaseTO-253-4, TO-253AA

Product details

The 125°C upper limit allows placement near a hot processor or power module without derating concerns.

Output type and what it demands from your board

The reset output is active-low, open-drain. That means the output pin pulls to ground when reset is asserted, and floats when reset is released. The open-drain topology is useful because it lets you wire-OR the reset signal with other supervisors or a manual reset button — any device pulling the line low forces a system reset. It also means the output voltage is not limited by the supervisor's supply; you can pull up to a different voltage rail if the downstream logic requires it.

Housed in a SOT-143-4 package, this is a four-pin surface-mount part with a 1.4mm pitch. The SOT-143 footprint is common and well-supported in assembly houses. No exotic handling required — this is a straightforward reflow-solder part.

ROHS3 compliant per the manufacturer's declaration. Because the part is active, lead times typically track with standard semiconductor supply — no special broker sourcing required, but the independent channel gives flexibility for urgent or non-standard quantity requests.

Frequently asked questions

What is the closest pin-compatible alternative to MAX6315US44D2+T?

Analog Devices offers multiple threshold variants in the same SOT-143-4 package and pinout across the MAX6315 family. For a 3.3V rail, a part with a threshold near 2.93V or 3.08V would be the functional equivalent in the same footprint. No single pin-compatible drop-in exists at a different threshold without checking the specific variant's datasheet for pin compatibility.

Is MAX6315US44D2+T compatible with 3.3V systems?

No. The 4.39V threshold is designed for 5V rails. In a 3.3V system, the supply never reaches 4.39V, so the supervisor would hold the reset line asserted indefinitely. For 3.3V systems, select a supervisor with a threshold in the 2.6V to 3.1V range.