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Analog Devices MAX6314US31D3+T — DC-DC Power Modules

MAX6314US31D3+T Simple Reset/Power-On Reset, 3.08V Threshold

MPNMAX6314US31D3+T
End of Life

Maxim Integrated MAX6314US31D3+T, Simple Reset/Power-On Reset, Active Low, Bidirectional, 140ms Minimum Reset Timeout, 3.08V Threshold, SOT-143-4, -40°C to 85°C.

$3.85Ref. 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

MAX6314US31D3+T specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - threshold3.08V
Number of voltages monitored1
Operating temperature-40°C ~ 85°C (TA)
ResetActive Low
OutputBidirectional
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout140ms Minimum
CaseTO-253-4, TO-253AA

Product details

What this supervisor does on the rail

The Maxim Integrated MAX6314US31D3+T is a single-channel voltage supervisor that asserts a reset signal when the monitored supply drops below 3.08 V. It holds the reset output active for a minimum of 140 ms after the supply recovers, giving the downstream processor time to stabilize its oscillator and power-on sequence. The active-low, bidirectional output can be wire-ORed with other reset sources on the board. This part monitors a single voltage rail. Packaged in a SOT-143-4, it occupies minimal board area and is suited for space-constrained designs like sensor nodes, baseband modules, and compact PLC I/O cards. Surface-mount assembly keeps production costs low.

The 140 ms minimum reset timeout is long enough to cover most crystal oscillator start-up times and supply ramp characteristics. It also masks short glitches on the supply, reducing nuisance resets in noisy environments like motor drives or switching power supplies.

ROHS3 compliance is confirmed, which simplifies compliance with EU and global material restrictions.

Frequently asked questions

What is the reset timeout of MAX6314US31D3+T?

The reset timeout is a minimum of 140 ms. This is the guaranteed period the reset output stays asserted after the supply voltage rises above the threshold.

What does the 3.08 V threshold mean for my 3.3 V design?

The threshold is set to detect a brown-out on a 3.3 V rail before the logic loses state. It trips at 3.08 V, which is above the typical minimum operating voltage of 3.3 V devices, giving the supervisor time to assert reset cleanly.