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Texas Instruments LM809M3-4.63/NOPB — Discrete Semiconductors
Texas Instruments

LM809M3-4.63/NOPB Simple Reset/Power-On Reset

MPNLM809M3-4.63/NOPB
End of Life

Texas Instruments LM809M3-4.63/NOPB, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 4.63V Threshold, 140ms Minimum Reset Timeout, -40°C to 105°C, SOT-23-3.

$1.02Ref. price · indicative, final on quote
LM809M3-4.63/NOPB datasheet
PackagingTO-236-3, SC-59, SOT-23-3
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.
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Specifications

LM809M3-4.63/NOPB Technical Specifications
ParameterValue
TypeSimple Reset/Power-On Reset
Mounting typeSurface Mount
Voltage - threshold4.63V
Number of voltages monitored1
Operating temperature-40°C ~ 105°C (TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout140ms Minimum
CaseTO-236-3, SC-59, SOT-23-3

Product details

Push-pull output — no external pull-up needed

The output is push-pull, totem pole, which means it drives both high and low without requiring an external pull-up resistor. That saves a component and a trace on the board. If your design expects an open-drain output for wired-OR sharing, this part will not work there — the push-pull stage fights any other driver. For a dedicated reset line to a single processor, it is the cleaner option.

Sourcing and lifecycle reality

Texas Instruments lists the LM809M3-4.63/NOPB as Active in production. For a BOM freeze or a long-production-run design, this is a low-risk line item.

Frequently asked questions

Does LM809M3-4.63/NOPB have an open-drain or push-pull output?

It has a push-pull, totem pole output. It drives high and low without an external pull-up resistor, so it is not compatible with wired-OR reset schemes that require an open-drain output.

What are the equivalent or cross-reference parts for LM809M3-4.63/NOPB?

The TLV803EA29VDBZR is a functional peer: it is also a simple reset/power-on reset with active low output, but its output is open-drain (not push-pull), its reset timeout is 130ms minimum, and its temperature range extends to 125°C. The TLV803ED29DBZR is similar with a 33ms minimum timeout. Neither is a drop-in replacement due to the output structure difference.

Is LM809M3-4.63/NOPB RoHS compliant?

Yes, it is ROHS3 compliant.