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Texas Instruments LM4809MM/NOPB — Memory (DRAM / SRAM / Flash / EEPROM)
Texas Instruments

LM4809MM/NOPB TI Boomer Class AB Stereo Headphone Amp, 105mW

MPNLM4809MM/NOPB
End of Life

Texas Instruments Boomer series, LM4809MM/NOPB, Class AB stereo headphone amplifier, 105mW x 2 into 16Ω, 2V-5.5V supply, 8-VSSOP package, -40°C to 85°C operating temperature.

$1.69Ref. price · indicative, final on quote
LM4809MM/NOPB datasheet
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
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

LM4809MM/NOPB Technical Specifications
ParameterValue
TypeClass AB
SeriesBoomer®
Output typeHeadphones, 2-Channel (Stereo)
Mounting typeSurface Mount
Voltage2V ~ 5.5V
Max output power x channels @ load105mW x 2 @ 16Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesDepop, Shutdown, Thermal Protection
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)

Product details

Stereo headphone driver for portable audio

The Texas Instruments LM4809MM/NOPB is a Class AB stereo headphone amplifier from the Boomer series, delivering 105 mW per channel into a 16 Ω load. It operates from a 2 V to 5.5 V supply, making it a fit for battery-powered portable audio — phones, tablets, portable media players, and handheld instrumentation where a single Li-ion cell or two alkaline cells provide the rail. The 8-VSSOP package keeps the board footprint small, and the -40°C to 85°C temperature range covers consumer and industrial ambient environments without derating.

Built-in protection and shutdown

The LM4809MM/NOPB includes depop circuitry to suppress turn-on/turn-off clicks, a shutdown pin for power saving, and thermal protection. The depop feature is worth noting — it saves an external mute circuit and avoids the pop that otherwise hits the headphones when the amplifier powers up. Shutdown drops quiescent current to microamps, extending battery standby time.

Lifecycle and sourcing

Texas Instruments lists the LM4809MM/NOPB as Active and ROHS3 compliant. For volume production, this part is quoted against an RFQ through independent distribution — availability and current pricing confirmed at quote time.

Frequently asked questions

What is the output power of LM4809MM/NOPB?

The LM4809MM/NOPB delivers 105 mW per channel into a 16 Ω load, stereo (2-channel).

What is the difference between LM4809MM and LM4809MM/NOPB?

The /NOPB suffix indicates a lead-free (Pb-free) and ROHS3-compliant finish. The base LM4809MM is the same die with a different plating option; the /NOPB variant is the one to specify for ROHS-driven BOMs.