Skip to main content
Texas Instruments LM4819LDX/NOPB — Logic ICs
Texas Instruments

TI LM4819LDX/NOPB Class AB Audio Amp, 350mW mono

MPNLM4819LDX/NOPB
End of Life

Texas Instruments Boomer® LM4819LDX/NOPB, Class AB audio amplifier, 1-Channel (Mono), 350mW x 1 @ 16Ohm, 2V ~ 5.5V supply, -40°C ~ 85°C, 8-WSON (2.5x2.5) package.

$0.3Ref. price · indicative, final on quote
LM4819LDX/NOPB datasheet
Packaging8-WFDFN 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

LM4819LDX/NOPB Technical Specifications
ParameterValue
TypeClass AB
SeriesBoomer®
Output type1-Channel (Mono)
Mounting typeSurface Mount
Voltage2V ~ 5.5V
Max output power x channels @ load350mW x 1 @ 16Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
FeaturesDepop, Differential Inputs, Shutdown
Case8-WFDFN Exposed Pad

Product details

350 mW mono amplifier for portable and embedded audio

The Texas Instruments LM4819LDX/NOPB is a Boomer® series Class AB audio power amplifier delivering 350 mW into a 16 Ω load from a single mono channel. The part includes depop circuitry to suppress turn-on thumps, differential inputs for noise rejection in mixed-signal layouts, and a shutdown mode for battery conservation.

Package and mounting

Housed in an 8-WFDFN with exposed pad (supplier package 8-WSON, 2.5x2.5 mm), this is a small outline no-lead package meant for surface-mount assembly. A via stitch under the pad to the ground plane is standard practice. The 2 V minimum supply is worth noting for deeply-discharged Li-ion scenarios: the amplifier still produces usable audio down to that rail, though output swing is reduced. At 5.5 V the full 350 mW into 16 Ω is available.

Frequently asked questions

What is the output power of LM4819LDX/NOPB?

The LM4819LDX/NOPB delivers 350 mW into a 16 Ω load from a single mono channel. That rating assumes the supply voltage and load impedance are within the specified operating range.

Is LM4819LDX/NOPB lead-free and RoHS compliant?

Yes, the LM4819LDX/NOPB is ROHS3 Compliant per the manufacturer's specification. The /NOPB suffix indicates lead-free / RoHS-compliant plating.