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2.5 Watt Fully Differential Audio Power Amplifier With Shutdown

NEW - Custom reel may be available
Inventory: 48,562  

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
WSON (NGQ) | 8 1,000 | LARGE T&R
Custom reel may be available
Package | Pins WSON (NGQ) | 8
Package qty | Carrier: 1,000 | LARGE T&R
Custom reel may be available
Operating temperature range (°C)
View TI packaging information

Features for the LM4927

  • Fully Differential Amplification
  • Available in Space-Saving Micro-Array WSON Package
  • Ultra Low Current Shutdown Mode
  • Can Drive Capacitive Loads up to 100pF
  • Improved Pop & Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions
  • 2.4 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required

Key Specifications

  • Improved PSRR at 217Hz, 85dB (Typ)
  • Power Output at 5.0V @ 10% THD (4Ω), 2.5W (Typ)
  • Power Output at 3.3V @ 1% THD, 550mW (Typ)
  • Shutdown Current, 0.1µA (Typ)

Boomer is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

Description for the LM4927

The LM4927 is a fully differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 2.5 watts of continuous average power to a 4Ω load with less than 10% distortion (THD+N) from a 5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4927 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4927 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by logic low. Additionally, the LM4927 features an internal thermal shutdown protection mechanism.

The LM4927 contains advanced pop & click circuitry which eliminates noises which would otherwise occur during turn-on and turn-off transitions.


Qty Price (USD)
1-99 1.149
100-249 0.949
250-999 0.682
1,000+ 0.513