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1.6 Watt Audio Power Amplifier with Selectable Shutdown Logic Level

NEW - Custom reel may be available
Inventory: 12,068

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
VSSOP (DGS) | 10 3,500 | LARGE T&R
Custom reel may be available
-40 to 85
Package | Pins VSSOP (DGS) | 10
Package qty | Carrier 3,500 | LARGE T&R
Custom reel may be available
Operating temperature range (°C) -40 to 85
View TI packaging information

Features for the LM4901

  • Available in Space-Saving Packages: WSON and VSSOP
  • Ultra Low Current Shutdown Mode
  • BTL Output can Drive Capacitive Loads
  • Improved Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
  • 2.0 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity-Gain Stable
  • External Gain Configuration Capability
  • User Selectable Shutdown High or Low logic Level

Description for the LM4901

The LM4901 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1 watt of continuous average power to an 8Ω BTL load and 1.6 watts of continuous avearge power to a 4Ω BTL load with less than 1% 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 LM4901 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 LM4901 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by either logic high or low depending on mode selection. Driving the shutdown mode pin either high or low enables the shutdown pin to be driven in a likewise manner to enable shutdown.

The LM4901 contains advanced pop and click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions.

The LM4901 is unity-gain stable and can be configured by external gain-setting resistors.


Qty Price (USD)
1-99 0.493
100-249 0.407
250-999 0.292
1,000+ 0.22