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LM4917 Ground-Referenced, 95mW Stereo Headphone Amplifier

NEW - Custom reel may be available
Inventory: 26,134  

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
View or download

Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
WSON (NHK) | 14 1,000 | LARGE T&R
Custom reel may be available
-40 to 85
Package | Pins WSON (NHK) | 14
Package qty | Carrier: 1,000 | LARGE T&R
Custom reel may be available
Operating temperature range (°C) -40 to 85
View TI packaging information

Features for the LM4917

  • Ground Referenced Outputs
  • High PSRR
  • Available in Space-Saving TSSOP Package
  • Ultra Low Current Shutdown Mode
  • Improved Pop and Click Circuitry eliminates Noises During Turn-On and Turn-Off Transitions
  • 1.4 – 3.6V Operation
  • No Output Coupling Capacitors, Snubber Networks, Bootstrap Capacitors
  • Shutdown Either Channel Independently

Key Specifications

  • Improved PSRR at 1kHz: 70dB (Typ)
  • Power Output at VDD = 3V, RL = 16Ω, THD ≦ 1%: 95mW (Typ)
  • Shutdown Current: 0.01µA (Typ)

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Description for the LM4917

The LM4917 is a stereo, output capacitor-less headphone amplifier capable of delivering 95mW of continuous average power into a 16Ω load with less than 1% THD+N from a single 3V power supply.

The LM4917 provides high quality audio reproduction with minimal external components. A ground referenced output eliminates the output coupling capacitors typically required by single-ended loads, reducing component count, cost and board space consumption. This makes the LM4917 ideal for mobile phones and other portable equipment where board space is at a premium. Eliminating the output coupling capacitors also improves low frequency response.

The LM4917 operates from a single 1.4V to 3.6V power supply, features low 0.02% THD+N and 70dB PSRR. Independent right/left channel low-power shutdown controls provide power saving flexibility for mono/stereo applications. Superior click and pop suppression eliminates audible transients during start up and shutdown. Short circuit and thermal overload protection protects the device during fault conditions.


Qty Price (USD)
1-99 2.153
100-249 1.778
250-999 1.277
1,000+ 0.961