Stereo 11W Audio Power Amplifier


Product details


Audio input type Analog Input Architecture Class-AB Speaker channels (Max) Stereo Power stage supply (Max) (V) 16 Power stage supply (Min) (V) 9.6 Load (Min) (ohms) 4 Output power (W) 11 THD + N @ 1 kHz (%) 0.08 Iq (Typ) (mA) 5.25 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 9.6 Analog supply (Max) (V) 16 PSRR (dB) 50 Operating temperature range (C) 0 to 70 open-in-new Find other Speaker amps

Package | Pins | Size

TO-263 (KTW) 7 154 mm² 10.1 x 15.24 open-in-new Find other Speaker amps


  • Drives 4Ω and 8Ω Loads
  • Internal Gain Resistors (AV = 34 dB)
  • Minimum External Component Requirement
  • Single Supply Operation
  • Internal Current Limiting
  • Internal Thermal Protection
  • Compact 7-lead TO-220 Package
  • Low Cost-Per-Watt
  • Wide Supply Range 9V - 40V

Key Specifications

  • Output Power at 10% THD+N with 1kHz into 4Ω VCC = 24V 11 W (typ)
  • Output Power at 10% THD+N with 1kHz into 8Ω VCC = 24V 7 W (typ)
  • Closed Loop Gain 34 dB (typ)
  • PO at 10% THD+N @ 1 kHz into 4Ω Single-Ended DDPAK Package VCC = 12V 2.5 W (typ)
  • PO at 10% THD+N @ 1kHz into 8Ω Bridged DDPAK Package VCC = 12V 5 W (typ)

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The LM4752 is a stereo audio amplifier capable of delivering 11W per channel of continuous average output power to a 4Ω load, or 7W per channel into 8Ω using a single 24V supply at 10% THD+N.

The LM4752 is specifically designed for single supply operation and a low external component count. The gain and bias resistors are integrated on chip, resulting in a 11W stereo amplifier in a compact 7 pin TO-220 package. High output power levels at both 20V and 24V supplies and low external component count offer high value for compact stereo and TV applications. A simple mute function can be implemented with the addition of a few external components.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet LM4752 Stereo 11W Audio Power Amp datasheet (Rev. E) Apr. 04, 2013
Application notes Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application notes AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019

Design & development

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Design tools & simulation

SNAM045.TSC (295 KB) - TINA-TI Reference Design
SNAM046.ZIP (20 KB) - TINA-TI Spice Model
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CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTW) 7 View options

Ordering & quality

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