PMP11769 Reference Design

Texas Instruments

700W Automotive External Audio Amplifier Reference Design


The PMP11769 reference design is a complete solution for a 700W automotive external amp. The boost converter provides 36.0V @ 10.0A continuous / 20.0A peak from an input voltage of 9-16V. It contains two premium Class-D audio amplifiers, which provide 2x 175W @ 4-Ω load (left & right channel) and 1x 350W @ 2-Ω (subwoofer).The design is well suited for car audio external amp applications due to its thin profile and high power output.

  • Easily integrated into automotive systems with 50V load dump and integrated protection system
  • Ultra-HD audio for best quality sound for any integrated Class-D amplifier
  • 100kHz bandwidth, which enables support for high resolution audio files and formats
  • Low noise, which eliminates the "hiss" or "buzz" sounds
  • Automotive External Amplifier
Product Categories
  • Power Management


Part Number Name Companion Part
LM2904-Q1 LM2904-Q1 Buy Datasheet
LM2904AVQD G4Q1 LM2904AVQD G4Q1 Datasheet
LM2904AVQD Q1 LM2904AVQD Q1 Datasheet
LM2904AVQDRG4Q1 LM2904AVQDRG4Q1 Buy Datasheet
LM2904AVQDRQ1 LM2904AVQDRQ1 Buy Datasheet
LM2841-Q1 LM2841-Q1 Buy Datasheet
LM25122QPWPRQ1 LM25122QPWPRQ1 Buy Datasheet
LM25122QPWPTQ1 LM25122QPWPTQ1 Buy Datasheet
OPA1662-Q1 OPA1662-Q1 Buy Datasheet
OPA1662AID Q1 OPA1662AID Q1 Datasheet
OPA1662AIDGK Q1 OPA1662AIDGK Q1 Datasheet
OPA1662AIDGKRQ1 OPA1662AIDGKRQ1 Buy Datasheet
OPA1662AIDRQ1 OPA1662AIDRQ1 Buy Datasheet
TPA3251D2DDV TPA3251D2DDV Buy Datasheet
TPA3251D2DDVR TPA3251D2DDVR Buy Datasheet

Bill Of Materials

Download the bill of materials for PMP11769 Download


Quickly understand overall system functionality.

Download the schematic for PMP11769

Test Data

Get results faster with test and simulation data that's been verified.

Download the test file for PMP11769