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TPA6133A2RTJT

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Texas Instruments Audio Amplifiers, VQFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TPA6133A2RTJT

Texas Instruments · Audio Amplifiers · VQFN-20-EP(4x4)

TPA6133A2RTJT from Texas Instruments, in a VQFN-20-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 LEFTINM input Left channel negative differential input whose impedance must be matched to LEFTINP; connect it to LEFTINM when using single-ended inputs.
2 LEFTINP input Left channel positive differential input whose impedance must be matched to LEFTINM; AC-ground it near the signal source while keeping the matched impedance when using single-ended inputs.
3 GND power_in Analog ground that must be connected to common supply GND and is recommended for decoupling analog VDD.
4 RIGHTINP input Right channel positive differential input whose impedance must be matched to RIGHTINM; AC-ground it near the signal source while keeping the matched impedance when using single-ended inputs.
5 RIGHTINM input Right channel negative differential input whose impedance must be matched to RIGHTINP; connect it to RIGHTINM when using single-ended inputs.
6 SD input Active-low shutdown logic input that is 5 V tolerant, with VIH of 1.3 V and VIL of 0.35 V per the recommended operating conditions; logic 1 activates the headphone channels and charge pump.
7 TEST2 input Factory test pin that must be pulled up to the VDD supply as shown in the applications diagram.
8 TEST1 input Factory test pin that must be pulled up to the VDD supply as shown in the applications diagram.
9 GND power_in Analog ground that must be connected to common supply GND.
10 GND power_in Analog ground that must be connected to common supply GND.
11 HPRIGHT output Headphone right channel output that connects to the right terminal of the headphone jack.
12 VDD power_in Analog VDD that must be connected to the common VDD supply (2.5 V to 5.5 V) and decoupled with its own 1 µF capacitor to analog ground at pin 13.
13 GND power_in Analog ground that must be connected to common supply GND and is used to decouple pin 12 on the QFN package.
14 HPLEFT output Headphone left channel output that connects to the left terminal of the headphone jack.
15 CPVSS power_out Negative supply generated by the charge pump that must be decoupled to pin 19 or a GND plane with a 1 µF capacitor.
16 CPVSS power_out Negative supply generated by the charge pump that must be decoupled to pin 19 or a GND plane with a 1 µF capacitor.
17 CPN passive Charge pump flying capacitor negative terminal; one side of the flying capacitor connects to CPN.
18 CPP passive Charge pump flying capacitor positive terminal; one side of the flying capacitor connects to CPP.
19 GND power_in Charge pump ground that must be connected to common supply GND and decoupled to the charge pump VDD pin (pin 20).
20 VDD power_in Charge pump voltage supply that must be connected to the common VDD supply (2.5 V to 5.5 V) and decoupled to GND (pin 19) with its own 1 µF capacitor.
21 Thermal pad passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-20-EP(4x4)
Category Amplifiers/Comparators
Pins 21

CAD (KiCad official)

  • Symbol: TPA6133A2RTJT
  • Footprint: Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
  • 3D model: VQFN-20-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: tpa6133a2rtjt-etched.step / tpa6133a2rtjt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpa6133a2rtjt.step / tpa6133a2rtjt.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 747d0105fa5e6e34, retrieved 2026-10-08, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF