TPF632C-TR from 3PEAK, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	+INR	input	Positive (non-inverting) input of the right channel op-amp. Differential audio input for the right channel driver.
2	-INR	input	Negative (inverting) input of the right channel op-amp. Typically AC-coupled through CIN and RIN, with feedback via RFB to set inverting gain.
3	OUTR	output	Output of the right channel op-amp. Delivers up to 3 VRMS into a 2.5 kΩ load; stable with 220 pF capacitive load; short-circuit current ~20 mA.
4	GND	power_in	Analog ground reference for the amplifier and internal circuitry.
5	EN	input	Enable input for pop-free on/off control. Left open, it is pulled high through an internal 100 kΩ resistor. VIH ≥ 1 V, VIL ≤ 0.5 V (VDD=3.3 V) / 0.6 V (VDD=5 V).
6	PVSS	power_out	Negative supply rail generated by the integrated charge pump (-PVDD). Requires a decoupling capacitor to ground (≥ CPUMP, typically 1 µF).
7	CN	bidirectional	Negative terminal of the charge-pump flying capacitor. Connect the flying capacitor (0.1 - 2.2 µF, typ 0.33 µF) between CP and CN.
8	CP	bidirectional	Positive terminal of the charge-pump flying capacitor. Connect the flying capacitor (0.1 - 2.2 µF, typ 0.33 µF) between CP and CN.
9	PVDD	power_in	Positive supply for the amplifier and charge pump. Operating range 2.7 V to 5.5 V (5 V recommended for 3 VRMS output, 3.3 V for 2 VRMS). Decouple with ~10 µF (CIN).
10	PGND	power_in	Power/ground return for the internal charge pump. Tie to system ground close to the flying-capacitor and PVSS decoupling capacitors.
11	UVP	input	Under-voltage protection input. External resistor divider sets the trip threshold VUVP (1.20 V typ at VDD=5 V, 1.23 V typ at VDD=3.3 V). Hysteresis current IHYS ≈ 4.7 µA. Mutes the output when the monitored voltage drops below the set value.
12	OUTL	output	Output of the left channel op-amp. Delivers up to 3 VRMS into a 2.5 kΩ load; stable with 220 pF capacitive load; short-circuit current ~20 mA.
13	-INL	input	Negative (inverting) input of the left channel op-amp. Typically AC-coupled through CIN and RIN, with feedback via RFB to set inverting gain.
14	+INL	input	Positive (non-inverting) input of the left channel op-amp. Differential audio input for the left channel driver. (Datasheet table row for pin 14 mislabels this as '+INR'; the Pin Configuration diagram and the description 'Positive input of the left channel OPAMP' confirm it is +INL.)

Key specifications

Parameter	Value
Manufacturer	3PEAK
Package	TSSOP-14
Category	Interface
Pins	14

Ordering variants

Same part, different packaging or reel option.

TPF632C-TR
TPF605C-VR
TPF605C-DFFR
TPF607C-VR

CAD (KiCad official)

Symbol: TPF632C-TR
Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
3D model: TSSOP-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tpf632c-tr.step`	194 KB	You want the bare part, or you mark your own boards.
`tpf632c-tr-etched.step`	2.3 MB	You want the part with `TPF632C-TR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 566 faces against 237 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: 3PEAK datasheet (14 pp, sha256 7646b9bc7d126297, retrieved 2026-08-17, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF