# TPS61182RTER

**Texas Instruments** · LED Drivers · WQFN-16-EP(3x3)

TPS61182RTER from Texas Instruments, in a WQFN-16-EP(3x3). 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 | PGND | power_in | Power ground of the IC, internally connected to the source of the PWM switch. |
| 2 | SW | passive | Connects to the drain of the internal PWM switch, the external Schottky diode and the inductor. |
| 3 | VBAT | power_in | Battery supply pin that provides the pull-up voltage for the Fault pin and the battery voltage signal; on the TPS61182 it is also the input to the internal LDO. |
| 4 | VO | output | Monitors the boost regulator output; connect this pin to the anode of the WLED strings. |
| 5 | ISET | input | The resistor on this pin programs the WLED output current. |
| 6 | Cin | power_out | On the TPS61182 this is the output of the internal LDO that supplies the IC; connect a 0.1 μF bypass capacitor to this pin and do not connect it to any other circuit. |
| 7 | IFB1 | input | Current sink regulation input connected to the WLED cathodes; the PWM loop regulates the lowest VIFB to 400 mV and each channel is limited to 25 mA. |
| 8 | IFB2 | input | Current sink regulation input connected to the WLED cathodes; the PWM loop regulates the lowest VIFB to 400 mV and each channel is limited to 25 mA. |
| 9 | IFB3 | input | Current sink regulation input connected to the WLED cathodes; the PWM loop regulates the lowest VIFB to 400 mV and each channel is limited to 25 mA. |
| 10 | GND | power_in | Signal ground of the IC. |
| 11 | DCTRL | input | Dimming control logic input; the dimming frequency range is 100 Hz to 1 kHz. |
| 12 | IFB4 | input | Current sink regulation input connected to the WLED cathodes; the PWM loop regulates the lowest VIFB to 400 mV and each channel is limited to 25 mA. |
| 13 | IFB5 | input | Current sink regulation input connected to the WLED cathodes; the PWM loop regulates the lowest VIFB to 400 mV and each channel is limited to 25 mA. |
| 14 | IFB6 | input | Current sink regulation input connected to the WLED cathodes; the PWM loop regulates the lowest VIFB to 400 mV and each channel is limited to 25 mA. |
| 15 | EN | input | Enable input; for the TPS61182 a logic high turns on the internal LDO and enables the IC, and EN must not be connected to Cin. |
| 16 | Fault | output | Gate driver output for the external PFET used for fault protection; it can also serve as a system fault report signal. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-16-EP(3x3) |
| Category | LED Drivers |
| Pins | 17 |

## CAD (KiCad official)

- Symbol: `TPS61182RTER`
- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`
- 3D model: WQFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `tps61182rter-etched.step` / `tps61182rter-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps61182rter.step` / `tps61182rter.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps61182) (29 pp, sha256 `e9480e02f5fae586`, retrieved 2026-10-08, tier: lcsc)
- **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](docs/tps61182rter-datasheet.pdf)