# TPS61261DRVR

**Texas Instruments** · DC-DC Converters · WSON-6-EP(2x2)

TPS61261DRVR from Texas Instruments, in a WSON-6-EP(2x2). 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 | RI | input | Average output current programming input; a resistor between 2 kΩ and 20 kΩ must be connected between RI and GND. |
| 2 | EN | input | Enable input (High = enabled, Low = disabled); it must not be left floating. |
| 3 | FB | input | Voltage feedback for adjustable versions; it must be connected to VOUT on fixed output voltage versions. |
| 4 | VOUT | power_out | Boost converter output. |
| 5 | L | input | Connection for the inductor. |
| 6 | VIN | power_in | Supply voltage for the control stage; the input supply range is 0.8 V to 4.0 V. |
| 7 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-6-EP(2x2) |
| Category | Power Management (PMIC) |
| Pins | 7 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Voltage range VIN, L, VOUT, EN, FB |  | -0.3 |  | 5 | V |  | 4 |
| Voltage range RI |  | -0.3 |  | 3.6 | V |  | 4 |
| Operating junction temperature range | TJ | -40 |  | 150 | °C |  | 4 |
| Storage temperature range | Tstg | -65 |  | 150 | °C |  | 4 |
| Input supply voltage at VIN | VIN | 0.8 |  | 4 | V |  | 4 |
| Operating free air temperature range | TA | -40 |  | 85 | °C |  | 4 |
| Operating junction temperature range | TJ | -40 |  | 125 | °C |  | 4 |
| Junction-to-ambient thermal resistance | RθJA |  | 89 |  | °C/W | DRV (6 pins) | 4 |
| Junction-to-case (top) thermal resistance | RθJC(top) |  | 100 |  | °C/W | DRV (6 pins) | 4 |
| Junction-to-board thermal resistance | RθJB |  | 35 |  | °C/W | DRV (6 pins) | 4 |
| Junction-to-top characterization parameter | ψJT |  | 2 |  | °C/W | DRV (6 pins) | 4 |
| Junction-to-board characterization parameter | ψJB |  | 36 |  | °C/W | DRV (6 pins) | 4 |
| Junction-to-case (bottom) thermal resistance | RθJC(bot) |  | 8 |  | °C/W | DRV (6 pins) | 4 |
| VIN input voltage range | VIN | 0.8 |  | 4 | V |  | 5 |
| VIN minimum input voltage for startup | VIN |  |  | 1.2 | V | -40°C < TJ < 105°C | 5 |
| TPS61261 output voltage | VOUT | 3.27 | 3.3 | 3.33 | V |  | 5 |
| Average output current programming range | IOUT | 10 |  | 100 | mA |  | 5 |
| Average output current | IOUT | 19 | 20 | 21 | mA | RI = 10 kΩ, TA = 25 °C, VIN < VOUT | 5 |
| Average output current | IOUT | 18 | 20 | 22 | mA | RI = 10 kΩ, 0°C < TJ < 60°C, VIN < VOUT | 5 |
| Quiescent current | IQ |  | 4 | 7 | μA | VIN IO = 0 mA, VEN = VIN = 1.2 V, VOUT = 3.3 V, device not switching | 5 |
| Shutdown current | ISD |  | 0.1 | 1.5 | μA | VEN = 0 V, VIN = 1.2 V | 5 |
| Shutdown current | ISD |  | 0.1 | 0.3 | μA | VEN = 0 V, VIN = 1.2 V, TA = 25°C | 5 |
| Under voltage lockout threshold (falling VIN) | VUVLO | 0.6 | 0.7 | 0.8 | V | Falling VIN | 5 |
| Input leakage current (EN) | ILKG |  | 0.01 | 0.1 | μA | EN = GND or VIN | 5 |
| Output overvoltage protection | VOVP |  | 4 | 4.5 | V |  | 5 |

## CAD (KiCad official)

- Symbol: `TPS61261DRVR`
- Footprint: `Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm`
- 3D model: WSON-6-EP(2x2) (KiCad packages3D, STEP)
- 3D model files: `tps61261drvr-etched.step` / `tps61261drvr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps61261drvr.step` / `tps61261drvr.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/lit/ds/symlink/tps61261.pdf) (28 pp, sha256 `353077ac2b29cbdd`, retrieved 2026-11-05, tier: manufacturer)
- **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/tps61261drvr-datasheet.pdf)