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TPS627451DSST
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Texas Instruments DC-DC Converters, WSON-12-EP(2x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS627451DSST
Texas Instruments · DC-DC Converters · WSON-12-EP(2x3)
TPS627451DSST from Texas Instruments, in a WSON-12-EP(2x3). 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 | VIN | power_in | Power supply pin; connect 4.7 µF ceramic capacitor to GND and connect close to the VIN terminal of the input capacitor. |
| 2 | SW | output | Switch pin connected to internal MOSFET switches; connect the inductor to this terminal. |
| 3 | GND | power_in | Supply pin; connect close to the GND terminal of the input and output capacitor. |
| 4 | EN_VIN_SW | input | Connects or disconnects the internal switch from VIN to VIN_SW; low opens switch, high closes switch; tie to GND if not used. |
| 5 | VOUT | input | Feedback pin for the internal feedback divider network and regulation loop; connect directly to the output capacitor with a short trace. |
| 6 | VIN_SW | output | Switch output connecting VIN with VIN_SW when EN_VIN_SW is high; leave open if not used. |
| 7 | PG | output | Open drain power good output. |
| 8 | VSEL4 | input | Output voltage selection pin; see Table 1 and Table 2 for VOUT selection; must be terminated. |
| 9 | VSEL3 | input | Output voltage selection pin; see Table 1 and Table 2 for VOUT selection; must be terminated. |
| 10 | VSEL2 | input | Output voltage selection pin; see Table 1 and Table 2 for VOUT selection; must be terminated. |
| 11 | VSEL1 | input | Output voltage selection pin; see Table 1 and Table 2 for VOUT selection; must be terminated. |
| 12 | EN | input | Enable pin; high level enables device, low level turns device into shutdown mode; must be terminated. |
| 13 | EXPOSED THERMAL PAD | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-12-EP(2x3) |
| Category | Power Management (PMIC) |
| Pins | 13 |
CAD (KiCad official)
- Symbol:
TPS627451DSST - Footprint:
Package_SON:WSON-12-1EP_3x2mm_P0.5mm_EP1x2.65 - 3D model: WSON-12-EP(2x3), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.75 mm nominal WSON height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (38 pp, sha256
487761ca108753bb, retrieved 2026-10-03, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).