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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.

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TPS627451DSST

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, primary claude-haiku-4-5-20251001 (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