component
TPS51225BRUKR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, WQFN-20-EP(3x3). 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
markdownTPS51225BRUKR
Texas Instruments · DC-DC Converters · WQFN-20-EP(3x3)
TPS51225BRUKR from Texas Instruments, in a WQFN-20-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 | CS1 | output | Current sensing output; sources 10 µA at 25°C for setting channel 1 OCL trip level via external resistor; voltage range 0.2-2 V. |
| 2 | VFB1 | input | Feedback input for channel 1 output voltage monitoring and regulation. |
| 3 | VREG3 | power_out | 3.3 V always-on LDO output; supplies analog circuitry up to 100 mA. |
| 4 | VFB2 | input | Feedback input for channel 2 output voltage monitoring and regulation. |
| 5 | CS2 | output | Current sensing output; sources 10 µA at 25°C for setting channel 2 OCL trip level via external resistor; voltage range 0.2-2 V. |
| 6 | EN2 | input | Enable input for channel 2; enables SMPS when > 1.6 V, disables when < 0.3 V. |
| 7 | PGOOD | output | Open-drain power good output flag; sources 6.5 mA maximum when asserted. |
| 8 | SW2 | output | Switch node for channel 2 buck converter; connects to drain of high-side MOSFET and source of low-side MOSFET. |
| 9 | VBST2 | power_in | Bootstrap supply input for channel 2 high-side gate driver; connect capacitor between VBST2 and SW2. |
| 10 | DRVH2 | output | High-side driver output for channel 2 upper MOSFET. |
| 11 | DRVL2 | output | Low-side driver output for channel 2 lower MOSFET. |
| 12 | VIN | power_in | Power conversion input voltage; operating range 5.5-24 V; UVLO threshold 4.58 V wake-up. |
| 13 | VREG5 | power_out | 5 V LDO output; supplies gate drivers up to 100 mA; switches to VO1 when VO1 > VREG5-1V. |
| 14 | VO1 | input | Feedback input for channel 1 5 V output; monitors voltage and controls VREG5 switchover and VCLK enable. |
| 15 | DRVL1 | output | Low-side driver output for channel 1 lower MOSFET. |
| 16 | DRVH1 | output | High-side driver output for channel 1 upper MOSFET. |
| 17 | VBST1 | power_in | Bootstrap supply input for channel 1 high-side gate driver; connect capacitor between VBST1 and SW1. |
| 18 | SW1 | output | Switch node for channel 1 buck converter; connects to drain of high-side MOSFET and source of low-side MOSFET. |
| 19 | VCLK | output | 260 kHz clock output for charge pump; available when EN1 is high and driven by VO1 voltage. |
| 20 | EN1 | input | Enable input for channel 1; enables SMPS when > 1.6 V, disables when < 0.3 V. |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-20-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 21 |
CAD (KiCad official)
- Symbol:
TPS51225BRUKR - Footprint:
Package_DFN_QFN:UQFN-20-1EP_3x3mm_P0.4mm_EP1.85x1.85mm - 3D model: WQFN-20-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
tps51225brukr-etched.step/tps51225brukr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps51225brukr.step/tps51225brukr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (32 pp, sha256
90becab25ed7799b, 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).