component
TPS51219RTET
Public Made by Adomby adom
Texas Instruments DC-DC Converters, QFN-16-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
markdownTPS51219RTET
Texas Instruments · DC-DC Converters · QFN-16-EP(3x3)
TPS51219RTET from Texas Instruments, in a QFN-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 | VREF | power_in | 2.0-V ±0.8% internal voltage reference output with 300-µA drive capability for external resistor divider network. |
| 2 | REFIN | input | Output voltage setting input programmed by resistor divider connected between VREF and GSNS within 0.5V to 2.0V range. |
| 3 | GSNS | input | GND sense return input connected to quiet ground reference point of load; short to GND if remote sensing not used. |
| 4 | VSNS | input | Voltage sense input connected to load voltage point for differential remote voltage feedback to error amplifier. |
| 5 | COMP | input | Error amplifier output and compensation network connection point; capacitor connected from COMP to VSNS (D-CAP2) or output capacitor (D-CAP). |
| 6 | TRIP | input | Overcurrent threshold setting input sourcing 10µA at room temperature with 4700ppm/°C temperature coefficient for RDS(on) current sensing configuration. |
| 7 | GND | power_in | Device analog ground reference; connect to quiet point on system ground plane with multiple vias. |
| 8 | PGND | power_in | Power ground return for low-side synchronous MOSFET gate driver and positive input for current sensing; route close to device. |
| 9 | V5 | power_in | 5V power supply input for internal circuits and MOSFET gate drivers; operating range 4.2V to 5.5V. |
| 10 | DL | output | Low-side synchronous MOSFET gate driver output; directly drives gate of low-side power FET. |
| 11 | DH | output | High-side synchronous MOSFET gate driver output; directly drives gate of high-side power FET with bootstrap charge. |
| 12 | SW | bidirectional | Switching node connection for high-side gate driver return and RDS(on) current sense negative input referenced to PGND. |
| 13 | BST | input | Bootstrap gate drive supply input for high-side driver; connect storage capacitor between BST and SW pins. |
| 14 | EN | input | Enable control input with 3.3V I/O level compatibility and 100ns debounce; short to GND to disable device operation. |
| 15 | MODE | input | Control mode selection input; resistor tied to GND sets D-CAP™/D-CAP2™ mode, switching frequency (300-670kHz), and current sensing scheme. |
| 16 | PGOOD | tri_state | Open-drain power good output signal; asserts high when output voltage within ±8% (typ) of REFIN target range. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | QFN-16-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
TPS51219RTET - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: QFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
tps51219rtet-etched.step/tps51219rtet-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps51219rtet.step/tps51219rtet.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
d6e730c2602800ae, retrieved 2026-10-07, 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).