component
TPS2549RTER
Public Made by Adomby adom
Texas Instruments Power Distribution Switches, WQFN-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
markdownTPS2549RTER
Texas Instruments · Power Distribution Switches · WQFN-16-EP(3x3)
TPS2549RTER from Texas Instruments, in a WQFN-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 | IN | power_in | Input supply voltage, 4.5 V to 6.5 V; connect a 0.1 µF or greater ceramic capacitor from IN to GND as close to the IC as possible. |
| 2 | DM_OUT | bidirectional | D- data line to upstream USB host controller. |
| 3 | DP_OUT | bidirectional | D+ data line to upstream USB host controller. |
| 4 | CS | output | Provide sink current proportional to output current, 75 µA/A; for cable compensation, connect to the feedback divider of the up-stream voltage regulator. |
| 5 | EN | input | Logic-level control input for turning the power switch and the signal switches on/off; when EN is low, the device is disabled and the signal and power switches are OFF. |
| 6 | CTL1 | input | Logic-level control input for controlling the charging mode and the signal switches; ties directly to IN or GND without a pullup or pulldown resistor. |
| 7 | CTL2 | input | Logic-level control input for controlling the charging mode and the signal switches; ties directly to IN or GND without a pullup or pulldown resistor. |
| 8 | CTL3 | input | Logic-level control input for controlling the charging mode and the signal switches; ties directly to IN or GND without a pullup or pulldown resistor. |
| 9 | STATUS | output | Active-low open-drain output, asserted when the load exceeds the load-detection threshold; 10 mA maximum continuous output sink current. |
| 10 | DP_IN | bidirectional | D+ data line to downstream connector; maximum voltage ±5.7 V with respect to GND. |
| 11 | DM_IN | bidirectional | D- data line to downstream connector; maximum voltage ±5.7 V with respect to GND. |
| 12 | OUT | power_out | Power-switch output; 47 mΩ typical on-resistance MOSFET with 3 A maximum continuous current capability. |
| 13 | FAULT | output | Active-low open-drain output, asserted during overtemperature, overcurrent, and DP_IN and DM_IN overvoltage conditions; 25 mA maximum continuous output sink current. |
| 14 | GND | power_in | Ground connection; should be connected externally to the thermal pad and connected to the GND plane. |
| 15 | ILIM_LO | input | Connect external resistor to ground to set the low current-limit threshold and the load-detection current threshold; 15.4 kΩ to 1000 kΩ recommended. |
| 16 | ILIM_HI | input | Connect external resistor to ground to set the high current-limit threshold; 15.4 kΩ to 1000 kΩ recommended. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-16-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
TPS2549RTER - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: WQFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
tps2549rter-etched.step/tps2549rter-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps2549rter.step/tps2549rter.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (43 pp, sha256
92bc12ea35bdb3a7, retrieved 2026-09-24, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).