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TPS2549IRTETQ1

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Texas Instruments USB Converters, WQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TPS2549IRTETQ1

Texas Instruments · USB Converters · WQFN-16-EP(3x3)

TPS2549IRTETQ1 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 4.5V to 6.5V; requires 0.1µF or greater ceramic bypass capacitor to GND.
2 DM_OUT bidirectional D− data line to upstream USB host controller; 0 to 3.6V, ±30mA continuous current.
3 DP_OUT bidirectional D+ data line to upstream USB host controller; 0 to 3.6V, ±30mA continuous current.
4 CS output Current sense output providing proportional sink current for cable compensation feedback to upstream regulator.
5 EN input Enable logic input; low level disables power switch and signal switches.
6 CTL1 input Logic-level control input for charging mode and signal switch selection; tie directly to IN or GND without pullup.
7 CTL2 input Logic-level control input for charging mode and signal switch selection; tie directly to IN or GND without pullup.
8 CTL3 input Logic-level control input for charging mode and signal switch selection; tie directly to IN or GND without pullup.
9 STATUS output Active-low open-drain output asserted when load exceeds load-detection threshold; 10mA maximum sink.
10 DP_IN bidirectional D+ data line from downstream connector; 0 to 3.6V, ±30mA continuous current.
11 DM_IN bidirectional D− data line from downstream connector; 0 to 3.6V, ±30mA continuous current.
12 OUT power_out Power switch output; 3.2A maximum continuous current at −40°C to 85°C.
13 FAULT output Active-low open-drain output asserted during overtemperature, overcurrent, or DP_IN/DM_IN overvoltage; 10mA sink.
14 GND power_in Ground connection; internally connected to thermal pad for heat-sinking to circuit board.
15 ILIM_LO input Connect external resistor to GND (10.4kΩ to 1MΩ) to set low current-limit and load-detection thresholds.
16 ILIM_HI input Connect external resistor to GND (10.4kΩ to 1MΩ) to set high current-limit threshold.
17 PAD 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 Interface
Pins 17

CAD (KiCad official)

  • Symbol: TPS2549IRTETQ1
  • 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: tps2549irtetq1-etched.step / tps2549irtetq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps2549irtetq1.step / tps2549irtetq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (46 pp, sha256 7bf9a3933c8fa4bf, 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