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Contents

README

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TPS62091RGTR

Texas Instruments · DC-DC Converters · QFN-16-EP(3x3)

TPS62091RGTR 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 SW bidirectional Switch node of the power stage connecting high-side MOSFET, inductor, and low-side MOSFET; voltage range -0.3 V to VIN + 0.3 V.
2 SW bidirectional Switch node of the power stage connecting high-side MOSFET, inductor, and low-side MOSFET; voltage range -0.3 V to VIN + 0.3 V.
3 FREQ input Frequency selection input; GND selects 2.8 MHz, VIN selects 1.4 MHz switching frequency; has internal 400 kΩ pull-down, floating defaults to 2.8 MHz.
4 PG tri_state Power good open-drain output; high impedance when output within regulation, pulled low when below nominal value; maximum sink current 1 mA.
5 FB input Feedback input pin for output voltage regulation; connect resistor divider to set output voltage in adjustable versions; fixed versions have 400 kΩ pull-down when EN is low.
6 AGND power_in Analog ground reference for control circuitry and feedback signals; connected to exposed thermal pad.
7 CP bidirectional Charge pump flying capacitor; connect 10 nF capacitor between CP and CN to complete gate driver charge pump; voltage range -0.3 V to VIN + 7.0 V.
8 CN bidirectional Charge pump flying capacitor; connect 10 nF capacitor between CP and CN to complete gate driver charge pump; voltage range -0.3 V to VIN + 7.0 V.
9 SS input Softstart ramp control pin; external capacitor sets startup ramp time with 7.5 µA charge current; floating pin sets minimum startup time around 50 µs.
10 AVIN power_in Bias supply input voltage pin for IC control circuitry; operating range 2.5 V to 6 V; voltage limits -0.3 V to 7 V.
11 PVIN power_in Primary power supply input voltage pin; operating range 2.5 V to 6 V; requires 10 µF or larger input capacitor; voltage limits -0.3 V to 7 V.
12 PVIN power_in Primary power supply input voltage pin; operating range 2.5 V to 6 V; requires 10 µF or larger input capacitor; voltage limits -0.3 V to 7 V.
13 EN input Device enable input; pull high to enable converter, pull low to disable; has internal 400 kΩ pull-down resistor; shutdown current 0.6 µA typical.
14 PGND power_in Power ground return path for output stage; must be soldered to exposed thermal pad for mechanical reliability and thermal dissipation.
15 PGND power_in Power ground return path for output stage; must be soldered to exposed thermal pad for mechanical reliability and thermal dissipation.
16 VOS input Output voltage sense pin; connects directly to converter output for feedback regulation; noise-sensitive requiring short direct routing; voltage limits -0.3 V to 7 V.
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: TPS62091RGTR
  • 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: tps62091rgtr-etched.step / tps62091rgtr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps62091rgtr.step / tps62091rgtr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (32 pp, sha256 1aca00440b3d4033, retrieved 2026-09-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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