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Contents

README

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TPS563249DDCR

Texas Instruments · DC-DC Converters · TSOT-23-6

TPS563249DDCR from Texas Instruments, in a TSOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin. Source terminal of low-side power NFET as well as the ground terminal for controller circuit. Connect sensitive VFB to this GND at a single point.
2 SW output Switch node connection between high-side NFET and low-side NFET. Connects to the external inductor. Absolute max -2V to 19V (steady state).
3 VIN power_in Input voltage supply pin. The drain terminal of high-side power NFET. Recommended operating range 4.5V to 17V; absolute max 19V.
4 VFB input Converter feedback input. Connect to output voltage with feedback resistor divider. Regulates to internal reference of 600mV (typ).
5 EN input Enable input control. Active high and must be pulled up to enable the device. Rising threshold 1.27V typ; internal ~1MΩ pulldown to GND.
6 VBST power_out Supply input for the high-side NFET gate drive circuit (bootstrap). Connect a 0.1 µF capacitor between VBST and SW pins.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSOT-23-6
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • TPS563249DDCR
  • TPS563249DDCRDDCT

CAD (KiCad official)

  • Symbol: TPS563249DDCR
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: TSOT-23-6 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 424439e3974dcf0d, retrieved 2026-08-17, tier: manufacturer)
  • 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF