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Contents

README

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TPS563240DDCT

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

TPS563240DDCT from Texas Instruments, in a TSOT-23-6. 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 GND power_in Ground pin and source terminal of the low-side power NFET as well as the ground terminal for the controller circuit; connect sensitive VFB to this GND at a single point.
2 SW passive Switch node connection between the high-side NFET and the low-side NFET.
3 VIN power_in Input voltage supply pin and drain terminal of the high-side power NFET, operating range 4.5 V to 17 V.
4 VFB input Converter feedback input; connect to the output voltage with a feedback resistor divider.
5 EN input Enable input control, active high, and must be pulled up to enable the device.
6 VBST passive Supply input for the high-side NFET gate drive circuit; connect a 0.1 µF capacitor between VBST and SW pins.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSOT-23-6
Category Power Supply Chip
Pins 6

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input voltage VIN VIN -0.3 19 V 4
Input voltage VBST VBST -0.3 24.5 V 4
Input voltage VBST (10 ns transient) VBST -0.3 26.5 V 10 ns transient 4
Input voltage VBST (vs SW) VBST -0.3 5.5 V vs SW 4
Input voltage VFB VFB -0.3 5.5 V 4
Input voltage SW SW -2 19 V 4
Input voltage SW (10 ns transient) SW -3.5 21 V 10 ns transient 4
Input voltage EN EN -0.3 V max VIN + 0.3 V 4
Operating junction temperature TJ -40 150 °C 4
Storage temperature Tstg -55 150 °C 4
ESD HBM V(ESD) -2000 2000 V Human-body model, ANSI/ESDA/JEDEC JS-001 4
ESD CDM V(ESD) -500 500 V Charged-device model, JESD22-C101 4
Supply input voltage range VIN 4.5 17 V 4
EN input voltage range EN -0.1 V max VIN 4
Operating junction temperature TJ -40 125 °C 4
Junction-to-ambient thermal resistance RθJA 117.1 °C/W DDC (SOT) 6 pins 4
Junction-to-case (top) thermal resistance RθJC(top) 57.3 °C/W 4
Junction-to-board thermal resistance RθJB 31.2 °C/W 4
Junction-to-top characterization parameter ψJT 11.2 °C/W 4
Junction-to-board characterization parameter ψJB 31.3 °C/W 4
Operating non-switching supply current IVIN 235 300 µA VIN current, EN = 5 V, VFB = 0.7 V, TJ = 25°C 5
Shutdown supply current IVIN(SDN) 2.5 10 µA VIN current, EN = 0 V, TJ = 25°C 5
Enable threshold rising VENH 1.27 1.34 V Rising 5
Enable threshold falling VENL 1.08 1.15 V Falling 5
EN pin resistance to GND REN 800 1000 1200 kΩ VEN = 1 V 5
FB voltage VFB 594 600 606 mV Continuous mode operation, TJ = 25°C 5
FB voltage VFB 588 600 612 mV Continuous mode operation 5
FB input current IFB 0 50 nA VFB = 0.7 V 5
High side FET source current limit Iocl_h_source 5.5 6.3 7.1 A 5
Low side FET source current limit Iocl_l_source 3.1 3.9 4.7 A 5
UVLO wake up VIN voltage UVLO 4.2 4.4 V Wake up VIN voltage 5
UVLO shutdown VIN voltage UVLO 3.6 3.8 V Shutdown VIN voltage 5
High-side switch resistance RDS(on)h 70 mΩ TJ = 25°C 5
Low-side switch resistance RDS(on)l 30 mΩ TJ = 25°C 5
Switching frequency Fsw 1400 kHz 5
Minimum off time tOFF(MIN) 250 ns 5
Soft-start time tss 1.7 ms Internal soft-start time 5

CAD (KiCad official)

  • Symbol: TPS563240DDCT
  • Footprint: Package_TO_SOT_SMD:TSOT-23-6
  • 3D model: TSOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: tps563240ddct-etched.step / tps563240ddct-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps563240ddct.step / tps563240ddct.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 630f8645aee28512, retrieved 2026-10-23, 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: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (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