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BU33TD2WNVX-TL

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ROHM Semicon Linear Voltage Regulators (LDO), DFN-4-EP(1x1). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icsbu33td2wnvx-tlfactory-2.0.0extractor-text

Verified BU33TD2WNVX-TL

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier mfr, 5 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BU33TD2WNVX-TL · DFN-4-EP(1x1) · 5 pins
  • ✓copper: 5 copper pads, none touching another net
  • ✓datasheet: all 5 pin names found in the 44-page datasheet
  • ✓distributor: lcsc C161952, digikey BU33TD2WNVX-TLTR-ND, mouser 755-BU33TD2WNVX-TL
  • ✓family: UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-p46fq6xj/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 5 pins = 5 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 5 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bu33td2wnvx-tl.kicad_sym✓ bu33td2wnvx-tl.kicad_mod✓ bu33td2wnvx-tl.step
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Contents

README

markdown

BU33TD2WNVX-TL

ROHM Semicon · Linear Voltage Regulators (LDO) · DFN-4-EP(1x1)

BU33TD2WNVX-TL from ROHM Semicon, in a DFN-4-EP(1x1). 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 VOUT power_out Regulated output voltage pin, with a 0.47uF ceramic output capacitor (minimum 0.22uF) recommended and a built-in output discharge circuit.
2 GND power_in Ground pin, which must be the lowest potential in the system under all operating conditions.
3 STBY input ON/OFF control of the output voltage, with High (1.2V to 6.0V) = ON and Low (-0.3V to 0.3V) = OFF.
4 VIN power_in Power supply voltage input with a recommended operating range of 1.7V to 6.0V and an absolute maximum of 6.5V.
5 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package DFN-4-EP(1x1)
Category Power Management ICs
Pins 5

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Power Supply Voltage (absolute maximum) VMAX -0.3 6.5 V 3
Power Dissipation Pd 560 mW (*1) derated 5.6mW/℃ above Ta=25℃, mounted on 70×70×1.6 mm glass-epoxy PCB 3
Maximum junction temperature TjMAX 125 ℃ 3
Operating Temperature Range Topr -40 85 ℃ 3
Storage Temperature Range Tstg -55 125 ℃ 3
Power Supply Voltage (recommended) VIN 1.7 6 V 3
Maximum Output Current IMAX 200 mA 3
Input Capacitor Cin 0.22 0.47 μF Ceramic capacitor recommended 3
Output Capacitor Co 0.22 0.47 μF Ceramic capacitor recommended 3
Output Voltage accuracy VOUT -1 1 % IOUT=10μA, VOUT≧2.5V 4
Operating Current IIN 35 60 μA IOUT=0mA 4
Operating Current (STBY) ISTBY 1 μA STBY=0V 4
Ripple Rejection Ratio RR 45 70 dB VRR=-20dBv, fRR=1kHz, IOUT=10mA 4
Dropout Voltage (3.2V≦VOUT≦3.4V) VSAT 220 420 mV 3.2V≦VOUT≦3.4V (IOUT=200mA) 4
Line Regulation VDL 2 20 mV VIN=VOUT+1.0V to 5.5V (*4), IOUT=10μA 4
Load Regulation VDLO 10 80 mV IOUT=0.01mA to 100mA 4
Over Current Protection Limit Current ILMAX 220 400 700 mA Vo=VOUT*0.95 4
Short Current ISHORT 20 70 150 mA Vo=0V 4
Discharge Resistor RDSC 20 50 80 Ω VIN=4.0V, STBY=0V, VOUT=4.0V 4
STBY Pin Pull-down Current ISTB 0.1 0.6 2 μA STBY=1.5V 4
STBY Control Voltage ON VSTBH 1.2 6 V 4
STBY Control Voltage OFF VSTBL -0.3 0.3 V 4
Thermal resistance junction-ambient θja 178.6 °C/W Standard ROHM Board 70×70×1.6 mm, glass epoxy, wind speed 0 m/s 38
Thermal resistance junction-ambient θja 256.4 °C/W Evaluation Board 1 40×40×1.6 mm, glass epoxy, wind speed 0 m/s 38
Output Voltage (nominal, BU33) VOUT 3.3 V 3

CAD (KiCad official)

  • Symbol: BU33TD2WNVX-TL
  • Footprint: Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm
  • 3D model: DFN-4-EP(1x1) (KiCad packages3D, STEP)
  • 3D model files: bu33td2wnvx-tl-etched.step / bu33td2wnvx-tl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bu33td2wnvx-tl.step / bu33td2wnvx-tl.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (44 pp, sha256 3d280d5541ecf98d, retrieved 2026-11-06, tier: manufacturer)
  • 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