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MC33269DR2-3.3G

Public Made by Adom

by adom

onsemi Linear Voltage Regulators (LDO), SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MC33269DR2-3.3G

onsemi · Linear Voltage Regulators (LDO) · SOIC-8

MC33269DR2-3.3G from onsemi, in a SOIC-8. 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/Adj power_in Ground pin on the fixed 3.3 V version (Adjust pin on the adjustable version); the fixed output needs no adjust resistors.
2 Vout power_out Regulated 3.3 V output, internally connected with pins 3, 6 and 7; needs an external output capacitor of at least 10 µF with ESR between 0.2 and 10 Ω.
3 Vout power_out Regulated output, internally connected with pins 2, 6 and 7 (grouped with them as Vout in the pinout).
4 Vin power_in Power supply input, 20 V maximum rating; a 0.33 µF or larger input bypass capacitor is recommended close to this pin.
5 NC unconnected No internal connection.
6 Vout power_out Regulated output, internally connected with pins 2, 3 and 7 (grouped with them as Vout in the pinout).
7 Vout power_out Regulated output, internally connected with pins 2, 3 and 6 (grouped with them as Vout in the pinout).
8 NC unconnected No internal connection.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category Power Management ICs
Pins 8

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Output Voltage VO 3.27 3.3 3.33 V Iout = 10 mA, TA = 25C, 3.3 Suffix (VCC = 5.3 V) 2
Output Voltage (Line, Load and Temperature) VO 3.23 3.3 3.37 V 1.25 V ≤ Vin − Vout ≤ 15 V, Iout = 500 mA; 1.35 V ≤ Vin − Vout ≤ 10 V, Iout = 800 mA; 3.3 Suffix 2
Line Regulation Regline 0.3 % Iout = 10 mA, Vin = [Vout + 1.5 V] to Vin = 20 V, TA = 25C 2
Load Regulation Regload 0.5 % Vin = Vout + 3.0 V, Iout = 10 mA to 800 mA, TA = 25C 2
Dropout Voltage Vin − Vout 1 1.25 V Iout = 500 mA 2
Dropout Voltage Vin − Vout 1.1 1.35 V Iout = 800 mA 2
Ripple Rejection RR 55 dB 10 Vpp, 120 Hz Sinewave; Iout = 500 mA 2
Current Limit ILimit 800 mA Vin − Vout = 10 V 2
Quiescent Current (Fixed Output) IQ 5.5 8 mA 1.5 V ≤ Vout ≤ 3.3 V 2
Minimum Required Load Current, Fixed Output Voltage ILoad 0 mA Fixed Output Voltage 2
Power Supply Input Voltage Vin 20 V 2
Thermal Resistance, Junction-to-Ambient (SO-8) RθJA 160 C/W Case 751 (SO-8) TA = 25C 2
Thermal Resistance, Junction-to-Case (SO-8) RθJC 25 C/W Case 751 (SO-8) TA = 25C 2
Operating Die Junction Temperature Range TJ -40 150 C 2
Operating Ambient Temperature Range TA -40 125 C MC33269 2
Storage Temperature Tstg -55 150 C 2
ESD Human Body Model ESD 4000 V HBM 2
ESD Machine Model ESD 400 V MM 2

CAD (KiCad official)

  • Symbol: MC33269DR2-3.3G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: mc33269dr2-3-3g-etched.step / mc33269dr2-3-3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc33269dr2-3-3g.step / mc33269dr2-3-3g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (12 pp, sha256 677b41f8ce6bc254, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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