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AOZ1282CI-2

Alpha Omega Semicon · DC-DC Converters · SOT-23-6

AOZ1282CI-2 from Alpha Omega Semicon, in a SOT-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 BST input Bootstrap voltage input for the high-side driver supply, with a 100nF capacitor connected between BST and LX.
2 GND power_in Ground reference pin for the device.
3 FB input Feedback input regulated to 0.8V; output voltage is set by a resistor divider between the output and GND.
4 EN input Active-high enable pin that must be connected to VIN through a current-limiting resistor and must not be left floating.
5 VIN power_in Supply voltage input with a range of 4.5V to 36V; the device starts up when VIN rises above the UVLO threshold.
6 LX output PWM output that connects to the inductor.

Key specifications

Parameter Value
Manufacturer Alpha Omega Semicon
Package SOT-23-6
Category Power Management (PMIC)
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
Supply Voltage (VIN) VIN 4.5 36 V 3
Output Voltage (VOUT) VOUT 0.8 V 3
Ambient Temperature (TA) TA -40 85 °C 3
Supply Voltage (VIN) VIN 40 V 3
EN to GND -0.3 40 V 3
FB to GND -0.3 6 V 3
LX to GND -0.7 V 3
Junction Temperature (TJ) TJ 150 °C 3
Storage Temperature (TS) TS -65 150 °C 3
ESD Rating 2 kV 3
Feedback Voltage VFB 784 800 816 mV TA = 25ºC 3
Frequency fO 800 1000 1200 kHz 3
Current Limit ILIM 0.75 0.95 A 3
EN Input Threshold (Off threshold / On threshold) VEN_OFF, VEN_ON 0.704 0.8 0.896 V Off threshold / On threshold 3
Supply Current (Quiescent) IIN 1 1.5 mA IOUT = 0, VFB = 1V, VEN > 1.2V 3
Input Under-Voltage Lockout Threshold (rising) VUVLO 2.9 V VIN rising 3
Input Under-Voltage Lockout Threshold (falling) VUVLO 2.3 V VIN falling 3
UVLO Hysteresis 260 mV 3
Shutdown Supply Current IOFF 8 µA VEN = 0V 3
Load Regulation VFB_LOAD 0.5 % 120mA < Load < 1.08A 3
Line Regulation VFB_LINE 0.03 %/V Load = 600mA 3
Feedback Voltage Input Current IFB 500 nA VFB = 800mV 3
EN Input Hysteresis VEN_HYS 200 mV 3
Enable Input Current IEN 3 µA 3
Maximum Conversion Ratio DMAX 97 % 120mA 3
Minimum On Time TON_MIN 150 ns 3
Over-Temperature Shutdown Limit (rising) 150 °C TJ rising 3
Over-Temperature Shutdown Limit (falling) 110 °C TJ falling 3
Soft Start Interval TSS 0.6 ms 3
NMOS Leakage ILEAKAGE 10 µA VEN = 0V, VLX = 0V 3
NMOS On-Resistance RDS(ON) 420 mΩ VIN = 12V 3
Package Thermal Resistance (SOT23-6L) θJA 220 °C/W SOT23-6L 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper 5. Keep sensitive signal traces away from the LX pin. 6. Pour a maximized copper area to the VIN pin, the 10

CAD (KiCad official)

  • Symbol: AOZ1282CI-2
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: aoz1282ci-2-etched.step / aoz1282ci-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aoz1282ci-2.step / aoz1282ci-2.glb are the bare package body.

Provenance

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

  • Datasheet: Alpha Omega Semicon datasheet (13 pp, sha256 d4c44e6f23e93e42, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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