AOZ2369QI-11 >
AOZ2369QI-11
Alpha & Omega Semiconductor Inc.
IC REG BUCK ADJ 30A 28QFN
2125 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 30A 28-PowerTFQFN
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AOZ2369QI-11 Alpha & Omega Semiconductor Inc.
5.0 / 5.0 - (310 Ratings)

AOZ2369QI-11

Product Overview

9228849

DiGi Electronics Part Number

AOZ2369QI-11-DG
AOZ2369QI-11

Description

IC REG BUCK ADJ 30A 28QFN

Inventory

2125 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 0.6V 1 Output 30A 28-PowerTFQFN
Quantity
Minimum 1

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In Stock (All prices are in USD)
  • QTY Target Price Total Price
  • 1 2.8442 2.8442
  • 200 1.1012 220.2400
  • 500 1.0626 531.3000
  • 1000 1.0432 1043.2000
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AOZ2369QI-11 Technical Specifications

Category Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators

Packaging Tape & Reel (TR)

Series EZBuck™

Product Status Active

Function Step-Down

Output Configuration Positive

Topology Buck

Output Type Adjustable

Number of Outputs 1

Voltage - Input (Min) 4.5V

Voltage - Input (Max) 24V

Voltage - Output (Min/Fixed) 0.6V

Voltage - Output (Max) 20.4V

Current - Output 30A

Frequency - Switching 32kHz ~ 1MHz

Synchronous Rectifier Yes

Operating Temperature -40°C ~ 85°C (TA)

Mounting Type Surface Mount

Package / Case 28-PowerTFQFN

Supplier Device Package 28-QFN (5x5)

Base Product Number AOZ2369

Datasheet & Documents

HTML Datasheet

AOZ2369QI-11-DG

Environmental & Export Classification

RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Additional Information

Other Names
5202-AOZ2369QI-11TR
785-AOZ2369QI-11DKR
785-AOZ2369QI-11CT
785-AOZ2369QI-11TR
Standard Package
3,000

Reviews

5.0/5.0-(Show up to 5 Ratings)
桃花***春風
Dec 02, 2025
5.0
價格優勢明顯,質量也令人滿意,購買體驗非常愉快。
Celesti***anderer
Dec 02, 2025
5.0
The affordability and packaging quality make DiGi Electronics a preferred brand.
Heal***Hues
Dec 02, 2025
5.0
Excellent deals coupled with fast shipping make this store a winner.
Everla***ngGlow
Dec 02, 2025
5.0
Every product I've bought from Di Digi Electronics has demonstrated consistent reliability, which is important for my gaming setups.
Whisp***ngWind
Dec 02, 2025
5.0
Customer service was proactive, checking in to ensure I was satisfied with my shopping experience.
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Frequently Asked Questions (FAQ)

What are the key design-in risks when using the AOZ2369QI-11 in a high-current 30A application with tight thermal constraints?

When designing in the AOZ2369QI-11 for a 30A output, thermal management is critical due to power dissipation in both the high-side and low-side MOSFETs. Even with integrated FETs, PCB layout significantly impacts thermal performance. Use a 4-layer PCB with ample copper pour and thermal vias under the exposed pad to maximize heat dissipation. Avoid placing nearby heat-generating components, and ensure adequate airflow if operating above 20A. Monitor junction temperature under load—consider derating current or adding forced cooling if ambient exceeds 60°C. The 28-PowerTFQFN package has high power density, so poor layout can lead to premature thermal shutdown or reliability degradation.

Can the AOZ2369QI-11 be used as a direct replacement for the TI TPS53679 or MP29650 in a 12V to 1V, 30A VR application?

The AOZ2369QI-11 can replace the TPS53679 and MP296500 in many 12V to 1V, 30A applications, but key differences must be addressed. Unlike the TPS53679, the AOZ2369QI-11 does not support PMBus or D-CAP+ control—relying instead on standard voltage-mode control with external compensation. Ensure your design can accommodate this control loop difference, especially for transient response. Also, verify switching frequency compatibility: while the AOZ2369QI-11 supports up to 1MHz, its minimum is 32kHz, which may affect light-load efficiency compared to adaptive-frequency competitors. Always re-validate loop stability and EMI performance after substitution.

How does the AOZ2369QI-11 handle ceramic output capacitors in high di/dt load transient scenarios?

The AOZ2369QI-11 is designed to work with low-ESR ceramic output capacitors, but careful selection is needed to manage high di/dt transients common in CPU or FPGA cores. Use multiple X5R/X7R MLCCs (e.g., 22μF to 47μF total) close to the load to minimize loop inductance. The device’s voltage-mode control with external compensation allows tuning of bandwidth and phase margin—critical when ceramic caps reduce output impedance. Insufficient phase margin can cause ringing or instability during fast load steps. Simulate or bench-test transient response with your actual layout, especially when stepping from 5A to 30A at >5A/μs.

What are the reliability implications of operating the AOZ2369QI-11 near its 24V maximum input voltage in an industrial 24V rail system?

Operating the AOZ2369QI-11 near its 24V input limit in industrial environments requires margining for transients and surges. Real-world 24V rails often experience load dump or ripple exceeding 28V, which can damage the AOZ2369QI-11 despite its 24V rating. Always include an input transient protection circuit (e.g., TVS diode, fuse, or filter) to clamp voltages above 24V. Additionally, higher Vin increases internal power dissipation during switching and dropout—this raises junction temperature and accelerates wearout mechanisms. For long-term reliability, aim to keep typical Vin below 22V and ensure Vcc bias supply stability under line transients.

What are the trade-offs between efficiency and component size when selecting inductors for the AOZ2369QI-11 in a space-constrained design?

Selecting inductors for the AOZ2369QI-11 in space-limited applications involves balancing saturation current, DCR, and size. A smaller inductor (e.g., 0.47μH) allows higher switching frequencies (500kHz–1MHz), enabling a smaller footprint but increases core losses and reduces efficiency—especially at 30A. A larger 1.0μH inductor improves efficiency and reduces ripple current but requires more board space. Choose low-DCR shielded power inductors (e.g., 2520 or 3225 size) rated for >34A saturation current to avoid inductance collapse. Also ensure the inductor’s self-resonant frequency exceeds your switching frequency to prevent resonance issues.

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