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Alpha & Omega Semiconductor Inc. AOZ1334ADI-01
- Part No.:
- AOZ1334ADI-01
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package:
- -
- Datasheet:
-
AOZ1334ADI-01.pdf
- Description:
- 5.5V/10A SINGLE CHANNEL SMART LO
- Quantity:
- Payment:
- Shipping:
Inventory:5,037
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Product details
Overview
AOZ1334ADI-01 from Alpha and Omega Semiconductor is a single-channel smart load switch integrating an n-channel MOSFET with 5 mΩ RDS(ON) at 5 V VBIAS, 10 A continuous current capability, and 3.2–5.5 V bias supply range. It operates with input voltage from 0.8 V to VBIAS−1.5 V and features integrated 220 Ω output discharge for rapid turn-off in portable computing power rails.
For engineers reviewing the AOZ1334ADI-01 datasheet, pinout, applications, or equivalent options, key selection criteria include low quiescent current (35 µA), fast 8.5 µs turn-on rise time, thermal performance in DFN-8L (θJA = 60°C/W), and compatibility with TTL/CMOS logic control signals.
Technical Context
The AOZ1334ADI-01 implements a single high-side n-channel MOSFET switch with internal gate driver and logic-level ON pin interface. Its control architecture accepts 1.2 V high-threshold and 0.5 V low-threshold logic inputs, enabling direct interfacing with standard digital I/O without level shifting.
Thermal management relies on the exposed thermal pad in its 3 mm × 3 mm DFN-8L package, delivering θJC = 8°C/W to support 10 A continuous operation within −40°C to +85°C ambient. The integrated 220 Ω pull-down resistor ensures controlled output discharge during disable, eliminating external components in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBIAS Range | 3.2 V to 5.5 V - powers internal circuitry and enables optimal RDS(ON) performance across industrial-grade supply rails. |
| RDS(ON) | 5 mΩ max at VBIAS = 5 V, VIN = 1.05 V, TA = 85°C - minimizes conduction loss and self-heating under full 10 A load. |
| IQ | 35 µA typical - enables ultra-low standby power in always-on subsystems like USB-C port controllers or SSD power sequencing. |
| tR (Rise Time) | 8.5 µs typical - ensures clean, controlled inrush limiting without excessive voltage droop on sensitive downstream loads. |
| Output Discharge R | 220 Ω integrated - discharges output capacitance rapidly upon disable, preventing floating or unintended wake-up in sleep modes. |
| Ambient Temp Range | −40°C to +85°C - qualified for use in consumer portable devices including ultrabooks and tablets operating in real-world thermal environments. |
| ESD Rating | 2 kV HBM / 1 kV CDM - provides robust handling margin during board assembly and end-user handling in unshielded enclosures. |
Pinout & Package
AOZ1334ADI-01 is housed in a thermally enhanced 3 mm × 3 mm DFN-8L package with exposed thermal pad (EPAD) on the bottom surface for PCB-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, EPAD | IN | Main power input terminal; connects to upstream rail (0.8 V to VBIAS−1.5 V); EPAD must be soldered to ground plane for thermal and electrical integrity. |
| 3 | VBIAS | Bias supply input (3.2–5.5 V); powers internal logic and gate driver; decoupling capacitor required per datasheet layout guidelines. |
| 4 | ON | Active-high enable input; TTL/CMOS compatible; must not float; 1.2 V min high threshold ensures noise immunity in noisy digital environments. |
| 5 | GND | Analog/digital ground reference; ties internal circuitry and EPAD to system ground; low-inductance connection critical for stability. |
| 6, 7, 8 | OUT | Switched output terminals; paralleled for 10 A current path; connects to load; requires local 0.1 µF bypass capacitor per datasheet recommendation. |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(ON) MOSFET | 5 mΩ at 5 V VBIAS enables <10 mW conduction loss at 10 A, reducing thermal stress in compact portable designs. |
| Integrated Output Discharge | 220 Ω internal resistor eliminates need for external pull-down, saving board space and BOM cost in battery-backed systems. |
| Fast Switching | 8.5 µs rise time supports dynamic power gating in SSDs and mobile SoC subsystems without compromising transient response. |
| Wide Input Voltage Range | 0.8 V to VBIAS−1.5 V allows use with sub-1 V core rails (e.g., 0.85 V GPU domains) while maintaining low RDS(ON). |
| Thermally Optimized Package | DFN-8L with EPAD achieves θJA = 60°C/W - enables 10 A operation on 2-layer PCBs without heatsinks in ultrabook applications. |
Applications
| Ultrabook Power Sequencing | SSD Main Power Switch |
|---|---|
|
Use Scenario: Enables/disables 3.3 V or 1.8 V power domains for discrete GPU or memory subsystems during S0ix sleep states. IC Role / Device Role / Timing Role: High-side load switch controlling rail activation timing with precise 8.5 µs rise/fall edges to meet PCIe and NVMe power state transition requirements. Use Value: Eliminates external discharge FET and reduces footprint by 30% versus discrete solutions while maintaining 10 A capacity and thermal safety margin. |
Use Scenario: Powers NVMe SSD controller and NAND flash array only when host commands are active, minimizing idle power draw. IC Role / Device Role / Timing Role: Smart load switch providing controlled inrush limiting and fast output discharge to prevent data corruption during hot-plug or reset events. Use Value: Integrated 220 Ω discharge resistor ensures <100 µs output decay, meeting NVMe 2.0 power-state exit timing specs without added components. |
| Tablet PC USB-C Port Power | Set-Top Box HDMI Hot-Plug Detection |
|
Use Scenario: Supplies regulated 5 V or 3.3 V to USB-C PD sink circuits and Type-C controller ICs based on enumeration status. IC Role / Device Role / Timing Role: Single-channel load switch with CMOS-compatible ON pin, enabling direct GPIO control from application processor for dynamic port power management. Use Value: 35 µA quiescent current extends battery life during tablet standby; low RDS(ON) prevents voltage drop across long flex cables feeding USB-C ports. |
Use Scenario: Isolates HDMI receiver power domain until hot-plug detection signal confirms cable insertion and EDID handshake completion. IC Role / Device Role / Timing Role: Controlled power switch ensuring HDMI PHY and HDCP engine receive stable 3.3 V only after valid HPD assertion, avoiding false detection. Use Value: Fast 3.5 µs turn-off time guarantees immediate rail shutdown upon HPD deassertion, preventing spurious HDCP re-authentication attempts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL7407LPWR | 7-channel low-side driver (not load switch); 300 mA per channel; no integrated discharge; higher RDS(ON) (~1 Ω). | Designed for LED/relay driving, not high-current rail switching; lacks thermal rating for >1 A continuous loads. | Select only for multi-load low-current control where isolation and discharge are non-critical. |
| TPS22919DCKR | Single-channel load switch; 4 A max; 22 mΩ RDS(ON); 3.6–5.5 V VBIAS; no integrated discharge resistor. | Lower current rating and higher on-resistance limit use to auxiliary rails (e.g., audio codec, sensor hubs) rather than main SoC domains. | Choose when 4 A suffices and external discharge can be added; offers tighter VIN range (1.1–5.5 V) for legacy 1.2 V rails. |
Compared with TPL7407LPWR and TPS22919DCKR, the AOZ1334ADI-01 uniquely delivers 10 A capacity with 5 mΩ RDS(ON) and integrated 220 Ω discharge in a 3×3 mm footprint-making it the only option among the three qualified for primary power gating in ultrabooks and NVMe SSDs.
Availability
AOZ1334ADI-01 is available at Aetrix Electronics and suitable for portable computers, SSD power management, and tablet PC subsystems requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for AOZ1334ADI-01 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Alpha and Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-efficiency MOSFETs, IGBTs, and power management ICs for computing, consumer, and industrial markets.
The AOZ1334ADI-01 belongs to AOS's Smart Load Switch product line, engineered specifically for high-current, low-voltage rail control in space-constrained portable electronics where thermal efficiency and integration density are critical.
FAQ
What is the maximum continuous current rating for the AOZ1334ADI-01?
The AOZ1334ADI-01 is rated for 10 A continuous current at TA = 25°C with proper PCB thermal design. Derating applies above 25°C ambient; at 85°C ambient, the device maintains 10 A capability when using the recommended 3×3 mm DFN-8L land pattern with full EPAD grounding and ≥2 oz copper layers.
Does the AOZ1334ADI-01 require an external pull-down resistor on the ON pin?
No, the AOZ1334ADI-01 does not require an external pull-down on the ON pin because it has internal input hysteresis and defined logic thresholds (VONH = 1.2 V, VONL = 0.5 V). However, leaving the ON pin floating is prohibited per datasheet guidance; a weak external pull-down (e.g., 1 MΩ) is recommended if system-level noise immunity is critical.
Can the AOZ1334ADI-01 operate with a 1.0 V input rail?
Yes, the AOZ1334ADI-01 supports input voltages down to 0.8 V when VBIAS ≥ 2.3 V. For a 1.0 V input rail, VBIAS must be set to at least 2.5 V (per VIN ≤ VBIAS−1.5 V constraint); however, optimal RDS(ON) performance requires VBIAS ≥ 3.2 V, so 1.0 V operation is feasible but with slightly elevated on-resistance.
How does the integrated 220 Ω discharge resistor function in the AOZ1334ADI-01?
The AOZ1334ADI-01 activates its internal 220 Ω discharge path between OUT and GND only when the ON pin is low. This resistor pulls the output to ground within microseconds, ensuring downstream circuits fully power down and preventing latch-up or false wake-up in sleep states-eliminating the need for external discharge FETs or resistors in most portable designs.
What is the thermal resistance (θJA) of the AOZ1334ADI-01 in its standard DFN-8L package?
The AOZ1334ADI-01 has a junction-to-ambient thermal resistance (θJA) of 60°C/W when mounted on a standard 2-layer JEDEC test board per JESD51-7. With enhanced PCB layout-including full EPAD soldering, 2 oz copper, and thermal vias-the effective θJA can improve to ~40°C/W, enabling sustained 10 A operation at 85°C ambient.
AOZ1334ADI-01 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- -
- Number of Outputs:
- -
- Ratio - Input:Output:
- -
- Output Configuration:
- -
- Output Type:
- -
- Interface:
- -
- Voltage - Load:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Current - Output (Max):
- -
- Rds On (Typ):
- -
- Input Type:
- -
- Features:
- -
- Fault Protection:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
AOZ1334ADI-01 FAQ
1.How can I place an order for AOZ1334ADI-01 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ1334ADI-01 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AOZ1334ADI-01 reliable?
The price and inventory of AOZ1334ADI-01 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ1334ADI-01 is usually 5 days.
3.What payment methods are accepted for AOZ1334ADI-01?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ1334ADI-01 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ1334ADI-01?
AOZ1334ADI-01 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ1334ADI-01 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AOZ1334ADI-01?
For technical support, including AOZ1334ADI-01 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ1334ADI-01 requirements.
6.How does Aetrix verify that AOZ1334ADI-01 is sourced from the original manufacturer or authorized distributors?
All AOZ1334ADI-01 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AOZ1334ADI-01 meets industry standards.
7.What is the process for return or replacement of AOZ1334ADI-01?
All AOZ1334ADI-01 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ1334ADI-01, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AOZ1334ADI-01 part is unused and in its original packaging.
Return procedure for AOZ1334ADI-01:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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