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Diodes Incorporated AZ1084T-5.0E1
- Part No.:
- AZ1084T-5.0E1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-220-3
- Datasheet:
-
AZ1084T-5.0E1.pdf
- Description:
- IC REG LINEAR 5V 5A TO220-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,358
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Product details
Overview
AZ1084T-5.0E1 from Diodes Incorporated is a 5A low-dropout linear regulator with fixed 5.0V output, 1.3V typical dropout at full load, integrated thermal shutdown and current limiting, and TO-220-3 package for high-power embedded power rails.
For engineers reviewing the AZ1084T-5.0E1 datasheet, AZ1084T-5.0E1 pinout, AZ1084T-5.0E1 application, or AZ1084T-5.0E1 equivalent, this device serves as a stable post-regulator for switching supplies, microprocessor core voltage delivery, and battery-charger output stages where precision, thermal robustness, and 5A continuous current are required.
Technical Context
The AZ1084T-5.0E1 implements a trimmed band-gap reference with ±1% output voltage accuracy over temperature and load, combined with on-chip current limiting (6.5A typical) and thermal foldback to protect against sustained overload or ambient overheating.
Its architecture supports operation with input voltages up to 12V and maintains load regulation of ≤10mV across 0–5A output current, while line regulation remains ≤10mV over 6.5–10V input range - enabling reliable use in noisy or variable-input systems like desktop PC VRMs and industrial SMPS post-regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±1% (ensures compatibility with 5V logic, USB peripherals, and legacy microcontroller I/O) |
| Max Output Current | 5A continuous (supports high-current FPGA I/O banks or multi-core processor subsystems) |
| Dropout Voltage | 1.3V typical at 5A (enables operation from 6.3V input, minimizing heat dissipation vs. older 2V-drop regulators) |
| Current Limit | 6.5A typical (provides headroom above rated load for transient surges without latch-off) |
| Thermal Shutdown | Active at +150°C junction (prevents permanent damage during sustained overload or poor heatsinking) |
| Operating Junction Temp | 0°C to +125°C (validated for industrial and computing environments without derating) |
| PSRR @ 120Hz | 72dB typical (suppresses ripple from upstream switching converters feeding the LDO) |
Pinout & Package
Package: TO-220-3 (3-pin through-hole, tab-connected to output, RoHS-compliant lead-free finish).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Input) | VIN supply connection | Accepts 6.5–12V input; requires ≥10µF ceramic or tantalum input capacitor for stability |
| 2 (Output) | VOUT regulated output | Delivers 5.0V ±1% at up to 5A; tab is electrically connected to this pin for thermal conduction |
| 3 (GND) | Ground reference | Return path for internal reference and error amplifier; must be low-impedance to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 1.3V typical at 5A enables efficient operation from marginal input rails (e.g., 6.3V SMPS output) |
| Integrated protection | Thermal shutdown + current limiting prevent failure under short-circuit or high-ambient conditions |
| High PSRR | 72dB at 120Hz suppresses switching ripple from upstream DC/DC converters |
| Stable with ceramic output caps | Compatible with low-ESR 22µF ceramic capacitors - reduces board space vs. tantalum alternatives |
| Lead-free & green packaging | TO-220-3 package meets RoHS 2 and halogen/antimony-free "Green" requirements (≤900ppm Br+Cl) |
Applications
| Microprocessor Core Supply | Battery Charger Output Stage |
|---|---|
|
Use Scenario: Powering ARM Cortex-A series SoCs or RISC-V application processors requiring clean, stable 5V I/O or auxiliary rail. IC Role / Device Role / Timing Role: Primary linear post-regulator delivering low-noise 5V from a higher-voltage buck converter output. Use Value: 72dB PSRR and <10mV load regulation ensure digital I/O integrity during burst-mode CPU activity. |
Use Scenario: Final-stage regulation in 5V USB PD or Li-ion charger designs where constant-voltage precision and thermal safety are critical. IC Role / Device Role / Timing Role: Fixed-output LDO providing accurate 5.0V termination voltage with built-in current limit to prevent cell overcharge. Use Value: ±1% output tolerance and 6.5A current limit enable compliance with USB BC1.2 and JEITA charging specifications. |
| Desktop PC VRM Auxiliary Rail | Industrial SMPS Post-Regulation |
|
Use Scenario: Generating auxiliary 5V for chipset, USB hubs, or fan controllers in compact ATX or mini-ITX motherboards. IC Role / Device Role / Timing Role: High-current linear regulator placed downstream of main 12V buck stage to reduce EMI-sensitive noise. Use Value: TO-220-3 package allows direct heatsink mounting; 1.3V dropout minimizes power loss at 5A (vs. 2.5W extra dissipation with 1.8V-drop alternatives). |
Use Scenario: Clean 5V supply for PLC I/O modules, motor driver logic, or sensor interface circuitry in factory automation systems. IC Role / Device Role / Timing Role: Robust linear regulator operating across 0–+70°C ambient with guaranteed 5A output and thermal foldback. Use Value: 0–+125°C junction rating and 150°C absolute max allow operation in sealed enclosures without forced air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2940CT-5.0/NOPB | 3A rated, 0.5V higher dropout (1.8V typ at 3A), no adjustable version offered | Suitable only for ≤3A loads; less efficient at high current due to higher dropout | Select when lower cost and legacy qualification outweigh 5A requirement and efficiency needs |
| TLV1117-50CDCYR | 800mA rated, SOT-223 package, 1.2V dropout at 800mA, no thermal shutdown flag | Limited to low-power peripherals; unsuitable for >1A loads or high-ambient industrial use | Choose only for space-constrained, low-current applications where TO-220 footprint is unacceptable |
Compared with LM2940CT-5.0/NOPB and TLV1117-50CDCYR, AZ1084T-5.0E1 uniquely delivers 5A continuous current in TO-220-3 with 1.3V dropout and full thermal/current protection - making it the only viable option for high-power, thermally demanding 5V linear regulation.
Availability
AZ1084T-5.0E1 is available at Aetrix Electronics and suitable for desktop PC VRM design, industrial SMPS post-regulation, and battery charger output stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for AZ1084T-5.0E1 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.
The AZ1084 series belongs to Diodes' high-current LDO product line, engineered specifically for post-regulation in computing, industrial, and battery-powered systems where thermal resilience and precise fixed-voltage delivery are essential.
FAQ
What is the minimum input voltage required for AZ1084T-5.0E1 to regulate at 5.0V?
The minimum input voltage is 6.5V, derived from the 5.0V output plus the 1.5V maximum dropout specification. At 5A load, the typical dropout is 1.3V, so 6.3V input sustains regulation - but 6.5V ensures margin across temperature, aging, and manufacturing variation per datasheet limits.
Can AZ1084T-5.0E1 be used without a heatsink?
No - at 5A output with 1.3V dropout, power dissipation reaches 6.5W. With θJA = 60°C/W for TO-220-3, junction temperature would exceed +125°C even at 25°C ambient. A heatsink reducing θJA to ≤20°C/W is mandatory for continuous 5A operation.
Does AZ1084T-5.0E1 require an external capacitor on the output pin?
Yes - a minimum 22µF low-ESR capacitor (tantalum or ceramic) is required on the output for stability and transient response. The datasheet specifies 22µF/10µF for typical applications, and omitting it risks oscillation or poor load-step recovery.
Is AZ1084T-5.0E1 compatible with lead-free PCB assembly processes?
Yes - the "E1" suffix denotes Diodes Incorporated's lead-free, RoHS 2-compliant TO-220-3 package, qualified for reflow profiles up to +260°C peak (10-second lead temperature rating), and fully compliant with halogen/antimony-free "Green" standards (≤900ppm Br+Cl).
AZ1084T-5.0E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.5V @ 5A
- Current - Output:
- 5A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 72dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
AZ1084T-5.0E1 FAQ
1.How can I place an order for AZ1084T-5.0E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ1084T-5.0E1 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 AZ1084T-5.0E1 reliable?
The price and inventory of AZ1084T-5.0E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ1084T-5.0E1 is usually 5 days.
3.What payment methods are accepted for AZ1084T-5.0E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ1084T-5.0E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ1084T-5.0E1?
AZ1084T-5.0E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ1084T-5.0E1 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 AZ1084T-5.0E1?
For technical support, including AZ1084T-5.0E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ1084T-5.0E1 requirements.
6.How does Aetrix verify that AZ1084T-5.0E1 is sourced from the original manufacturer or authorized distributors?
All AZ1084T-5.0E1 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 AZ1084T-5.0E1 meets industry standards.
7.What is the process for return or replacement of AZ1084T-5.0E1?
All AZ1084T-5.0E1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ1084T-5.0E1, 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 AZ1084T-5.0E1 part is unused and in its original packaging.
Return procedure for AZ1084T-5.0E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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