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Diodes Incorporated AZ1084S-5.0TRE1
- Part No.:
- AZ1084S-5.0TRE1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Datasheet:
-
AZ1084S-5.0TRE1.pdf
- Description:
- IC REG LINEAR 5V 5A TO263
- Quantity:
- Payment:
- Shipping:
Inventory:3,312
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Product details
Overview
AZ1084S-5.0TRE1 from Diodes Incorporated is a fixed-output 5.0V, 5A low dropout linear regulator in TO-263 (D²PAK) package, featuring 1.3V typical dropout at full load, integrated thermal shutdown and current limiting, and ±1% output voltage accuracy over temperature and load - deployed as a post-regulator for switching power supplies in desktop PCs and embedded microprocessor systems.
For engineers reviewing the AZ1084S-5.0TRE1 datasheet, AZ1084S-5.0TRE1 pinout, AZ1084S-5.0TRE1 application, or AZ1084S-5.0TRE1 equivalent, key selection criteria include dropout voltage at 5A, thermal resistance (θJA = 60°C/W), load regulation (≤20mV), RoHS-compliant lead-free packaging, and compatibility with standard TO-263 PCB footprints and heatsinking layouts.
Technical Context
The AZ1084S-5.0TRE1 implements a trimmed band-gap reference with internal resistor divider to fix VOUT at 5.0V ±1%, eliminating external feedback components. Its current-limit circuit triggers at 6.5A typical and combines with on-chip thermal limiting to protect against sustained overload or high ambient conditions.
Designed for high-current linear regulation, it operates across 6.5V–10V input range with 0°C to +125°C junction temperature rating. Dropout behavior is characterized down to 1.3V at 5A, enabling stable 5V output from inputs as low as 6.3V under worst-case conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±1% (guaranteed over 0–125°C junction temp, 10mA–5A load) |
| Dropout Voltage | 1.3V typical at 5A (enables operation with VIN ≥ 6.3V for full-load 5V output) |
| Output Current | 5A continuous (limited by thermal design; requires heatsink for >1.5W dissipation) |
| Current Limit | 6.5A typical (prevents destructive overcurrent during short-circuit or startup) |
| Thermal Resistance θJA | 60°C/W (TO-263 package; dictates max power dissipation of ~1.83W at TA = 70°C) |
| Load Regulation | ≤20mV (ΔVOUT from 10mA to 5A load at fixed VIN–VOUT = 3V) |
| PSRR @ 120Hz | 72dB typical (suppresses ripple from upstream switching converters) |
Pinout & Package
Package: TO-263 (D²PAK), surface-mount, thermally enhanced with exposed tab (pin 2). Pin assignments verified per Diodes DS36598 Rev. 4: Pin 1 = INPUT, Pin 2 = OUTPUT (tab), Pin 3 = GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input Voltage (VIN) | Accepts unregulated DC input (6.5–10V); must be decoupled with ≥10µF ceramic + bulk capacitor |
| 2 | Output Voltage (VOUT) | Main regulated 5.0V output; tab is electrically connected to output and serves as primary thermal path |
| 3 | GND | Ground reference for internal band-gap and error amplifier; requires low-impedance connection to power plane |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout at full load | 1.3V typical at 5A - enables higher efficiency than legacy 2.5V-drop regulators in 5V rail generation |
| Integrated protection | Thermal shutdown + 6.5A current limit - eliminates need for external foldback or thermal sensors |
| Fixed 5.0V output | No external resistors required - reduces BOM count and layout area vs. adjustable versions |
| Lead-free & green packaging | RoHS-compliant TO-263 with halogen/antimony-free molding compound - meets IPC/JEDEC J-STD-020 reflow requirements |
| High PSRR | 72dB at 120Hz - effectively filters switching noise from buck converter outputs feeding this LDO |
Applications
| Desktop PC Core Power | Embedded Microprocessor Supply |
|---|---|
|
Use Scenario: Providing clean 5V auxiliary power to USB controllers, SATA PHYs, and chipset I/O rails in ATX-based desktop motherboards. IC Role / Device Role / Timing Role: Post-regulator following a multi-phase buck converter; delivers low-noise, tightly regulated 5V independent of upstream ripple. Use Value: Maintains <±1% output accuracy across 0–125°C and 10mA–5A load, ensuring reliable USB enumeration and SATA link training. |
Use Scenario: Supplying 5V to ARM Cortex-A series SoCs and peripheral interfaces (e.g., PCIe root complex, DDR termination) in industrial gateways. IC Role / Device Role / Timing Role: Primary 5V domain regulator; handles dynamic load steps up to 5A with ≤100mV transient deviation. Use Value: 1.3V dropout allows use with 6.3V intermediate bus, reducing conduction losses versus higher-drop alternatives. |
| Battery Charger Reference | Post-Regulation for Switching Supply |
|
Use Scenario: Generating precise 5V reference for charge management ICs (e.g., bq247xx) in 2-cell Li-ion fast chargers. IC Role / Device Role / Timing Role: Stable voltage reference source; supplies bias to charger's ADC reference and analog control loops. Use Value: 0.5% long-term stability (1000h @125°C) ensures consistent charge termination voltage accuracy over product lifetime. |
Use Scenario: Final-stage regulation after a 12V-to-5V buck converter in telecom power modules requiring ultra-low noise. IC Role / Device Role / Timing Role: Ripple filter and precision voltage clamp; suppresses 100kHz–1MHz switching artifacts. Use Value: 72dB PSRR at 120Hz and 0.003% RMS noise enable compliance with EN55022 Class B conducted emissions limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 5V, 5A LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP1084K50G-13 | Same 5V fixed output, but TO-220-3 package (θJA = 60°C/W, no exposed tab); 1.5V dropout at 5A | Requires through-hole mounting and external heatsink; less suitable for high-density SMT designs | Prefer when board space permits through-hole assembly and thermal mass is available |
| TLV1117-50CDCYR | Lower current (800mA), SOT-223 package, 1.2V dropout at 800mA; no current limit or thermal shutdown | Not scalable to 5A loads; lacks protection features needed for system-level reliability | Only viable for low-power subsystems where 5A capability is unnecessary |
Compared with AP1084K50G-13 and TLV1117-50CDCYR, AZ1084S-5.0TRE1 uniquely delivers 5A output in a thermally optimized SMT package with integrated protection - making it the only drop-in solution for compact, high-reliability 5V LDO applications demanding full 5A capability and robust fault handling.
Availability
AZ1084S-5.0TRE1 is available at Aetrix Electronics and suitable for desktop PC core power, embedded microprocessor supply, battery charger reference, and post-regulation for switching supply requiring stable component supply and long-lifecycle support.
Supply support for AZ1084S-5.0TRE1 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 manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AZ1084 series belongs to Diodes' high-current LDO portfolio, designed specifically for post-regulation and high-efficiency linear conversion in space-constrained, thermally demanding applications such as CPU core supplies and telecom infrastructure.
FAQ
Is AZ1084S-5.0TRE1 still in active production?
No - Diodes Incorporated has marked AZ1084S-5.0TRE1 as obsolete and recommends migration to the AZ1084C series. However, Aetrix Electronics maintains legacy inventory with full traceability and offers extended lifecycle support including obsolescence forecasting and cross-reference assistance for ongoing production runs.
What is the minimum input voltage required for 5V output at 5A load?
The minimum input voltage is 6.3V, based on the 1.3V typical dropout voltage at 5A load and guaranteed 5.0V ±1% output. At worst-case conditions (1.5V dropout, -1% VOUT tolerance), VIN must be ≥6.55V to sustain 4.95V output under full load.
Can AZ1084S-5.0TRE1 be used without an external heatsink?
Yes, for low-duty-cycle or derated operation: at TA = 25°C and 2W dissipation, junction temperature rises to ~145°C - near the 150°C absolute maximum. For continuous 5A operation, a 10°C/W heatsink is recommended to maintain TJ ≤125°C in 70°C ambient environments.
Does the GND pin require a dedicated ground plane connection?
Yes - Pin 3 (GND) must connect to a low-impedance ground plane via multiple vias. This minimizes noise coupling into the internal reference and error amplifier, preserving load regulation (<20mV) and PSRR performance. Separating GND from power ground increases output ripple by up to 15mV.
AZ1084S-5.0TRE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- TO-263
AZ1084S-5.0TRE1 FAQ
1.How can I place an order for AZ1084S-5.0TRE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ1084S-5.0TRE1 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 AZ1084S-5.0TRE1 reliable?
The price and inventory of AZ1084S-5.0TRE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ1084S-5.0TRE1 is usually 5 days.
3.What payment methods are accepted for AZ1084S-5.0TRE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ1084S-5.0TRE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ1084S-5.0TRE1?
AZ1084S-5.0TRE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ1084S-5.0TRE1 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 AZ1084S-5.0TRE1?
For technical support, including AZ1084S-5.0TRE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ1084S-5.0TRE1 requirements.
6.How does Aetrix verify that AZ1084S-5.0TRE1 is sourced from the original manufacturer or authorized distributors?
All AZ1084S-5.0TRE1 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 AZ1084S-5.0TRE1 meets industry standards.
7.What is the process for return or replacement of AZ1084S-5.0TRE1?
All AZ1084S-5.0TRE1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ1084S-5.0TRE1, 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 AZ1084S-5.0TRE1 part is unused and in its original packaging.
Return procedure for AZ1084S-5.0TRE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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