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Diodes Incorporated AZ1084D-1.5TRG1
- Part No.:
- AZ1084D-1.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AZ1084D-1.5TRG1.pdf
- Description:
- IC REG LINEAR 1.5V 5A TO252-2
- Quantity:
- Payment:
- Shipping:
Inventory:3,105
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Product details
Overview
AZ1084D-1.5TRG1 from Diodes Incorporated is a fixed-output 1.5V, 5A low dropout linear regulator in TO-252-2 (3) package with 1.3V typical dropout at full load, on-chip thermal limiting, and ±1% output voltage accuracy over 0°C to +125°C junction temperature. It delivers stable microprocessor supply rails in desktop PCs and embedded systems where input-to-output differential is constrained.
For engineers reviewing the AZ1084D-1.5TRG1 datasheet, AZ1084D-1.5TRG1 pinout, AZ1084D-1.5TRG1 application, or AZ1084D-1.5TRG1 equivalent, key selection criteria include dropout voltage at 5A, thermal resistance (θJA = 100°C/W), load regulation (±15mV), and compatibility with standard PCB pad layouts for TO-252-2 (3) packages.
Technical Context
The AZ1084D-1.5TRG1 implements a trimmed band-gap reference and internal current limiting circuit to maintain regulation under overload conditions. Its architecture integrates fixed resistors for 1.5V output, eliminating external feedback components.
Thermal protection activates when junction temperature exceeds +150°C, and the device sustains operation across 0°C to +125°C junction range with 6.5A current limit and 5mA quiescent current. Dropout behavior remains stable up to 1.5V at 5A load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.5V ±1% (ensures stable core supply for 1.5V logic domains) |
| Max Output Current | 5A continuous (supports high-current microprocessor I/O rails) |
| Dropout Voltage | 1.3V typical at 5A (enables operation with VIN as low as 2.8V) |
| Load Regulation | ±15mV (0–5A load step; maintains voltage stability during CPU burst loads) |
| Line Regulation | ±1mV (3.0–10V input range; rejects input ripple in post-regulation) |
| Thermal Resistance θJA | 100°C/W (TO-252-2 (3); requires minimal copper area for thermal management) |
| Operating Junction Temp | 0°C to +125°C (supports industrial-grade embedded deployment) |
Pinout & Package
Package: TO-252-2 (3), surface-mount, lead-free, RoHS-compliant, with exposed thermal pad (pin 2 functions as output and thermal tab).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INPUT | Unregulated input supply connection; must be decoupled with ≥10µF ceramic capacitor |
| 2 | OUTPUT | Regulated 1.5V output and thermal pad; soldered to large copper pour for heat dissipation |
| 3 | ADJ/GND | Ground reference terminal; connects to system ground plane with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 1.3V at 5A enables use with tightly regulated intermediate bus voltages |
| Integrated thermal limiting | Shuts down at +150°C junction temperature to prevent permanent damage |
| Fixed 1.5V output | Eliminates external resistor network, reducing BOM count and layout complexity |
| Lead-free & green packaging | TO-252-2 (3) meets RoHS 2 and halogen/antimony-free "Green" requirements |
| Current limiting | 6.5A foldback protection prevents catastrophic failure during short-circuit events |
Applications
| Microprocessor Core Supply | Battery Charger Post-Regulation |
|---|---|
Use Scenario: Providing clean 1.5V rail to ARM Cortex-A series SoCs in industrial gateways. IC Role / Device Role / Timing Role: Primary voltage regulator delivering stable core power with fast transient response to dynamic CPU load changes. Use Value: Maintains <±15mV output deviation during 0–5A load steps, preventing logic errors or reset events. | Use Scenario: Final-stage regulation after switching charger IC in 12V automotive battery charging modules. IC Role / Device Role / Timing Role: Low-noise linear post-regulator suppressing switching ripple from upstream DC-DC converter. Use Value: Achieves 72dB PSRR at 120Hz, reducing residual ripple to <100µV RMS on battery-side 1.5V rail. |
| Desktop PC I/O Power | Embedded FPGA Configuration Supply |
Use Scenario: Powering PCIe slot interface logic and USB controller I/O banks in compact desktop motherboards. IC Role / Device Role / Timing Role: Fixed-output LDO supplying noise-sensitive digital I/O circuits with tight voltage tolerance. Use Value: ±1% initial accuracy and ±0.5% temperature drift ensure compliance with PCIe 5.0 VIO spec (1.5V ±1.5%). | Use Scenario: Delivering configuration voltage to Xilinx Artix-7 FPGA bank 0 requiring 1.5V ±2% during bitstream loading. IC Role / Device Role / Timing Role: Dedicated low-dropout regulator for FPGA configuration domain with independent thermal management. Use Value: 100°C/W θJA allows direct mounting on 2oz copper layer without heatsink, simplifying board stack-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP2112K-1.5TRG1 | Lower max current (600mA), smaller SOT-23-5 package, higher dropout (300mV @ 600mA) | Suitable only for low-power peripherals, not microprocessor cores | Select only for space-constrained, sub-1A applications where thermal budget permits higher dropout |
| TLV1117-15CDCYR | 1A max output, SOIC-8 package, 1.2V dropout @ 1A, ±2% accuracy | Limited to mid-power logic; lacks 5A capability and TO-252 thermal performance | Choose when cost sensitivity outweighs current demand and thermal requirements |
Compared with AP2112K-1.5TRG1 and TLV1117-15CDCYR, AZ1084D-1.5TRG1 uniquely supports 5A continuous load in a thermally optimized TO-252-2 (3) package while maintaining 1.5V accuracy within ±1%, making it irreplaceable for high-current embedded processor supplies.
Availability
AZ1084D-1.5TRG1 is available at Aetrix Electronics and suitable for microprocessor core supply, battery charger post-regulation, and desktop PC I/O power requiring stable component supply across industrial temperature ranges and long-lifecycle programs.
Supply support for AZ1084D-1.5TRG1 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, engineered specifically for post-regulation and microprocessor supply applications demanding low dropout, robust thermal protection, and tight DC accuracy.
FAQ
What is the maximum input voltage rating for AZ1084D-1.5TRG1?
The absolute maximum input voltage is 12V per the datasheet's Recommended Operating Conditions table. Operation above 10V is limited to transient spikes only; sustained input above 6V violates the specified 3.0V ≤ VIN ≤ 6V range for 1.5V output versions and risks exceeding safe power dissipation limits in TO-252-2 (3) package.
Does AZ1084D-1.5TRG1 require an external capacitor on the ADJ/GND pin?
No - the ADJ/GND pin (Pin 3) is internally connected to ground for fixed-output variants like AZ1084D-1.5TRG1 and does not require external capacitors. Unlike adjustable versions, no feedback network or compensation capacitor is needed, simplifying design and reducing component count.
Can AZ1084D-1.5TRG1 be used without a heatsink in free-air conditions?
Yes, but only at reduced load. With θJA = 100°C/W and TJ(max) = +150°C, maximum continuous current without heatsink is ~1.25A at 25°C ambient. Full 5A operation requires ≥25 cm² of 2oz copper pour connected to Pin 2 (OUTPUT/tab) to achieve effective thermal spreading and maintain junction temperature within 125°C operating limit.
Is AZ1084D-1.5TRG1 still in active production?
No - the datasheet explicitly states "OBSOLETE – PART DISCONTINUED" and recommends migration to AZ1084C. However, AZ1084D-1.5TRG1 remains available through Aetrix Electronics for legacy program support, with full traceability and documented lifecycle status for industrial and medical OEMs managing long-term production continuity.
AZ1084D-1.5TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- 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):
- 1.5V
- 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-252-3
AZ1084D-1.5TRG1 FAQ
1.How can I place an order for AZ1084D-1.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ1084D-1.5TRG1 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 AZ1084D-1.5TRG1 reliable?
The price and inventory of AZ1084D-1.5TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ1084D-1.5TRG1 is usually 5 days.
3.What payment methods are accepted for AZ1084D-1.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ1084D-1.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ1084D-1.5TRG1?
AZ1084D-1.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ1084D-1.5TRG1 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 AZ1084D-1.5TRG1?
For technical support, including AZ1084D-1.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ1084D-1.5TRG1 requirements.
6.How does Aetrix verify that AZ1084D-1.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AZ1084D-1.5TRG1 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 AZ1084D-1.5TRG1 meets industry standards.
7.What is the process for return or replacement of AZ1084D-1.5TRG1?
All AZ1084D-1.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ1084D-1.5TRG1, 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 AZ1084D-1.5TRG1 part is unused and in its original packaging.
Return procedure for AZ1084D-1.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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