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Diodes Incorporated AZ1086D-ADJTRG1
- Part No.:
- AZ1086D-ADJTRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AZ1086D-ADJTRG1.pdf
- Description:
- IC REG LIN POS ADJ 1.5A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,002
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Product details
Overview
AZ1086D-ADJTRG1 from BCD Semiconductor Manufacturing Limited is an adjustable low-dropout linear regulator delivering up to 1.5A output current with typical dropout voltage of 1.3V at full load, integrated thermal shutdown and current limiting, and reference voltage of 1.225–1.270V - used in post-regulation for switching supplies and microprocessor core power domains.
For engineers reviewing the AZ1086D-ADJTRG1 datasheet, AZ1086D-ADJTRG1 pinout, AZ1086D-ADJTRG1 application, or AZ1086D-ADJTRG1 equivalent, this part supports design of stable, low-noise 1.23V–5.0V adjustable outputs in space-constrained industrial and telecom power rails where thermal robustness and load regulation ≤0.4% are critical.
Technical Context
The AZ1086D-ADJTRG1 implements a bandgap-referenced error amplifier driving a PNP pass transistor, with internal current limiting set at 2.3A and thermal shutdown triggered at 165°C junction temperature. Its adjustable configuration requires two external resistors to set VOUT = VREF × (1 + R2/R1) + IADJ × R2.
It operates across 0–125°C junction temperature range with input voltage up to 15V, supports minimum load current as low as 2mA, and delivers RMS output noise of 0.003% of VOUT. Ripple rejection reaches 75dB at 120Hz with 25μF tantalum output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.5A continuous - sufficient for FPGA I/O banks or DSP core supplies |
| Dropout Voltage | 1.3V typical at 1.5A - enables operation with <2V input-to-output margin |
| Reference Voltage | 1.225–1.270V - sets precision of adjustable output via resistor divider |
| Line Regulation | 0.015% typical - maintains output stability across wide input voltage swings |
| Load Regulation | 0.1% typical - ensures ≤3.3mV shift from 10mA to 1.5A load on 3.3V output |
| Thermal Shutdown | 165°C activation with 30°C hysteresis - prevents permanent damage during overload |
| Ripple Rejection | 75dB at 120Hz - suppresses switching supply ripple without additional filtering |
Pinout & Package
AZ1086D-ADJTRG1 is packaged in TO-252-2 (DPAK) variant with three terminals: INPUT (Pin 1), OUTPUT (Pin 2), and ADJ/GND (Pin 3). The exposed pad is electrically connected to Pin 2 (OUTPUT) and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (INPUT) | Unregulated input supply connection | Accepts 1.4V–15V; must be decoupled with ≥10μF capacitor near device |
| Pin 2 (OUTPUT) | Regulated output node | Delivers adjustable voltage; connects to exposed thermal pad for heat dissipation |
| Pin 3 (ADJ/GND) | Feedback reference and ground return | Sets output via resistor divider; carries only 60–120μA adjust pin current |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 1.3V at 1.5A - enables high-efficiency operation with minimal headroom |
| Integrated protection | Current limit (2.3A) and thermal shutdown (165°C) - eliminates need for external fault management circuitry |
| Adjustable output range | 1.23V to ≥5.0V - configured with two external resistors, supporting diverse rail requirements |
| Stable under light load | Minimum load current as low as 2mA - avoids instability in standby or low-power modes |
| Green RoHS-compliant packaging | G1 suffix indicates halogen-free, lead-free, and green material set - meets IPC-1752 and EU RoHS directives |
Applications
| Microprocessor Core Supply | Battery Charger Reference |
|---|---|
Use Scenario: Providing clean, tightly regulated 1.2V–1.8V supply to ARM Cortex-A series SoC cores in embedded gateways. IC Role / Device Role / Timing Role: Primary LDO post-regulator delivering low-noise bias for CPU voltage domains with fast transient response. Use Value: Maintains ±0.1% load regulation across 0–1.5A step changes, preventing core brownouts during burst processing. |
Use Scenario: Generating precise 2.5V reference for Li-ion battery charge controller IC feedback loop. IC Role / Device Role / Timing Role: Adjustable voltage source setting charge termination threshold with <0.5% total error over temperature. Use Value: Delivers 1.225–1.270V reference with 0.003% RMS noise, minimizing charge voltage drift. |
| Post-Regulation for Buck Converter | Telecom Line Card Power |
Use Scenario: Final-stage regulation after 12V-to-5V buck converter in optical line terminal (OLT) modules. IC Role / Device Role / Timing Role: Low-noise LDO cleaning switching ripple before powering analog PHY circuits. Use Value: Achieves 75dB ripple rejection at 120Hz, reducing conducted EMI into sensitive transceiver stages. |
Use Scenario: Generating 3.3V and 5.0V auxiliary rails for Ethernet PHYs and management MCU on carrier-grade line cards. IC Role / Device Role / Timing Role: High-current, thermally robust LDO operating continuously at 85°C ambient. Use Value: Sustains 1.5A output with θJA = 100°C/W in TO-252-2 package, enabling convection-cooled board layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC29302WU | Higher dropout (0.4V @ 3A), fixed 3.0V/3.3V/5.0V only - no adjustable version | Limited to fixed-output use cases; lacks ADJ pin flexibility | Select when fixed-voltage simplicity outweighs adjustability needs |
| LT1964ES5-ADJ | Lower current (200mA), superior PSRR (70dB @ 1MHz), SOT-23-5 package | Not suitable for >500mA loads; better for noise-sensitive analog signal chains | Prefer for low-current, ultra-low-noise biasing - not a drop-in replacement |
Compared with MIC29302WU and LT1964ES5-ADJ, AZ1086D-ADJTRG1 uniquely balances 1.5A output, adjustable VOUT, and DPAK thermal performance - making it optimal for mid-power digital systems requiring both flexibility and robustness.
Availability
AZ1086D-ADJTRG1 is available at Aetrix Electronics and suitable for telecom line cards, industrial PLC power modules, and embedded gateway designs requiring stable component supply with green RoHS compliance and tape-and-reel logistics support.
Supply support for AZ1086D-ADJTRG1 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
BCD Semiconductor Manufacturing Limited is a Shanghai-based analog and power IC designer specializing in high-reliability, cost-optimized linear regulators, MOSFETs, and mixed-signal solutions for industrial and communications markets.
AZ1086D-ADJTRG1 belongs to the AZ1086 series of low-dropout regulators engineered for post-regulation and microprocessor supply applications where thermal resilience, current capability, and adjustable output are essential.
FAQ
What is the maximum input voltage for AZ1086D-ADJTRG1?
The absolute maximum input voltage is 15V, per the datasheet's Absolute Maximum Ratings table. Operation above this level risks permanent damage. For reliable long-term use, input should remain ≤10V under all conditions, especially at elevated junction temperatures where power dissipation increases.
Can AZ1086D-ADJTRG1 be used without an output capacitor?
No - an output capacitor ≥10μF (tantalum or low-ESR ceramic) is mandatory for stability and transient response. Omitting it causes oscillation and potential thermal shutdown. The datasheet specifies 22μF for optimal load transient performance, and capacitor ESR must stay within 0.1–1Ω range.
How does the ADJ pin current affect output accuracy?
Adjust pin current (60–120μA) flows through R2 in the feedback divider, adding an offset term: VOUT = VREF(1 + R2/R1) + IADJR2. To limit error to <1%, R2 should be ≤10kΩ. Higher R2 values increase sensitivity to IADJ variation and temperature drift.
Is AZ1086D-ADJTRG1 compatible with lead-free reflow profiles?
Yes - the G1 suffix confirms green, lead-free construction compliant with JEDEC J-STD-020D. It supports peak reflow temperatures up to 260°C for 10 seconds. Thermal resistance data (θJA = 100°C/W) assumes standard PCB copper pour per TO-252-2 footprint guidelines.
AZ1086D-ADJTRG1 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:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 15V
- Voltage - Output (Min/Fixed):
- 1.25V
- Voltage - Output (Max):
- 13.5V
- Voltage Dropout (Max):
- 1.5V @ 1.5A
- Current - Output:
- 1.5A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (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
AZ1086D-ADJTRG1 FAQ
1.How can I place an order for AZ1086D-ADJTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ1086D-ADJTRG1 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 AZ1086D-ADJTRG1 reliable?
The price and inventory of AZ1086D-ADJTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ1086D-ADJTRG1 is usually 5 days.
3.What payment methods are accepted for AZ1086D-ADJTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ1086D-ADJTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ1086D-ADJTRG1?
AZ1086D-ADJTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ1086D-ADJTRG1 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 AZ1086D-ADJTRG1?
For technical support, including AZ1086D-ADJTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ1086D-ADJTRG1 requirements.
6.How does Aetrix verify that AZ1086D-ADJTRG1 is sourced from the original manufacturer or authorized distributors?
All AZ1086D-ADJTRG1 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 AZ1086D-ADJTRG1 meets industry standards.
7.What is the process for return or replacement of AZ1086D-ADJTRG1?
All AZ1086D-ADJTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ1086D-ADJTRG1, 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 AZ1086D-ADJTRG1 part is unused and in its original packaging.
Return procedure for AZ1086D-ADJTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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