My Inquiry
My Account
Diodes Incorporated AZ1084S2-2.5TRE1
- Part No.:
- AZ1084S2-2.5TRE1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
AZ1084S2-2.5TRE1.pdf
- Description:
- IC REG LINEAR 2.5V 5A TO263-2
- Quantity:
- Payment:
- Shipping:
Inventory:2,024
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AZ1084S2-2.5TRE1 from Diodes Incorporated is a fixed-output 2.5V, 5A low-dropout linear regulator in TO-263-2 package, featuring 1.3V typical dropout at full load, on-chip thermal limiting, and ±1% output voltage accuracy over 0°C to +125°C. It delivers stable microprocessor core supply for embedded RISC systems requiring high-current, low-noise DC regulation with minimal input–output differential.
For engineers reviewing the AZ1084S2-2.5TRE1 datasheet, AZ1084S2-2.5TRE1 pinout, AZ1084S2-2.5TRE1 application, or AZ1084S2-2.5TRE1 equivalent, key selection criteria include dropout voltage at 5A, thermal resistance (θJC = 4.15°C/W), load regulation (±7 mV), and compatibility with standard TO-263-2 PCB footprints and heatsinking.
Technical Context
The AZ1084S2-2.5TRE1 integrates a trimmed band-gap reference and current-limiting circuitry to maintain output stability under transient load steps up to 5A. Its internal protection architecture combines foldback current limiting and thermal shutdown triggered at junction temperatures exceeding +150°C.
Designed for post-regulation after switching converters, it operates with input voltages up to 12V and maintains line regulation of ±0.5 mV across 4.0V–10V input range. The fixed 2.5V output eliminates external resistor networks, reducing BOM count and layout sensitivity compared to adjustable variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% (ensures compliance with 2.5V I/O or core rail tolerances) |
| Max Output Current | 5A continuous (supports high-power FPGA or SoC core domains) |
| Dropout Voltage | 1.3V typical at 5A (enables operation from 3.8V input when VOUT = 2.5V) |
| Load Regulation | ±7 mV (0–5A load step; critical for stable logic-level signaling) |
| Thermal Resistance θJC | 4.15°C/W (TO-263-2 package; enables direct heatsink mounting for >3W dissipation) |
| Operating Junction Temp | 0°C to +125°C (supports industrial-grade embedded deployment without derating) |
| Quiescent Current | 5–10 mA (low bias draw preserves efficiency in always-on subsystems) |
Pinout & Package
Package: TO-263-2 (D²PAK-2), surface-mount, thermally enhanced with exposed tab (pin 2) for direct heatsink attachment. Pin 1 = INPUT, Pin 2 = OUTPUT (tab), Pin 3 = GND/ADJ (tied internally to GND for fixed versions).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input | Unregulated DC input (max 12V); requires ≥10 µF ceramic input capacitor for stability |
| 2 | Output / Tab | Regulated 2.5V output and thermal path; must be soldered to large copper pour or heatsink |
| 3 | GND | Ground reference for internal bandgap and error amplifier; low-inductance connection required |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout at full load | 1.3V @ 5A enables use with 3.3V intermediate bus rails |
| Integrated thermal protection | Automatic shutdown above +150°C junction temperature prevents permanent damage |
| Fixed 2.5V output | Eliminates external resistor divider, reducing layout complexity and drift sources |
| Lead-free & RoHS-compliant | TO-263-2 package meets EU Directive 2011/65/EU with <900 ppm Br/Cl total |
| High PSRR | 72 dB @ 120 Hz suppresses ripple from upstream switching converters |
Applications
| Microprocessor Core Supply | Battery Charger Post-Regulation |
|---|---|
Use Scenario: Powering ARM Cortex-A series SoCs in industrial gateways requiring clean 2.5V core voltage. IC Role / Device Role / Timing Role: Primary LDO delivering regulated core rail with fast transient response to CPU burst loads. Use Value: 1.3V dropout allows operation from 3.8V battery-derived input; ±7 mV load regulation ensures logic-level integrity during 0–5A load transients. | Use Scenario: Final-stage regulation in multi-cell Li-ion charger systems where switching stage output exhibits residual ripple. IC Role / Device Role / Timing Role: Low-noise post-regulator suppressing 120Hz ripple from AC-DC adapter or buck converter. Use Value: 72 dB PSRR at 120 Hz reduces ripple to <35 µV RMS; thermal shutdown protects against overcharge-induced overheating. |
| Desktop PC VRM Auxiliary Rail | RISC Processor I/O Supply |
Use Scenario: Generating auxiliary 2.5V rail for DDR memory termination or PCIe slot logic in compact desktop motherboards. IC Role / Device Role / Timing Role: Secondary LDO supplying noise-sensitive interface circuitry adjacent to high-speed digital traces. Use Value: 0.003% RMS output noise minimizes jitter on timing-critical signals; TO-263-2 footprint supports automated reflow assembly. | Use Scenario: Powering I/O banks of RISC-V microcontrollers in edge sensor nodes operating across -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Fixed-output regulator providing stable interface voltage independent of load or temperature variation. Use Value: ±1% output tolerance maintained over 0–125°C junction range ensures reliable level-shifting; 1000-hour long-term stability <0.5% guarantees field reliability. |
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 |
|---|---|---|---|
| AP7361-25SG-13 | Lower current (300mA), smaller SOT-23 package, higher dropout (300mV @ 300mA) | Suitable only for low-power peripherals-not microprocessor cores | Select only for space-constrained, sub-500mA applications where thermal performance is secondary |
| TLV1117-25CDCYR | 3A rating, SOT-223 package, 1.2V dropout @ 3A, no integrated thermal shutdown hysteresis | Limited to ≤3A loads; less robust under sustained overload | Acceptable for cost-sensitive 3A designs but requires external thermal monitoring for 5A-equivalent use cases |
Compared with AP7361-25SG-13 and TLV1117-25CDCYR, the AZ1084S2-2.5TRE1 uniquely supports 5A continuous output in a thermally optimized TO-263-2 package with guaranteed thermal shutdown and <1% output tolerance-making it the sole viable option for high-current, industrial-grade 2.5V regulation.
Availability
AZ1084S2-2.5TRE1 is available at Aetrix Electronics and suitable for microprocessor core supply, battery charger post-regulation, and RISC processor I/O supply requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for AZ1084S2-2.5TRE1 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 in power-dense embedded systems where thermal efficiency and output precision are critical.
FAQ
What is the maximum input voltage for AZ1084S2-2.5TRE1?
The absolute maximum input voltage is 12V per the datasheet's Recommended Operating Conditions table. Operation above this risks permanent damage. For reliable 2.5V output, minimum input is 3.8V (2.5V + 1.3V dropout), and recommended range is 4.0V to 10V to ensure specified load and line regulation performance.
Does AZ1084S2-2.5TRE1 require an external capacitor on the ADJ/GND pin?
No. The AZ1084S2-2.5TRE1 is a fixed-output variant; pin 3 is internally connected to ground and does not require external components. Only adjustable versions (e.g., AZ1084S2-ADJTRE1) need external resistors between ADJ and GND/OUTPUT to set VOUT.
Can AZ1084S2-2.5TRE1 be paralleled for higher current?
No-this device lacks built-in current-sharing circuitry. Paralleling without external ballast resistors or active control causes unequal current distribution and thermal runaway. For >5A requirements, select a single higher-current regulator or redesign with multiphase switching architecture.
Is AZ1084S2-2.5TRE1 still in active production?
No-the datasheet explicitly states "OBSOLETE – PART DISCONTINUED" and recommends migration to AZ1084C. However, Aetrix Electronics maintains legacy inventory with full traceability and offers lifecycle coordination support for existing designs dependent on this part.
AZ1084S2-2.5TRE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- 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):
- 2.5V
- 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
AZ1084S2-2.5TRE1 FAQ
1.How can I place an order for AZ1084S2-2.5TRE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ1084S2-2.5TRE1 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 AZ1084S2-2.5TRE1 reliable?
The price and inventory of AZ1084S2-2.5TRE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ1084S2-2.5TRE1 is usually 5 days.
3.What payment methods are accepted for AZ1084S2-2.5TRE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ1084S2-2.5TRE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ1084S2-2.5TRE1?
AZ1084S2-2.5TRE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ1084S2-2.5TRE1 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 AZ1084S2-2.5TRE1?
For technical support, including AZ1084S2-2.5TRE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ1084S2-2.5TRE1 requirements.
6.How does Aetrix verify that AZ1084S2-2.5TRE1 is sourced from the original manufacturer or authorized distributors?
All AZ1084S2-2.5TRE1 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 AZ1084S2-2.5TRE1 meets industry standards.
7.What is the process for return or replacement of AZ1084S2-2.5TRE1?
All AZ1084S2-2.5TRE1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ1084S2-2.5TRE1, 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 AZ1084S2-2.5TRE1 part is unused and in its original packaging.
Return procedure for AZ1084S2-2.5TRE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AZ1084S2-2.5TRE1 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
