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Diodes Incorporated AZ1084CD-2.5TRG1
- Part No.:
- AZ1084CD-2.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AZ1084CD-2.5TRG1.pdf
- Description:
- IC REG LINEAR 2.5V 5A TO252-2
- Quantity:
- Payment:
- Shipping:
Inventory:2,769
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Product details
Overview
AZ1084CD-2.5TRG1 from Diodes Incorporated is a fixed-output 2.5V, 5A low-dropout linear regulator in TO252-2 (3)/(4)/(5) or TO252 (Type CJ) package, featuring 1.35V typical dropout at full load, ±1% output voltage accuracy over temperature and load, and integrated thermal shutdown and current limiting. It delivers stable power to microprocessor cores, FPGA I/O banks, and post-regulation stages in desktop PCs and embedded systems.
For engineers reviewing the AZ1084CD-2.5TRG1 datasheet, AZ1084CD-2.5TRG1 pinout, AZ1084CD-2.5TRG1 application, or AZ1084CD-2.5TRG1 equivalent, key selection criteria include dropout voltage at 5A, thermal resistance (θJC = 7.36°C/W), compatibility with low-ESR ceramic capacitors, and fixed 2.5V output tolerance across 0°C to +125°C junction temperature range.
Technical Context
The AZ1084CD-2.5TRG1 uses a trimmed bandgap reference and internal resistor divider to set its precise 2.5V output without external components. Its control loop maintains regulation under fast load transients, supported by PSRR of 72dB at 120Hz and RMS noise of 0.003% of VOUT (10Hz–10kHz).
Thermal protection activates when junction temperature exceeds +150°C, and current limiting triggers at 6.5A typical. The device operates with input voltages up to 12V and requires only 10µF input and 10µF output ceramic capacitance for stability - no ESR constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5V ±1% (2.475V–2.525V) at 10mA–5A load, enabling direct supply to 2.5V logic rails without trimming. |
| Dropout Voltage | 1.35V typical at 4.5A, allowing operation from 3.85V input while sustaining 5A output - critical for battery-powered post-regulation. |
| Output Current | 5A continuous, supporting high-current digital loads like SoC cores and DDR memory termination. |
| Current Limit | 6.5A typical, providing robust short-circuit protection without latch-up during fault conditions. |
| Thermal Resistance θJC | 7.36°C/W (junction-to-case), enabling efficient heatsinking via PCB copper pour or external heatsink attachment. |
| PSRR | 72dB at 120Hz with 25µF tantalum output cap, suppressing ripple from upstream switching converters. |
| RMS Noise | 0.003% of VOUT (10Hz–10kHz), minimizing jitter in clock-sensitive analog and RF subsystems. |
Pinout & Package
Package: TO252-2 (3), TO252-2 (4), TO252-2 (5), or TO252 (Type CJ) - surface-mount, thermally enhanced plastic package with exposed drain pad for PCB heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INPUT) | Input voltage supply connection | Accepts 4.0V–7.0V input; must be decoupled with ≥10µF ceramic capacitor close to pin for transient response. |
| 2 (OUTPUT) | Regulated 2.5V output node | Delivers up to 5A; requires ≥10µF low-ESR ceramic capacitor on board for stability and load-step performance. |
| 3 (GND) | Ground reference and thermal path | Internally connected to exposed drain pad; must be soldered to large PCB copper area for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout at full load | 1.35V typical at 5A enables use with 3.85V minimum input - extends battery runtime in portable systems. |
| Thermal shutdown protection | Activates at +150°C junction temperature and auto-recovers after cooldown - prevents permanent die damage during overload. |
| Current limiting | 6.5A typical foldback limit protects against sustained short circuits without requiring external fusing. |
| Ceramic capacitor compatible | Stable with ≥10µF X5R/X7R ceramics on input/output - eliminates need for costly tantalum or electrolytic caps. |
| High PSRR at low frequency | 72dB at 120Hz suppresses switching ripple from buck converters feeding the LDO input. |
Applications
| Microprocessor Core Supply | FPGA I/O Bank Regulation |
|---|---|
|
Use Scenario: Powering ARM Cortex-A series CPU cores requiring clean, tightly regulated 2.5V at up to 4.5A peak current. IC Role / Device Role / Timing Role: Primary low-noise, high-current post-regulator delivering stable voltage independent of upstream DC/DC ripple. Use Value: 0.003% RMS noise and 72dB PSRR prevent timing jitter in high-speed core clocks and reduce bit error rates in memory interfaces. |
Use Scenario: Supplying configurable I/O banks on Xilinx Artix-7 FPGAs where VCCO must be precisely 2.5V with fast transient response. IC Role / Device Role / Timing Role: Fixed-output LDO maintaining voltage within ±1% during 0–5A load steps with <100µs recovery time. Use Value: 1.35V dropout allows operation from 3.85V intermediate rail, preserving headroom for dynamic voltage scaling and reducing system power loss. |
| Desktop PC Memory Termination | Industrial PLC Digital I/O Module |
|
Use Scenario: Providing termination voltage (VTT) for DDR3 SDRAM modules in embedded computing platforms. IC Role / Device Role / Timing Role: Precision 2.5V source tracking half-VDDQ with ±1% accuracy and low thermal drift. Use Value: Reference voltage stability of ±0.5% over 0°C–125°C ensures consistent signal integrity across wide ambient operating ranges. |
Use Scenario: Powering isolated digital input circuitry in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Robust 5A regulator surviving 12V bus transients and operating continuously at +85°C ambient. Use Value: Thermal shutdown and current limit protect against field wiring faults, while RoHS/Green compliance meets industrial environmental mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APL5930QBI-2.5TRG1 | 2.5V fixed, 3A output, 0.5V dropout at 3A, θJC = 12°C/W | Limited to 3A; insufficient for 5A microprocessor core loads | Select only if system load stays below 3A and lower thermal resistance is not required. |
| TLV1117-25CDCYR | 2.5V fixed, 800mA output, 1.2V dropout at 800mA, SOT-223 package | Not scalable to 5A; lacks thermal capability for sustained high-power operation | Use only for low-current auxiliary rails - not a functional replacement for AZ1084CD-2.5TRG1's 5A capability. |
Compared with APL5930QBI-2.5TRG1 and TLV1117-25CDCYR, the AZ1084CD-2.5TRG1 uniquely supports 5A continuous output with 1.35V dropout and 7.36°C/W θJC - making it the only viable option for high-current, thermally constrained 2.5V regulation in space-constrained industrial and computing designs.
Availability
AZ1084CD-2.5TRG1 is available at Aetrix Electronics and suitable for desktop PC motherboard design, FPGA-based test equipment development, and industrial PLC power subsystems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for AZ1084CD-2.5TRG1 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 AZ1084C series targets high-current linear regulation in space- and thermal-constrained applications, with design emphasis on low dropout, ceramic-capacitor compatibility, and robust thermal/current protection for mission-critical embedded power rails.
FAQ
What is the minimum input voltage required for AZ1084CD-2.5TRG1 to maintain regulation at 5A?
The minimum input voltage is calculated as VOUT + VDROP = 2.5V + 1.35V = 3.85V. Per datasheet Section 4, the recommended minimum VIN is 4.0V for guaranteed 2.5V output across temperature and load. Below 4.0V, regulation may degrade or dropout occur under worst-case conditions.
Can AZ1084CD-2.5TRG1 be used with 22µF ceramic output capacitors instead of the 10µF value shown in the typical application diagram?
Yes - the device is stable with ceramic capacitors ≥10µF and ESR <10mΩ. A 22µF X5R 1206 ceramic capacitor improves load-transient response and reduces output voltage deviation during 0–5A steps, as confirmed in Figure 13 of DS36545 Rev. 5-2.
Does AZ1084CD-2.5TRG1 require an external bypass capacitor on the adjust pin?
No - the AZ1084CD-2.5TRG1 is a fixed-output variant with internal resistor divider; pin 3 is GND, not ADJ. Only the adjustable version (AZ1084CD-ADJTRG1) uses an ADJ pin requiring external resistors and optional 10nF bypass.
Is AZ1084CD-2.5TRG1 qualified for automotive applications per AEC-Q100?
No - the datasheet explicitly states that automotive-qualified versions require separate AEC-Q100/101/104/200 qualification and PPAP capability. AZ1084CD-2.5TRG1 is rated for 0°C to +125°C operation but is not AEC-Q100 certified; Diodes recommends contacting their automotive team for qualified alternatives.
AZ1084CD-2.5TRG1 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:
- Active
- 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 @ 4.5A
- 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
AZ1084CD-2.5TRG1 FAQ
1.How can I place an order for AZ1084CD-2.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ1084CD-2.5TRG1 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 AZ1084CD-2.5TRG1 reliable?
The price and inventory of AZ1084CD-2.5TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ1084CD-2.5TRG1 is usually 5 days.
3.What payment methods are accepted for AZ1084CD-2.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ1084CD-2.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ1084CD-2.5TRG1?
AZ1084CD-2.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ1084CD-2.5TRG1 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 AZ1084CD-2.5TRG1?
For technical support, including AZ1084CD-2.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ1084CD-2.5TRG1 requirements.
6.How does Aetrix verify that AZ1084CD-2.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AZ1084CD-2.5TRG1 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 AZ1084CD-2.5TRG1 meets industry standards.
7.What is the process for return or replacement of AZ1084CD-2.5TRG1?
All AZ1084CD-2.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ1084CD-2.5TRG1, 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 AZ1084CD-2.5TRG1 part is unused and in its original packaging.
Return procedure for AZ1084CD-2.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AZ1084CD-2.5TRG1 Tags
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MIC5504-1.8YM5-TR
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MIC5365-3.0YC5-TR
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