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Diodes Incorporated AZ1084CS-5.0TRE1
- Part No.:
- AZ1084CS-5.0TRE1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Datasheet:
-
AZ1084CS-5.0TRE1.pdf
- Description:
- IC REG LINEAR 5V 5A TO263
- Quantity:
- Payment:
- Shipping:
Inventory:3,841
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Product details
Overview
AZ1084CS-5.0TRE1 from Diodes Incorporated is a fixed-output 5.0V, 5A low-dropout linear regulator in TO252-2 (3) package with 1.35V typical dropout at full load, on-chip thermal limiting, and ±1% output voltage accuracy over 0°C to +125°C junction temperature range. It delivers stable post-regulation for switching supplies and powers microprocessor cores in desktop PCs and embedded systems.
For engineers reviewing the AZ1084CS-5.0TRE1 datasheet, AZ1084CS-5.0TRE1 pinout, AZ1084CS-5.0TRE1 application, or AZ1084CS-5.0TRE1 equivalent, key selection criteria include dropout voltage at 5A, thermal shutdown behavior, compatibility with low-ESR ceramic capacitors, and GND-referenced fixed-output configuration without external resistors.
Technical Context
The AZ1084CS-5.0TRE1 implements a bandgap-referenced error amplifier driving a PNP pass transistor, enabling stable regulation with minimal headroom. Its internal current-limit circuit triggers at 6.5A and integrates thermal foldback to protect against sustained overload or high ambient temperatures.
Designed for fixed-voltage operation, it eliminates external feedback resistors-simplifying layout and improving long-term stability versus adjustable variants. The GND terminal serves as both reference and return path, requiring careful PCB grounding to maintain load regulation within ±10mV across 0–5A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±1% (4.9V to 5.1V), trimmed at production for fixed-load applications without external adjustment. |
| Dropout Voltage | 1.35V typical at 5A load-enables operation from 6.5V input while maintaining regulation under worst-case thermal conditions. |
| Output Current | 5A continuous-supports high-current digital loads such as CPU core rails and FPGA I/O banks. |
| Current Limit | 6.5A minimum-provides robust short-circuit protection without latch-up, allowing safe recovery after fault clearance. |
| Thermal Shutdown | Activates at +150°C junction temperature-prevents permanent damage during sustained overload or poor heatsinking. |
| Line Regulation | ≤10mV over 6.5V–10V input range-ensures stable output despite upstream supply ripple or variation. |
| Load Regulation | ≤35mV from 0A to 5A-maintains tight voltage control across dynamic processor load transients. |
Pinout & Package
Package: TO252-2 (3), surface-mount power package with exposed thermal pad (pin 2 = OUTPUT), optimized for PCB copper area heat dissipation. Thermal resistance θJA = 100°C/W (standard JEDEC 2S2P board), θJC = 7.36°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INPUT | Unregulated input supply connection; requires ≥10µF low-ESR ceramic capacitor placed near pin for stability. |
| 2 | OUTPUT | Regulated 5.0V output; connects directly to load and output capacitor; also serves as thermal conduction path via exposed pad. |
| 3 | GND | Ground reference for internal bandgap and error amplifier; must tie to low-impedance system ground plane to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Low ESR capacitor compatibility | Stable with ≥10µF ceramic output capacitance-reduces board space and cost vs. tantalum alternatives. |
| Thermal limiting with foldback | Reduces output current above +125°C junction temperature-prevents thermal runaway during sustained overload. |
| Trimmed bandgap reference | 1.225V to 1.270V reference voltage-enables ±1% output tolerance without external calibration. |
| Ripple rejection | 72dB at 120Hz-suppresses switching supply ripple before reaching sensitive analog or digital loads. |
| Lead-free & RoHS 3 compliant | No intentionally added lead, <900ppm Br/Cl, <1000ppm Sb-meets global environmental compliance requirements. |
Applications
| Microprocessor Core Supply | Battery Charger Post-Regulator |
|---|---|
|
Use Scenario: Powers 3.3V/5V I/O domains and low-power ARM Cortex-M cores in industrial controllers. IC Role / Device Role / Timing Role: Primary voltage regulator delivering clean, low-noise 5.0V rail with fast transient response to CPU load steps. Use Value: Maintains ≤35mV output deviation during 0–5A load steps-prevents logic errors or brownouts during burst-mode execution. |
Use Scenario: Final-stage regulation after buck converter in Li-ion battery charging circuits for portable medical devices. IC Role / Device Role / Timing Role: Precision post-regulator ensuring constant 5.0V USB-compliant output regardless of charger IC ripple or battery voltage sag. Use Value: 72dB PSRR rejects 120Hz ripple from AC-DC adapter-eliminates need for additional LC filtering stages. |
| Desktop PC Standby Rail | Embedded FPGA I/O Bank Supply |
|
Use Scenario: Generates always-on +5VSB rail in ATX power supplies for USB wake-on-LAN and real-time clock circuits. IC Role / Device Role / Timing Role: Low-quiescent-current (5mA typ) LDO providing regulated standby voltage independent of main 12V/5V rails. Use Value: Operates down to 6.5V input-allows reliable 5V output even during brownout conditions on primary supply. |
Use Scenario: Supplies configurable 5.0V I/O banks in Xilinx Artix-7 FPGAs used in test equipment and data acquisition modules. IC Role / Device Role / Timing Role: High-current, low-noise local regulator decoupling each I/O bank from shared system rails. Use Value: 1.35V dropout enables use of 6.5V intermediate bus-reducing power loss vs. higher-input LDOs. |
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 |
|---|---|---|---|
| APL5305-50BI-TRG1 | 3A rated, 0.6V dropout at 3A, SOT-223 package | Limited to lower current; unsuitable for 5A loads or high-power FPGA banks | Select only when board space constraints prohibit TO252 and load current remains ≤3A. |
| TLV1117-50CDCYR | 800mA rated, 1.2V dropout at 800mA, SOT-223 | Cannot support >1A loads; lacks thermal foldback and current limit | Appropriate only for low-power peripherals-not for microprocessor or battery charger main rails. |
Compared with APL5305-50BI-TRG1 and TLV1117-50CDCYR, the AZ1084CS-5.0TRE1 uniquely supports 5A continuous output with integrated thermal foldback and 1.35V dropout-making it the only viable choice for high-current, thermally constrained applications where reliability under overload is critical.
Availability
AZ1084CS-5.0TRE1 is available at Aetrix Electronics and suitable for microprocessor core supplies, battery charger post-regulation, and embedded FPGA I/O bank powering requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for AZ1084CS-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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal components for power management, signal integrity, and connectivity applications.
The AZ1084C series belongs to Diodes' high-current LDO portfolio, engineered specifically for post-regulation in power-constrained systems where low dropout, thermal robustness, and fixed-output simplicity are mandatory.
FAQ
What is the maximum input voltage for AZ1084CS-5.0TRE1?
The absolute maximum input voltage is 13.2V, but the recommended operating range is 6.5V to 10V. Exceeding 10V increases power dissipation and thermal stress without functional benefit, as the device is optimized for low-dropout operation near its 5.0V output.
Does AZ1084CS-5.0TRE1 require an external capacitor on the GND pin?
No-unlike adjustable LDOs, the AZ1084CS-5.0TRE1 has no ADJ pin and uses an internally trimmed resistor network. Only input (≥10µF ceramic) and output (≥22µF ceramic) capacitors are required for stability and transient response.
Can AZ1084CS-5.0TRE1 be paralleled for higher current?
Not recommended. The device lacks built-in current-sharing features or matching tolerance controls. Parallel operation risks thermal imbalance and premature shutdown due to mismatched dropout voltages and thermal gradients across packages.
Is AZ1084CS-5.0TRE1 qualified for automotive applications?
No-this variant is specified for 0°C to +125°C operation but is not AEC-Q100 qualified. Diodes offers automotive-grade versions (e.g., AZ1084CD-5.0TRG1 with PPAP support), but AZ1084CS-5.0TRE1 is intended for industrial and commercial systems only.
AZ1084CS-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 @ 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-263
AZ1084CS-5.0TRE1 FAQ
1.How can I place an order for AZ1084CS-5.0TRE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ1084CS-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 AZ1084CS-5.0TRE1 reliable?
The price and inventory of AZ1084CS-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 AZ1084CS-5.0TRE1 is usually 5 days.
3.What payment methods are accepted for AZ1084CS-5.0TRE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ1084CS-5.0TRE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ1084CS-5.0TRE1?
AZ1084CS-5.0TRE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ1084CS-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 AZ1084CS-5.0TRE1?
For technical support, including AZ1084CS-5.0TRE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ1084CS-5.0TRE1 requirements.
6.How does Aetrix verify that AZ1084CS-5.0TRE1 is sourced from the original manufacturer or authorized distributors?
All AZ1084CS-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 AZ1084CS-5.0TRE1 meets industry standards.
7.What is the process for return or replacement of AZ1084CS-5.0TRE1?
All AZ1084CS-5.0TRE1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ1084CS-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 AZ1084CS-5.0TRE1 part is unused and in its original packaging.
Return procedure for AZ1084CS-5.0TRE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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