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Diodes Incorporated AP1084D15G-13
- Part No.:
- AP1084D15G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AP1084D15G-13.pdf
- Description:
- IC REG LINEAR 1.5V 5A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,928
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Product details
Overview
AP1084D15G-13 from Diodes Incorporated is a 5A low-dropout positive fixed-mode voltage regulator with 1.5V output, TO252-3L package, 1.4V max dropout at full load, built-in thermal shutdown and current limiting. It delivers stable 1.5V supply for high-speed bus termination and low-current logic rails in VGA cards and embedded power subsystems.
For engineers reviewing the AP1084D15G-13 datasheet, AP1084D15G-13 pinout, AP1084D15G-13 application, or AP1084D15G-13 equivalent, key selection criteria include dropout voltage under 5A load, thermal resistance (θJA = 73°C/W), output stability with ≥10µF capacitor, and fixed-output accuracy (±2% over temperature and load).
Technical Context
The AP1084D15G-13 implements a three-terminal LDO architecture with internal 1.25V reference and precision error amplifier. Its dropout behavior is characterized at 1.3–1.4V across 0–5A load, enabling regulation from 2.9V input to deliver 1.5V output.
It integrates current-limit protection (5.1A typical) and thermal shutdown at 150°C, with guaranteed operation from 0°C to +125°C junction temperature. Output voltage is factory-trimmed to 1.500V ±3% at 10mA, with load regulation of ±15mV over 0–5A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.500V ±3% at 10mA, 25°C; maintains regulation down to 1.4V VIN–VOUT margin |
| Max Output Current | 5.0A continuous; limited to 5.1A by internal current foldback |
| Dropout Voltage | 1.4V maximum at 5A load; enables use with 2.9V minimum input for 1.5V output |
| Thermal Shutdown | Activates at 150°C junction temperature; self-recovery after cooldown |
| Output Capacitor Requirement | ≥10µF aluminum electrolytic (ESR 0.15–20Ω); ensures stability and transient response |
| Line Regulation | 0.2% over VIN range (VOUT+1.5V to 12V); critical for input ripple rejection |
| Load Regulation | ±15mV (1.5V output) from 0–5A; defines worst-case output deviation under dynamic load |
Pinout & Package
AP1084D15G-13 uses the TO252-3L (DPAK) surface-mount package with exposed thermal tab connected to VOUT. The tab serves as both mechanical anchor and primary heat path; PCB copper area must be maximized beneath it per Diodes AP02001 layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Adj/GND) | Adjust/Ground terminal | Internally tied to ground for fixed-mode operation; no external connection required |
| 2 (VOUT) | Regulated output | Primary power output node; also connected to thermal tab; requires ≥10µF bulk capacitance |
| 3 (VIN) | Input supply | Accepts 2.9V–12V DC; must remain ≥1.4V above VOUT to sustain regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout at full load | 1.4V max dropout enables 1.5V output from 2.9V input - supports legacy 3.3V rail derating |
| Integrated protection | Thermal shutdown + current limiting prevent damage during overload or poor heatsinking |
| Fast transient response | Stable under 0→5A load steps without external compensation; reduces need for large output caps |
| RoHS-compliant & green compound | Lead-free finish and bromine/antimony-free molding compound meet EU Directive 2002/95/EC |
| High noise rejection | Good line regulation (0.2%) and inherent feedback loop design suppress input ripple on output |
Applications
| VGA Graphics Card Power | PCI Express Bus Termination |
|---|---|
|
Use Scenario: Supplies 1.5V termination voltage for high-speed differential signaling on discrete GPU PCBs. IC Role / Device Role / Timing Role: Fixed-output LDO providing clean, low-noise bias for TMDS or PCIe receiver termination networks. Use Value: 1.4V dropout allows direct derivation from 3.3V rail; thermal shutdown prevents overheating during GPU thermal throttling events. |
Use Scenario: Powers 1.5V reference and termination circuits on PCIe x16 add-in cards. IC Role / Device Role / Timing Role: Primary 1.5V regulator for PCIe slot-side termination resistors and receiver biasing. Use Value: 5A rating supports multi-lane termination loads; fast transient response maintains signal integrity during link training. |
| Industrial FPGA I/O Bank Supply | Embedded Display Interface Power |
|
Use Scenario: Delivers regulated 1.5V to FPGA I/O banks driving LVDS or RSDS display interfaces. IC Role / Device Role / Timing Role: Dedicated low-noise supply for programmable I/O voltage domains requiring tight tolerance. Use Value: ±3% output accuracy and <±15mV load regulation ensure setup/hold timing margins are preserved across temperature and load. |
Use Scenario: Powers 1.5V logic in portable display modules (e.g., eDP source drivers, timing controllers). IC Role / Device Role / Timing Role: Fixed-output LDO supplying core logic voltage for display interface ICs with strict EMI limits. Use Value: TO252-3L package enables compact layout; green compound satisfies environmental compliance for consumer displays. |
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 |
|---|---|---|---|
| AP1084D15L-13 | Same electrical specs; lead-free but non-green (Br/Sb present) molding compound | Acceptable where RoHS compliance is required but halogen-free is not mandated | Select when cost sensitivity outweighs green material requirements |
| TLV1117-15CDCYR | Lower 800mA output, 1.2V dropout, SOT-223 package; no thermal pad | Suitable only for light-load 1.5V rails (<500mA); lacks thermal robustness for sustained 5A operation | Choose only for space-constrained, low-power designs where 5A capability is unnecessary |
Compared with AP1084D15G-13, AP1084D15L-13 offers identical performance with relaxed environmental compliance, while TLV1117-15CDCYR trades output current and thermal capability for footprint reduction - making the AP1084D15G-13 uniquely suited for high-current, thermally demanding 1.5V applications.
Availability
AP1084D15G-13 is available at Aetrix Electronics and suitable for VGA graphics card power, PCIe bus termination, and industrial FPGA I/O bank supply requiring stable component supply, long-term lifecycle support, and RoHS/green compliance.
Supply support for AP1084D15G-13 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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The AP1084 product line targets high-current, low-dropout power regulation for computing and graphics infrastructure, emphasizing thermal resilience, fast transient response, and compatibility with legacy 3.3V/5V intermediate rails.
FAQ
What is the minimum input voltage required for AP1084D15G-13 to regulate 1.5V output?
The device requires VIN ≥ VOUT + 1.4V to maintain regulation, so minimum input is 2.9V. At lower VIN, output drops linearly with input; operation below 2.9V results in unregulated dropout mode. Input must also stay within absolute maximum rating of 12V.
Can AP1084D15G-13 be used without an output capacitor?
No. A minimum 10µF aluminum electrolytic capacitor (ESR 0.15–20Ω) is mandatory between VOUT and GND for loop stability and transient response. Omitting it causes oscillation, overshoot, or thermal runaway under load changes.
Is the thermal tab electrically isolated in the TO252-3L package?
No. The thermal tab is internally connected to the VOUT pin. PCB copper pour under the tab must be routed to the 1.5V output net - not ground - to avoid short circuits and ensure proper heat dissipation.
How does load regulation performance change at elevated temperature?
Load regulation degrades slightly with temperature: at 125°C junction, deviation increases to ±20mV (vs. ±15mV at 25°C) over 0–5A. This is specified in the "Load Regulation vs Temperature" graph on page 7 of the datasheet.
AP1084D15G-13 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):
- 1.4V @ 5A
- Current - Output:
- 5A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- 0°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
AP1084D15G-13 FAQ
1.How can I place an order for AP1084D15G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1084D15G-13 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 AP1084D15G-13 reliable?
The price and inventory of AP1084D15G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1084D15G-13 is usually 5 days.
3.What payment methods are accepted for AP1084D15G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1084D15G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1084D15G-13?
AP1084D15G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1084D15G-13 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 AP1084D15G-13?
For technical support, including AP1084D15G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1084D15G-13 requirements.
6.How does Aetrix verify that AP1084D15G-13 is sourced from the original manufacturer or authorized distributors?
All AP1084D15G-13 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 AP1084D15G-13 meets industry standards.
7.What is the process for return or replacement of AP1084D15G-13?
All AP1084D15G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1084D15G-13, 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 AP1084D15G-13 part is unused and in its original packaging.
Return procedure for AP1084D15G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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