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Diodes Incorporated AP1086D25G-13
- Part No.:
- AP1086D25G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AP1086D25G-13.pdf
- Description:
- IC REG LINEAR 2.5V 1.5A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,328
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Product details
Overview
AP1086D25G-13 from Diodes Incorporated is a 1.5A low dropout (LDO) positive fixed-mode voltage regulator delivering a precise 2.5V output with ≤1.4V dropout at full load, ±1% initial tolerance, and 10μF minimum output capacitance requirement. It operates from 4V to 12V input and is designed for stable 2.5V supply in VGA cards, high-speed bus termination, and low-current logic systems.
For engineers reviewing the AP1086D25G-13 datasheet, AP1086D25G-13 pinout, AP1086D25G-13 application, or AP1086D25G-13 equivalent, key selection criteria include dropout voltage under 1.5A load, thermal shutdown behavior, TO252-3L package thermal resistance (θJA = 101°C/W), and fixed-output stability without external resistors.
Technical Context
The AP1086D25G-13 integrates an internal bandgap reference (1.25V), error amplifier, and PNP pass transistor in a fixed-output configuration. Its feedback network is laser-trimmed during manufacturing to deliver nominal 2.5V output with ±1% tolerance across temperature and load.
It employs thermal shutdown triggered at 150°C junction temperature and current limiting set at ≥1.6A. The device requires no external adjustment components and achieves fast transient response via internal compensation optimized for ≥10μF tantalum or aluminum electrolytic output capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±1% (guaranteed over 0–125°C junction temp, 0–1.5A load) |
| Dropout Voltage | 1.4 V max at 1.5A load (enables 2.5V output from as low as 3.9V input) |
| Output Current | 1.5 A continuous (with adequate heatsinking per θJA = 101°C/W) |
| Line Regulation | 0.2% max (ensures <±5mV output shift over full VIN range) |
| Load Regulation | 20–25 mV max (specifies output deviation from 0 to 1.5A load step) |
| Ripple Rejection | 60–70 dB at 120 Hz (suppresses input ripple without additional filtering) |
| Thermal Shutdown | Activates at 150°C TJ (prevents permanent damage during overload or poor heatsinking) |
Pinout & Package
AP1086D25G-13 uses the TO252-3L (DPAK) surface-mount package with exposed thermal pad connected internally to VOUT. Pin 1 is Adj/GND (grounded for fixed mode), Pin 2 is VOUT (output and thermal tab), Pin 3 is VIN (input). The tab must be soldered to a PCB copper pour for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Adj/GND) | Ground reference for fixed-output mode | Internally tied to GND; must be connected to system ground-no external resistor required |
| 2 (VOUT) | Regulated output and thermal connection | Delivers 2.5V; tab is electrically connected to this pin-requires PCB thermal pad for heat dissipation |
| 3 (VIN) | Unregulated input supply | Accepts 4–12V DC; must remain ≥1.4V above VOUT to maintain regulation |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.5V output with laser-trimmed accuracy | Eliminates external resistor network-reduces BOM count and layout area |
| 1.4V max dropout at 1.5A | Enables efficient operation from 3.9V input rails, reducing power loss vs. standard linear regulators |
| Built-in thermal shutdown and current limiting | Provides autonomous fault protection without external circuitry |
| Stable with ≥10μF output capacitor | Supports low-ESR aluminum/tantalum caps-avoids costly ceramic + biasing networks |
| RoHS-compliant "Green" molding compound | Meets EU Directive 2002/95/EC with no Br/Sb-suitable for environmentally regulated designs |
Applications
| VGA Graphics Card Power | PCI Bus Termination |
|---|---|
Use Scenario: Providing clean 2.5V supply to analog front-end and DAC circuitry on discrete VGA cards. IC Role / Device Role / Timing Role: Primary 2.5V LDO regulator delivering stable rail for video signal conditioning and clock buffers. Use Value: Tight ±1% output tolerance and 60–70 dB ripple rejection prevent luminance noise and color distortion in analog RGB output. | Use Scenario: Supplying termination voltage for high-speed PCI-X or AGP 2.5V signaling lines. IC Role / Device Role / Timing Role: Fixed 2.5V source for parallel bus termination resistors, ensuring impedance matching and signal integrity. Use Value: Fast transient response (<100 μs recovery from 0→1.5A step) prevents overshoot/undershoot during burst data transfers. |
| Industrial I/O Module Logic | Embedded FPGA Core Supply |
Use Scenario: Powering 2.5V I/O banks of programmable logic devices in factory automation controllers. IC Role / Device Role / Timing Role: Local point-of-load regulator converting 5V or 12V system rail to 2.5V I/O domain. Use Value: Dropout ≤1.4V allows use with aging or undersized 5V supplies while maintaining regulation under full I/O drive load. | Use Scenario: Delivering 2.5V core voltage to low-power Spartan or Cyclone FPGA families in space-constrained edge nodes. IC Role / Device Role / Timing Role: Compact, thermally robust LDO replacing switching solutions where EMI sensitivity prohibits DC/DC converters. Use Value: TO252-3L package with 101°C/W θJA enables 1.5A delivery without external heatsink in 2-layer PCB layouts. |
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 |
|---|---|---|---|
| AP1117D25G-13 | Lower 800mA output current; 1.3V dropout at 800mA; same TO252-3L package | Suitable only for sub-1A 2.5V loads-insufficient for full VGA card or multi-I/O bank use | Select when thermal budget or cost constraints preclude 1.5A capability |
| TLV1117-25IDCYR | 1A output; 1.2V dropout at 1A; SOT-223 package; higher θJA (120°C/W) | Limited to lower-power applications due to current and thermal limits; smaller footprint but less robust thermal performance | Choose for compact, low-cost consumer designs where 1A suffices and board space is critical |
Compared with AP1117D25G-13 and TLV1117-25IDCYR, the AP1086D25G-13 uniquely supports 1.5A continuous load in TO252-3L with guaranteed 1.4V dropout-making it the only option among the three qualified for full-featured VGA cards and industrial I/O modules requiring sustained 2.5V/1.5A delivery.
Availability
AP1086D25G-13 is available at Aetrix Electronics and suitable for VGA graphics cards, PCI bus termination circuits, and industrial I/O modules requiring stable component supply with full production traceability and long-term lifecycle support.
Supply support for AP1086D25G-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, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP1086 product line delivers high-current, low-dropout fixed and adjustable regulators targeting cost-sensitive, thermally constrained applications such as graphics subsystems and legacy bus interfaces-emphasizing simplicity, stability, and manufacturability.
FAQ
What is the minimum input voltage required for AP1086D25G-13 to regulate at 2.5V?
The AP1086D25G-13 requires a minimum input voltage of 3.9V to maintain regulation at 2.5V output under full 1.5A load, based on its guaranteed 1.4V maximum dropout voltage. At lighter loads, input can be reduced further-e.g., 3.0V is sufficient at 10mA load per datasheet test conditions.
Can AP1086D25G-13 be used in adjustable mode?
No. AP1086D25G-13 is a fixed-output variant with internal resistor divider trimmed to 2.5V. Only the "Adj" suffix versions (e.g., AP1086DXXG-13 with blank VOUT code) support external adjustment via two resistors. This part's Adj pin is internally grounded and must be connected to system GND.
Is a heat sink required for AP1086D25G-13 operating at 1.5A?
A dedicated heat sink is not required if PCB copper area meets Diodes' recommended land pattern (7.2mm × 5.4mm thermal pad) and ambient temperature remains ≤50°C. At 12V input and 2.5V/1.5A output, power dissipation is 14.25W-requiring ≥10cm² of 2oz copper pour or forced airflow to keep junction temperature below 125°C.
What type of output capacitor is recommended for AP1086D25G-13?
Diodes specifies a minimum 10μF aluminum electrolytic or tantalum capacitor with ≤1Ω ESR. Ceramic capacitors alone are not recommended due to insufficient ESR for internal compensation stability. A hybrid approach-e.g., 10μF tantalum in parallel with 100nF ceramic-is acceptable for improved high-frequency transient response while maintaining stability.
AP1086D25G-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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.4V @ 1.5A
- Current - Output:
- 1.5A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 60dB (120Hz)
- 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
AP1086D25G-13 FAQ
1.How can I place an order for AP1086D25G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1086D25G-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 AP1086D25G-13 reliable?
The price and inventory of AP1086D25G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1086D25G-13 is usually 5 days.
3.What payment methods are accepted for AP1086D25G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1086D25G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1086D25G-13?
AP1086D25G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1086D25G-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 AP1086D25G-13?
For technical support, including AP1086D25G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1086D25G-13 requirements.
6.How does Aetrix verify that AP1086D25G-13 is sourced from the original manufacturer or authorized distributors?
All AP1086D25G-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 AP1086D25G-13 meets industry standards.
7.What is the process for return or replacement of AP1086D25G-13?
All AP1086D25G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1086D25G-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 AP1086D25G-13 part is unused and in its original packaging.
Return procedure for AP1086D25G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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