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Diodes Incorporated AP1086D50G-13
- Part No.:
- AP1086D50G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AP1086D50G-13.pdf
- Description:
- IC REG LINEAR 5V 1.5A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:746
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Product details
Overview
AP1086D50G-13 from Diodes Incorporated is a fixed-output 5.0V, 1.5A low dropout linear regulator in TO252-3L package with 1.4V max dropout at full load, ±1% output voltage tolerance, and integrated thermal shutdown. It delivers stable power for 3.3V/5V logic supplies, high-speed bus termination, and VGA card voltage regulation.
For engineers reviewing the AP1086D50G-13 datasheet, AP1086D50G-13 pinout, AP1086D50G-13 application, or AP1086D50G-13 equivalent, key selection criteria include dropout voltage under 1.5A load, output stability with ≥10µF capacitor, thermal resistance (θJA = 101°C/W), and RoHS-compliant green molding compound.
Technical Context
The AP1086D50G-13 uses a PNP pass transistor architecture enabling 1.4V dropout at 1.5A while maintaining tight line regulation (≤0.2%) and load regulation (≤33mV at 3.3V output). Its internal 1.25V reference and feedback network fix output to 5.0V ±1% across 0–125°C junction temperature.
Stability relies on ≥10µF output capacitance; ripple rejection reaches 70dB at 120Hz with 25µF tantalum. Thermal shutdown activates at 150°C, and current limiting holds output at 1.6A minimum during overload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±1% at 10mA, ensuring compatibility with 5V TTL/CMOS logic rails |
| Max Dropout Voltage | 1.4V at 1.5A load, enabling regulation from 6.5V input down to 5V output |
| Output Current | 1.5A continuous, supporting high-current peripherals like VGA DACs and bus terminators |
| Line Regulation | ≤0.2% over VIN = VOUT+1.5V to 12V, minimizing supply-induced output drift |
| Load Regulation | ≤50mV from 0 to 1.5A at 5V output, critical for dynamic load steps in graphics cards |
| Ripple Rejection | 70dB at 120Hz with 25µF tantalum, suppressing switching noise from upstream DC/DC converters |
| Thermal Resistance θJA | 101°C/W (TO252-3L, no heatsink), defining maximum power dissipation before thermal shutdown |
Pinout & Package
AP1086D50G-13 is housed in a surface-mount TO252-3L (DPAK) package with exposed thermal pad connected internally to VOUT. The tab serves as the output terminal and must be soldered to a PCB copper pour for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: Adj (GND) | Ground reference for fixed-mode operation | Internally tied to GND when configured as 5.0V fixed output; not adjustable |
| 2: VOUT | Regulated output terminal | Delivers 5.0V; connects to thermal tab and requires ≥10µF output capacitor to ground for stability |
| 3: VIN | Input supply terminal | Accepts 6.5–12V input; must remain ≥1.4V above VOUT to maintain regulation |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 5.0V output | Eliminates external resistor divider, reducing BOM count and layout sensitivity for standard 5V rail generation |
| 1.4V dropout at 1.5A | Enables efficient conversion from 7–12V intermediate supplies without requiring higher input voltages |
| Integrated thermal shutdown | Protects against sustained overload or inadequate heatsinking by disabling output above 150°C junction temperature |
| Lead-free & RoHS-compliant | Meets EU Directive 2002/95/EC with green molding compound (no Br/Sb), suitable for environmentally regulated production |
| Fast transient response | Stabilizes within microseconds during 0→1.5A load steps, critical for burst-mode logic and GPU power domains |
Applications
| PCI Express Bus Termination | VGA Graphics Card Core Supply |
|---|---|
|
Use Scenario: Providing precise 5V termination voltage for PCIe Gen1/Gen2 reference clocks and data lanes. IC Role / Device Role / Timing Role: Fixed-output LDO delivering clean, low-noise 5V to differential pair termination networks. Use Value: Tight ±1% output tolerance and 70dB ripple rejection prevent timing jitter and signal integrity degradation in high-speed serial links. |
Use Scenario: Powering analog front-end circuitry and DACs on legacy VGA display adapters. IC Role / Device Role / Timing Role: Primary 5V rail generator for video timing controllers and RGB DAC stages. Use Value: 1.5A current capability and fast transient response support dynamic pixel clock loads without output sag or overshoot. |
| Industrial I/O Module Logic Rail | Embedded Controller Auxiliary Supply |
|
Use Scenario: Generating isolated 5V logic supply for digital I/O expansion modules in PLC backplanes. IC Role / Device Role / Timing Role: Local point-of-load regulator converting 12V system bus to 5V microcontroller and level-shifter interface rails. Use Value: 1.4V dropout allows reliable operation even with 12V bus droop to 7.5V, extending system uptime in brownout conditions. |
Use Scenario: Supplying auxiliary 5V power to watchdog timers, RTCs, and PMIC control logic in headless embedded systems. IC Role / Device Role / Timing Role: Always-on LDO providing low-quiescent backup rail independent of main processor power state. Use Value: Minimum load current of 5mA enables stable regulation during deep-sleep modes where system current drops near zero. |
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 |
|---|---|---|---|
| AP1117D50G-13 | Lower 1.0A output current; 1.3V dropout at 1.0A; same TO252-3L package | Suitable only for ≤1.0A 5V loads; insufficient for VGA card peak currents | Select when cost-sensitive designs require lower current and reduced thermal demand |
| TLV1117-50IDCYR | 1.0A output; 1.2V dropout at 1.0A; SOT-223 package; higher θJA (120°C/W) | Limited to low-power applications due to lower current rating and inferior thermal performance | Prefer for space-constrained boards where 1.0A suffices and TO252 footprint is unavailable |
Compared with AP1117D50G-13 and TLV1117-50IDCYR, AP1086D50G-13 uniquely supports 1.5A continuous load in TO252-3L with 1.4V dropout-enabling robust 5V rail generation for graphics and industrial I/O where higher current and thermal margin are mandatory.
Availability
AP1086D50G-13 is available at Aetrix Electronics and suitable for PCI Express bus termination, VGA graphics card core supply, and industrial I/O module logic rails requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for AP1086D50G-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 low-dropout linear regulators optimized for high-current, low-noise applications such as bus termination, graphics subsystems, and logic rail generation where precision, thermal robustness, and compact packaging are essential.
FAQ
What is the minimum input voltage required for AP1086D50G-13 to regulate 5.0V output?
The device requires VIN ≥ VOUT + 1.4V to maintain regulation, so minimum input is 6.4V. At full 1.5A load, 6.5V input is specified in datasheet testing; operation below this risks dropout and output collapse. Input must also stay within absolute max rating of 12V.
Can AP1086D50G-13 be used in adjustable mode?
No. AP1086D50G-13 is factory-configured as a fixed 5.0V output device. The "D50" suffix denotes fixed 5.0V; adjustable versions use "D" alone (e.g., AP1086D-13) and require external resistors on the ADJ pin. Pin 1 (Adj) is internally grounded in this variant.
What output capacitor is required for stability?
A minimum 10µF aluminum electrolytic or tantalum capacitor must be placed between VOUT and GND, located as close as possible to the device. For optimal transient response in VGA or PCIe applications, 100µF is recommended per typical application circuits in the datasheet.
Is thermal derating required for continuous 1.5A operation in TO252-3L?
Yes. With θJA = 101°C/W and max junction temperature of 150°C, continuous 1.5A operation at 5V output (5W dissipation) requires ambient ≤95°C without heatsink. For industrial environments >70°C, PCB copper pour or external heatsink is necessary to avoid thermal shutdown.
AP1086D50G-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):
- 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
AP1086D50G-13 FAQ
1.How can I place an order for AP1086D50G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1086D50G-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 AP1086D50G-13 reliable?
The price and inventory of AP1086D50G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1086D50G-13 is usually 5 days.
3.What payment methods are accepted for AP1086D50G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1086D50G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1086D50G-13?
AP1086D50G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1086D50G-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 AP1086D50G-13?
For technical support, including AP1086D50G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1086D50G-13 requirements.
6.How does Aetrix verify that AP1086D50G-13 is sourced from the original manufacturer or authorized distributors?
All AP1086D50G-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 AP1086D50G-13 meets industry standards.
7.What is the process for return or replacement of AP1086D50G-13?
All AP1086D50G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1086D50G-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 AP1086D50G-13 part is unused and in its original packaging.
Return procedure for AP1086D50G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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