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Diodes Incorporated AP1086D15L-13
- Part No.:
- AP1086D15L-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AP1086D15L-13.pdf
- Description:
- IC REG LDO 1.5V 1.5A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,396
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Product details
Overview
AP1086D15L-13 from Diodes Incorporated is a 1.5A low dropout (LDO) positive fixed-mode voltage regulator delivering a precise 1.5V output with ≤1.4V dropout at full load, 1.47–1.53V output tolerance at 10mA, and 12–15mV load regulation across 0–1.5A. It operates from 3V to 12V input and is optimized for high-speed bus termination and low-current 3.3V logic supply rails in compact PCB layouts.
For engineers reviewing the AP1086D15L-13 datasheet, AP1086D15L-13 pinout, AP1086D15L-13 application, or AP1086D15L-13 equivalent, this device requires attention to thermal resistance (θJA = 101°C/W), minimum 10µF output capacitance, and VIN–VOUT ≥1.4V differential to maintain regulation under transient load conditions.
Technical Context
The AP1086D15L-13 implements a single-stage NPN pass transistor architecture with internal 1.25V reference and error amplifier, enabling fast transient response to 0–1.5A load steps without external compensation. Its fixed 1.5V output is mask-programmed during fabrication-no external resistors required.
Thermal shutdown activates at 150°C junction temperature, and current limiting is set at 1.6A minimum. The device guarantees stable operation with ≥10µF aluminum electrolytic or tantalum output capacitance and requires no input capacitor beyond standard bulk storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.500 V ±2% (1.47–1.53V at 10mA, 25°C); tight tolerance enables direct powering of 1.5V DDR I/O or core logic without post-regulation trimming |
| Dropout Voltage | ≤1.4 V at 1.5A load; allows regulation from 2.9V input, supporting single-cell Li-ion or 3.3V rail-derived supplies |
| Load Regulation | 12–15 mV over 0–1.5A; ensures <±10mV output shift during CPU/GPU burst loads in embedded controllers |
| Ripple Rejection | 60–70 dB at 120Hz; suppresses switching noise from upstream DC/DC converters feeding FPGA or ASIC power domains |
| Thermal Resistance θJA | 101 °C/W (TO252-3L, no heatsink); mandates PCB copper pour ≥4 cm² for continuous 1.5A operation at ambient ≤60°C |
| Quiescent Current | 5–10 mA minimum load requirement; prevents regulation loss during deep-sleep states in battery-powered peripherals |
Pinout & Package
AP1086D15L-13 uses the TO252-3L (DPAK) surface-mount package with exposed thermal pad connected internally to VOUT. The tab is electrically tied to Pin 2 (VOUT), enabling direct thermal coupling to PCB ground plane or dedicated thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Adj/GND) | Reference node / Ground return | Fixed 1.5V mode: internally connected to GND; must be soldered to PCB ground plane for stability and thermal conduction |
| Pin 2 (VOUT) | Regulated output | Primary power output; tab is electrically identical-requires ≥10µF capacitor placed within 5mm of this pin |
| Pin 3 (VIN) | Unregulated input | Accepts 3–12V; must remain ≥1.4V above VOUT at all times-even during 100ns load transients-to avoid dropout |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 1.5V output | Mask-programmed precision eliminates external resistor network, reducing BOM count and layout area by 30% vs adjustable LDOs |
| 1.4V max dropout at 1.5A | Enables efficient 3.3V-to-1.5V conversion in space-constrained VGA cards and PCIe add-in modules |
| Built-in thermal shutdown | Activates at 150°C junction temperature and auto-recovers upon cooling-no external thermal sensor or reset circuit needed |
| Lead-free & RoHS-compliant | Meets EU Directive 2002/95/EC with "Green" molding compound (Br/Sb-free), suitable for consumer and industrial end equipment |
Applications
| DDR Memory I/O Supply | VGA Card Core Power |
|---|---|
Use Scenario: Providing stable 1.5V to DDR2/DDR3 memory chips on motherboard or SoM designs where input rail is 3.3V or higher. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering clean, low-noise 1.5V with fast transient response to meet JEDEC DDR timing margins. Use Value: 12–15mV load regulation and 60–70dB ripple rejection prevent data corruption during simultaneous read/write bursts. | Use Scenario: Powering GPU core logic on legacy PCI Express VGA cards operating from 12V auxiliary or 3.3V main rail. IC Role / Device Role / Timing Role: Fixed-output LDO supplying regulated 1.5V to graphics processor I/O banks during dynamic clock scaling. Use Value: ≤1.4V dropout enables use of unregulated 3.3V rail, eliminating need for intermediate 2.5V stage and reducing component count. |
| Industrial PLC I/O Module | Embedded Controller Logic Rail |
Use Scenario: Generating 1.5V for isolated digital I/O buffers in programmable logic controller backplanes with wide ambient temperature range. IC Role / Device Role / Timing Role: Robust local regulator handling 0–1.5A step loads while maintaining <±1% output accuracy from –40°C to +85°C. Use Value: Thermal shutdown and current limiting protect against short-circuit faults in field-wiring environments without external protection. | Use Scenario: Supplying 1.5V to ARM Cortex-M microcontroller cores or FPGA configuration logic in fanless edge gateways. IC Role / Device Role / Timing Role: Low-noise, thermally stable voltage source ensuring deterministic boot sequence and real-time interrupt latency. Use Value: 0.003% RMS noise and <0.5% temperature stability prevent clock jitter and brownout resets during thermal cycling. |
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 |
|---|---|---|---|
| AP1086K15L-13 | Same electrical specs; TO263-3L package with θJA = 83°C/W and larger thermal pad area | Better thermal performance for 1.5A continuous operation in enclosed enclosures without forced airflow | Select when board space permits larger footprint and thermal management priority exceeds cost sensitivity |
| LD1117S15TR | 1A output, 1.2V dropout typical, TO220/TO252 packages; wider input range (up to 15V) | Limited to 1A load; insufficient for sustained 1.5A VGA or DDR I/O applications | Choose only for lower-current 1.5V rails where thermal margin is ample and cost is critical |
Compared with AP1086K15L-13, the D15L-13 offers lower cost and smaller footprint but requires more aggressive PCB thermal design; versus LD1117S15TR, it delivers 50% higher current capacity and tighter load regulation-critical for memory and graphics subsystems.
Availability
AP1086D15L-13 is available at Aetrix Electronics and suitable for DDR memory I/O supply, VGA card core power, and industrial PLC I/O modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for AP1086D15L-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 series belongs to Diodes' precision LDO regulator product line, engineered specifically for low-voltage, high-current point-of-load applications demanding tight tolerance, fast transient response, and robust thermal protection in space-constrained designs.
FAQ
What is the minimum input voltage required for AP1086D15L-13 to regulate at full 1.5A load?
The device requires VIN ≥ VOUT + 1.4V at full load, so minimum input is 2.9V. Below this, dropout occurs and output voltage drops linearly with input. Operation at 2.9V input is valid only if thermal design sustains junction temperature ≤125°C-verified via θJA = 101°C/W and ambient derating.
Can AP1086D15L-13 be used in adjustable mode?
No. AP1086D15L-13 is factory-masked for fixed 1.5V output. The "D" prefix indicates TO252-3L package and "15" denotes 1.5V; the Adj pin is internally grounded. For adjustable operation, select AP1086D-13 (no voltage suffix) and use external R1/R2 divider per datasheet Figure 2.
Is an input capacitor mandatory for stable operation?
An input capacitor is not required for stability but strongly recommended: a ≥1µF ceramic capacitor near VIN reduces high-frequency noise and prevents input sag during load transients. The regulator's stability depends solely on ≥10µF output capacitance-aluminum electrolytic or tantalum-with ESR between 0.1Ω and 1Ω.
How does thermal shutdown behave during overload conditions?
When junction temperature reaches 150°C, internal thermal shutdown disables the pass transistor, dropping VOUT to near zero. The device remains latched off until junction cools to ~135°C, then automatically resumes regulation. This cycle repeats continuously during sustained overload-no external reset or latch is needed.
AP1086D15L-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- 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):
- -
- 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
AP1086D15L-13 FAQ
1.How can I place an order for AP1086D15L-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1086D15L-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 AP1086D15L-13 reliable?
The price and inventory of AP1086D15L-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1086D15L-13 is usually 5 days.
3.What payment methods are accepted for AP1086D15L-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1086D15L-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1086D15L-13?
AP1086D15L-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1086D15L-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 AP1086D15L-13?
For technical support, including AP1086D15L-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1086D15L-13 requirements.
6.How does Aetrix verify that AP1086D15L-13 is sourced from the original manufacturer or authorized distributors?
All AP1086D15L-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 AP1086D15L-13 meets industry standards.
7.What is the process for return or replacement of AP1086D15L-13?
All AP1086D15L-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1086D15L-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 AP1086D15L-13 part is unused and in its original packaging.
Return procedure for AP1086D15L-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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