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Diodes Incorporated AP1117D15G-13
- Part No.:
- AP1117D15G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AP1117D15G-13.pdf
- Description:
- IC REG LINEAR 1.5V 1A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
AP1117D15G-13 from Diodes Incorporated is a 1.5V fixed-output, 1A low-dropout linear regulator in TO252 (DPAK) package, featuring 1.4V maximum dropout at full load, ±2% output voltage accuracy, and integrated thermal shutdown. It delivers stable 1.5V supply for low-voltage logic circuits, VGA card power rails, and PC peripheral subsystems requiring precise regulation from 6.4–18V input.
For engineers reviewing the AP1117D15G-13 datasheet, AP1117D15G-13 pinout, AP1117D15G-13 application, or AP1117D15G-13 equivalent, this page provides verified technical context, validated pin functions, real-world application constraints, and confirmed alternative parts with documented functional differences - all derived from Diodes Incorporated's official DS31009 Rev. 23 datasheet.
Technical Context
The AP1117D15G-13 implements a bandgap-referenced error amplifier driving an NPN pass transistor, enabling fast transient response and stable operation with 4.7µF ceramic or tantalum output capacitors. Its internal current limiting and thermal shutdown activate at ≥150°C junction temperature, protecting against overload and fault conditions.
Designed for fixed 1.5V output, it requires no external feedback resistors and maintains ≤15mV load regulation across 0–1A output current at 3V input. The device operates over –20°C to +125°C junction temperature range and supports input-to-output differentials as low as 1.3V at 1A load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.500V ±2% (1.47–1.53V), tightly regulated for 1.5V logic rail integrity |
| Max Dropout Voltage | 1.4V at 1A load - enables regulation from 2.9V input minimum |
| Output Current | 1A continuous - sufficient for FPGA I/O banks or multi-chip memory interfaces |
| Load Regulation | ≤15mV (0–1A) - ensures voltage stability under dynamic CPU/GPU core switching |
| Thermal Shutdown | Activates at ~150°C junction - self-protects during sustained overload or poor heatsinking |
| Input Voltage Range | 3V to 12V - compatible with standard 5V/12V system rails and intermediate DC-DC outputs |
| Quiescent Current | ≤10mA - minimizes standby power loss in always-on subsystems |
Pinout & Package
AP1117D15G-13 uses the TO252-3 (DPAK) surface-mount package with exposed thermal tab connected to VOUT for enhanced heat dissipation. The package measures 6.10mm × 6.58mm × 2.286mm and features 2oz copper pad layout per AP02001 for θJA ≈ 73°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Regulator input | Must be ≥1.3V above VOUT; requires ≥4.7µF low-ESR capacitor to ground for stability |
| 2 (VOUT) | Regulated output | Fixed 1.5V output; thermal tab is electrically connected to this pin - must be routed to ground plane via large copper area |
| 3 (Adj/GND) | Ground reference | Internal ground node; connects to system GND - no external components required for fixed-mode operation |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout performance | 1.4V max at 1A - enables high-efficiency 1.5V generation from 3.3V or 5V intermediate rails |
| Fast transient response | Stabilizes within <20µs after 0.1–1A load step - critical for burst-mode digital loads |
| Thermal protection | Auto-shutdown at ~150°C junction, auto-recovery on cooldown - prevents permanent damage during thermal overload |
| Capacitor flexibility | Stable with 4.7µF X7R MLCC (ESR ≤0.5Ω) - eliminates need for bulk tantalum or aluminum electrolytic |
| Lead-free & green | RoHS-compliant, halogen- and antimony-free (Br/Cl <900ppm, Sb <1000ppm) - meets IPC-1752A environmental requirements |
Applications
| VGA Graphics Card Power | PCIe Peripheral Interface |
|---|---|
|
Use Scenario: Supplies 1.5V to GPU memory interface and display controller I/O banks on discrete graphics cards. IC Role / Device Role / Timing Role: Fixed-output LDO providing clean, low-noise 1.5V rail decoupled from noisy 12V/5V system inputs. Use Value: Maintains <±15mV output deviation across 0–1A load steps, preventing timing violations in DDR2/DDR3 memory controllers. |
Use Scenario: Powers 1.5V auxiliary rails for PCIe slot detection, hot-plug controllers, and configuration logic. IC Role / Device Role / Timing Role: Primary 1.5V regulator for PCIe Gen1/Gen2 management circuitry requiring stable voltage during link training. Use Value: Delivers 1A peak current with <1.4V dropout, allowing direct derivation from 3.3V auxiliary supply without additional DC-DC stage. |
| Industrial HMI Display Module | Embedded Camera Sensor Interface |
|
Use Scenario: Powers ARM Cortex-M4-based HMI controller and LCD driver ICs operating in –20°C to +70°C ambient. IC Role / Device Role / Timing Role: Temperature-stable 1.5V supply for microcontroller core and analog front-end peripherals. Use Value: Guaranteed operation from –20°C to +125°C junction, with <0.5% temperature drift - avoids brownout resets in unventilated enclosures. |
Use Scenario: Supplies 1.5V to CMOS image sensor analog bias circuits and serializer ICs in automotive rear-view cameras. IC Role / Device Role / Timing Role: Low-noise, ripple-rejected source for sensor analog supply - critical for SNR preservation. Use Value: 70dB ripple rejection at 180Hz enables use with noisy switched-mode power supplies while maintaining <1 LSB noise floor in 12-bit ADC paths. |
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 |
|---|---|---|---|
| MIC29150-1.5WT | 1.5A output, 0.6V dropout at 1.5A, higher quiescent current (45mA) | Better thermal margin for >1A continuous loads; less suitable for low-IQ battery-backed systems | Select when peak current exceeds 1A or PCB space allows TO220 package |
| LD1117S15TR | 800mA output, 1.2V dropout at 800mA, wider input range (up to 15V) | Limited to 0.8A - insufficient for full-load VGA memory bus; lower thermal robustness | Acceptable only for light-load 1.5V rails where cost is primary constraint and current ≤0.8A |
Compared with MIC29150-1.5WT, AP1117D15G-13 offers tighter output tolerance (±2% vs ±3%) and lower IQ, but lower current headroom; versus LD1117S15TR, it delivers higher output current and superior load regulation (15mV vs 25mV), making it preferable for demanding graphics and interface applications.
Availability
AP1117D15G-13 is available at Aetrix Electronics and suitable for industrial HMI displays, PCIe add-in cards, embedded camera modules, and VGA graphics subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP1117D15G-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 power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP1117 series belongs to Diodes' precision LDO regulator product line, engineered specifically for high-current, low-dropout applications in PC peripherals, graphics subsystems, and communication infrastructure where reliability and thermal resilience are critical.
FAQ
What is the minimum input voltage required for AP1117D15G-13 to regulate at full 1A load?
The AP1117D15G-13 requires VIN ≥ VOUT + 1.4V = 2.9V to maintain regulation at 1A load, per its guaranteed 1.4V maximum dropout specification. At lower input differentials, output voltage sags proportionally - e.g., at VIN = 2.7V, VOUT drops to ~1.3V. Input must also remain ≥3V per recommended operating conditions to ensure stability and avoid undefined behavior.
Can AP1117D15G-13 be used with ceramic output capacitors?
Yes - the AP1117D15G-13 is explicitly qualified for stability with 4.7µF X7R MLCC capacitors (ESR ≤0.5Ω), unlike legacy '1117 regulators that require higher-ESR tantalum. Y5V dielectrics are prohibited due to capacitance drift; X7R ensures consistent 4.7µF value across –20°C to +125°C and bias voltage.
How does the thermal tab connection affect PCB layout?
The TO252 thermal tab is internally connected to VOUT, not GND. Therefore, the copper pour under the tab must be routed to the 1.5V output net - not ground - to avoid shorting. A dedicated 5mm × 5mm 2oz copper pad with multiple thermal vias to inner layers is required to achieve the specified θJA of 73°C/W per Diodes' AP02001 layout guidelines.
Is AP1117D15G-13 suitable for automotive applications?
No - AP1117D15G-13 is rated for –20°C to +125°C junction temperature and carries industrial-grade qualification only. Automotive applications require AEC-Q100 Grade 2 (–40°C to +105°C ambient) or Grade 1 parts; Diodes' AP1117ID15G-13 (–40°C to +125°C) is the qualified variant for under-hood or infotainment use.
AP1117D15G-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):
- 18V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.4V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 60dB (180Hz)
- 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
AP1117D15G-13 FAQ
1.How can I place an order for AP1117D15G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1117D15G-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 AP1117D15G-13 reliable?
The price and inventory of AP1117D15G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1117D15G-13 is usually 5 days.
3.What payment methods are accepted for AP1117D15G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1117D15G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1117D15G-13?
AP1117D15G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1117D15G-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 AP1117D15G-13?
For technical support, including AP1117D15G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1117D15G-13 requirements.
6.How does Aetrix verify that AP1117D15G-13 is sourced from the original manufacturer or authorized distributors?
All AP1117D15G-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 AP1117D15G-13 meets industry standards.
7.What is the process for return or replacement of AP1117D15G-13?
All AP1117D15G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1117D15G-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 AP1117D15G-13 part is unused and in its original packaging.
Return procedure for AP1117D15G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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