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Diodes Incorporated AP1117E50G-13
- Part No.:
- AP1117E50G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP1117E50G-13.pdf
- Description:
- IC REG LINEAR 5V 1A SOT223-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,797
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Product details
Overview
AP1117E50G-13 from Diodes Incorporated is a 1A low-dropout linear regulator in fixed 5.0V output mode, housed in a SOT223 package. It delivers stable 5.0V supply with ≤1.4V dropout at full load, supports input voltages from 6.5V to 12V, and features built-in thermal shutdown and current limiting - commonly used for 5V logic rails in PC peripherals and communication modules.
For engineers reviewing the AP1117E50G-13 datasheet, AP1117E50G-13 pinout, AP1117E50G-13 application, or AP1117E50G-13 equivalent, key selection criteria include dropout voltage at 1A load, thermal resistance (θJA = 107°C/W), output stability with 4.7µF MLCC, and industrial-grade junction temperature range (–40°C to +125°C).
Technical Context
The AP1117E50G-13 implements a bandgap-referenced error amplifier driving a PNP pass transistor, enabling precise 5.0V regulation across line and load variations. Its internal current limit and thermal shutdown circuits operate independently of external components, ensuring robust fault protection without auxiliary circuitry.
Designed for surface-mount use on FR-4 PCBs with 2oz copper, it relies on thermal conduction through the exposed tab (VOUT-connected) for heat dissipation. Stability is guaranteed with output capacitors ≥4.7µF ceramic (X7R, ESR ≤0.5Ω), eliminating need for tantalum or aluminum electrolytic in most designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.000 V ±2% (measured at 10mA, 6.5V–12V input, +25°C) |
| Dropout Voltage | 1.4 V max at 1A load (ensures regulation down to VIN = 6.4V for 5V output) |
| Output Current | 1 A continuous (internally limited; derates above TJ = +125°C) |
| Junction Temp Range | –40°C to +125°C (industrial grade; validated per AP1117I spec) |
| Thermal Resistance θJA | 107°C/W (tested on 2oz FR-4, 5mm × 5mm pad, no airflow) |
| Line Regulation | 0.2% max (for VIN change within VOUT+1.5V to 12V) |
| Load Regulation | 40–50 mV max (0–1A load step at VIN = 8V, +25°C) |
Pinout & Package
SOT223 package with exposed thermal tab electrically connected to VOUT pin; requires soldering to copper pour for thermal performance. Pin 1 (Adj/GND) is ground in fixed-output variants; Pin 2 (VOUT) supplies regulated 5.0V; Pin 3 (VIN) accepts 6.5–12V input.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Adj/GND) | Ground reference | Internally tied to GND for fixed 5.0V operation; not adjustable |
| 2 (VOUT) | Regulated output | Delivers 5.0V; tab is electrically connected to this pin for thermal conduction |
| 3 (VIN) | Input supply | Accepts 6.5–12V DC; must exceed VOUT by ≥1.3V to maintain regulation |
Key Features
| Feature | Design Value |
|---|---|
| Fast transient response | Sub-20µs recovery from 100mA–1A load steps (with 10µF output cap) |
| Stable with MLCC | Guaranteed stability using ≥4.7µF X7R ceramic (ESR ≤0.5Ω); avoids Y5V dielectrics |
| Integrated protection | Current limiting (≥1.1A) and thermal shutdown (trip at ~150°C) require no external components |
| Low-noise regulation | 70 dB ripple rejection at 180Hz (with 25µF tantalum output cap) |
| Green packaging | SOT223 package is halogen-free (<900ppm Br/Cl), antimony-free (<1000ppm), RoHS-compliant |
Applications
| PC Peripheral Power | Communication Module Supply |
|---|---|
|
Use Scenario: Providing clean 5V rail to USB hub controllers and PCIe endpoint logic on add-in cards. IC Role / Device Role / Timing Role: Primary 5V LDO supplying I/O buffers and interface PHYs requiring tight voltage tolerance and low noise. Use Value: Maintains <±2% output accuracy across 0–1A load and 0–70°C ambient, preventing USB enumeration failures or signal integrity loss. |
Use Scenario: Powering Ethernet PHYs and UART transceivers in industrial gateways operating at –25°C to +70°C. IC Role / Device Role / Timing Role: Fixed 5V local regulator decoupled from noisy 12V system bus, minimizing conducted EMI into data lines. Use Value: Delivers 70dB AC ripple rejection and <50mV load regulation drift, preserving signal eye margin in 100BASE-TX links. |
| VGA Card Logic Supply | Consumer Equipment AV Core |
|
Use Scenario: Generating 5V for VGA DACs, timing controllers, and EDID EEPROMs on legacy graphics cards. IC Role / Device Role / Timing Role: Low-noise, thermally robust LDO replacing older 7805 designs with higher dropout and poorer thermal performance. Use Value: Enables compact layout via SOT223 footprint and eliminates need for heatsinks - critical in space-constrained PCBs. |
Use Scenario: Supplying 5V to audio codec ICs and HDMI CEC controllers in set-top boxes with ambient temperatures up to +60°C. IC Role / Device Role / Timing Role: Stable local regulator supporting burst-mode audio processing loads while maintaining low quiescent current (<10mA min load). Use Value: Thermal shutdown activation at ~150°C prevents catastrophic failure during sustained high-load conditions in sealed enclosures. |
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 |
|---|---|---|---|
| AP1117E50G-13 vs. MIC29302-5.0WT | Higher dropout (1.5V @1A) and lower PSRR (55dB @120Hz); TO263 package with θJA = 40°C/W | Better thermal performance in high-power-density layouts but larger footprint and higher cost | Select MIC29302-5.0WT only when board-level thermal resistance exceeds 50°C/W and SOT223 cannot meet TJ < +125°C |
| AP1117E50G-13 vs. TLV1117-50CDCYR | Narrower input range (4.75–15V), lower dropout (1.2V @1A), but only commercial temp (0°C to +125°C) | Lacks industrial temperature rating; unsuitable for outdoor or automotive-adjacent deployments | Choose TLV1117-50CDCYR only for cost-sensitive consumer products with controlled ambient environments |
Compared with MIC29302-5.0WT and TLV1117-50CDCYR, AP1117E50G-13 offers the best balance of industrial temperature support, SOT223 compactness, and proven stability with low-ESR MLCCs - making it optimal for space-constrained industrial peripherals where reliability across –40°C startup is mandatory.
Availability
AP1117E50G-13 is available at Aetrix Electronics and suitable for PC peripheral power, communication module supply, and VGA card logic requiring stable component supply with industrial temperature qualification and RoHS/Green compliance.
Supply support for AP1117E50G-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 communications markets.
The AP1117 series targets cost-effective, thermally robust linear regulation in space-constrained applications - designed specifically to replace legacy 78xx regulators while supporting modern MLCC-based decoupling and extended temperature operation.
FAQ
Is AP1117E50G-13 pin-compatible with standard LM1117-5.0 variants?
Yes - AP1117E50G-13 uses identical SOT223 pinout (VIN-VOUT-GND) and matches LM1117-5.0's electrical behavior, including 5.0V output tolerance, dropout, and thermal shutdown thresholds. However, its improved MLCC stability and tighter load regulation make it a functional upgrade without layout changes.
What minimum output capacitance is required for stable operation?
A minimum 4.7µF X7R ceramic capacitor (ESR ≤0.5Ω) is required on the VOUT pin, placed within 10mm of the device. Aluminum electrolytic capacitors are acceptable only if ≥47µF and paired with a 1µF MLCC; Y5V dielectrics must be avoided due to capacitance drift.
Can AP1117E50G-13 operate with a 5.5V input supply?
No - the absolute minimum input voltage is 6.5V for guaranteed 5.0V regulation at full 1A load, due to its 1.4V maximum dropout. At 5.5V input, output collapses below 4.1V under load; design margin requires VIN ≥6.5V to ensure regulation across temperature and tolerance.
Does the thermal tab require electrical isolation from PCB ground?
No - the exposed thermal tab is internally connected to the VOUT pin. It must be soldered directly to a copper pour tied to the 5V output net to enable effective heat transfer; isolating it degrades θJA by >30°C/W and risks thermal shutdown under 0.7A load.
AP1117E50G-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- 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):
- 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:
- SOT-223-3
AP1117E50G-13 FAQ
1.How can I place an order for AP1117E50G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1117E50G-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 AP1117E50G-13 reliable?
The price and inventory of AP1117E50G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1117E50G-13 is usually 5 days.
3.What payment methods are accepted for AP1117E50G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1117E50G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1117E50G-13?
AP1117E50G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1117E50G-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 AP1117E50G-13?
For technical support, including AP1117E50G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1117E50G-13 requirements.
6.How does Aetrix verify that AP1117E50G-13 is sourced from the original manufacturer or authorized distributors?
All AP1117E50G-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 AP1117E50G-13 meets industry standards.
7.What is the process for return or replacement of AP1117E50G-13?
All AP1117E50G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1117E50G-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 AP1117E50G-13 part is unused and in its original packaging.
Return procedure for AP1117E50G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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