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Diodes Incorporated AP1117E50L-13
- Part No.:
- AP1117E50L-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP1117E50L-13.pdf
- Description:
- IC REG LINEAR 5V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:3,346
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Product details
Overview
AP1117E50L-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 voltage regulation with ≤1.4V dropout at full load, supports 6.4V–18V input range, and operates across 0°C to +125°C junction temperature. It is designed for high-speed bus termination, 3.3V/5.0V logic supplies, and VGA card power rails.
For engineers reviewing the AP1117E50L-13 datasheet, AP1117E50L-13 pinout, AP1117E50L-13 application, or AP1117E50L-13 equivalent, key selection criteria include dropout voltage at 1A load, thermal shutdown behavior, output stability with MLCC capacitors, minimum load current requirement (5–10mA), and SOT223 thermal resistance (θJA = 107°C/W on standard FR-4).
Technical Context
The AP1117E50L-13 integrates a precision 1.25V bandgap reference, error amplifier, current-limit protection, and thermal shutdown circuitry in a monolithic IC. Its fixed 5.0V output eliminates external feedback resistors, simplifying layout while maintaining ±1% initial accuracy and <1% load regulation over 0–1A output current.
It employs internal compensation optimized for ceramic output capacitors ≥4.7µF (X7R dielectric), enabling fast transient response (<10µs recovery) and 60–70dB ripple rejection at 180Hz. The SOT223 thermal tab (connected to VOUT) provides a low-impedance path for heat dissipation, with θJC = 15°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.00V ±1% at 10mA, stable under 0–1A load and 6.5–12V input. |
| Dropout Voltage | Max 1.4V at 1A load and ΔVOUT = 1% - enables regulation from 6.4V input down to 5.0V output. |
| Load Regulation | ≤33mV (0–1A, VIN = 5V) - ensures minimal output shift during dynamic current draw in logic supplies. |
| Line Regulation | ≤0.2% over VIN = VOUT+1.5V to 12V - maintains tight output despite input rail variation. |
| Thermal Shutdown | Activates at ~150°C junction temperature, auto-recovers as die cools - prevents permanent damage during overload. |
| Output Capacitor Support | Stable with ≥4.7µF X7R MLCC (ESR ≤0.5Ω); no Y5V dielectrics permitted - reduces board area vs. electrolytic solutions. |
| Junction Temp Range | 0°C to +125°C - qualified for commercial-grade embedded systems including PC peripherals and communication modules. |
Pinout & Package
AP1117E50L-13 uses the SOT223 surface-mount package (6.5mm × 3.5mm × 1.6mm), with the exposed thermal tab electrically connected to VOUT for enhanced heat transfer. Pin 1 (Adj/GND) is internally tied to ground for fixed-output variants; Pin 2 (VOUT) delivers regulated 5.0V; Pin 3 (VIN) accepts 6.4–18V input.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Adj/GND) | Ground reference terminal | Internally connected to GND in fixed-mode variants - no external resistor network required; must be shorted to PCB ground plane. |
| 2 (VOUT) | Regulated output node | Delivers 5.0V ±1%; also serves as thermal tab connection point - requires direct copper pour for thermal management. |
| 3 (VIN) | Unregulated input supply | Accepts 6.4–18V DC; must exceed VOUT by ≥1.3V to maintain regulation; requires ≥4.7µF low-ESR input capacitor within 10mm trace length. |
Key Features
| Feature | Design Value |
|---|---|
| Lead-free & Halogen-free | SOT223 package fully RoHS-compliant (2011/65/EU) and "Green" certified (<900ppm Br, <900ppm Cl, <1000ppm Sb). |
| Fast transient response | Sub-10µs recovery from 100mA ↔ 1A load steps - critical for powering burst-mode logic circuits without brownout. |
| MLCC-compatible stability | Guaranteed stable with 4.7µF X7R ceramic output caps - eliminates need for bulky tantalum or aluminum electrolytics. |
| Integrated protection | Current limiting (≥1.1A) + thermal shutdown (≈150°C) - enables robust operation without external fault-handling circuitry. |
| Low quiescent current | Typical 5–10mA minimum load requirement - compatible with low-power standby states in peripheral controllers. |
Applications
| PC Peripheral Power | VGA Card Core Supply |
|---|---|
|
Use Scenario: Providing clean 5.0V rail to USB hubs, SATA controllers, and PCIe add-in cards in desktop motherboards. IC Role / Device Role / Timing Role: Primary LDO for post-regulation of switched-mode converter outputs, ensuring noise-sensitive logic meets VIL/VIH margins. Use Value: 70dB ripple rejection suppresses switching noise from upstream DC/DC converters, preventing data corruption in high-speed interfaces. |
Use Scenario: Delivering stable 5.0V to GPU memory buffers and display interface circuitry in discrete graphics cards. IC Role / Device Role / Timing Role: Local point-of-load regulator decoupling high-current digital logic from shared motherboard rails. Use Value: Fast transient response maintains voltage within ±3% during GPU shader core bursts, avoiding timing violations in DDR memory controllers. |
| Communication Module Bias | Consumer Equipment Logic Rail |
|
Use Scenario: Powering Ethernet PHYs, UART transceivers, and Wi-Fi baseband ICs in industrial gateways and routers. IC Role / Device Role / Timing Role: Fixed-output LDO supplying I/O and core logic domains where adjustable topology adds unnecessary complexity. Use Value: Dropout ≤1.4V allows direct use of 7–12V system rails without intermediate buck conversion, reducing BOM count and footprint. |
Use Scenario: Regulating 5.0V for microcontroller peripherals, touch controllers, and audio codecs in smart TVs and set-top boxes. IC Role / Device Role / Timing Role: Low-noise local supply for mixed-signal SoCs requiring clean analog reference and digital I/O domains. Use Value: Thermal shutdown and current limit enable safe operation during firmware update-induced current surges, improving field reliability. |
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 |
|---|---|---|---|
| AMS1117-5.0 | Higher dropout (1.2V typ @ 1A), wider output tolerance (±2%), no guaranteed MLCC stability. | Limited to less demanding consumer applications; not recommended for high-transient logic loads. | Lower cost but requires larger output capacitance (≥10µF tantalum) and sacrifices regulation accuracy. |
| LD1117S50TR | Same 1A rating, but higher thermal resistance (θJA = 125°C/W), narrower input range (up to 15V), and no Green certification. | Suitable only for non-halogen-restricted designs operating below 85°C ambient. | Acceptable for legacy industrial designs where RoHS/halogen compliance is not mandated. |
Compared with AMS1117-5.0 and LD1117S50TR, AP1117E50L-13 offers superior transient performance, tighter output accuracy, guaranteed ceramic capacitor compatibility, and full halogen-free compliance - making it preferable for new designs targeting compact, thermally constrained, or environmentally regulated applications.
Availability
AP1117E50L-13 is available at Aetrix Electronics and suitable for PC peripheral power, VGA card core supply, and communication module bias requiring stable component supply, consistent lead-free compliance, and long-term industrial availability.
Supply support for AP1117E50L-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.
The AP1117 series targets cost-sensitive, space-constrained applications needing robust fixed-output LDOs with enhanced thermal and transient performance versus legacy 1117 derivatives.
FAQ
Is AP1117E50L-13 pin-compatible with other 1117-family regulators?
Yes - it uses the standard SOT223 pinout (VIN, VOUT, GND) and matches mechanical and electrical footprints of industry-standard 1117 regulators. However, its improved transient response and MLCC compatibility may require revalidation of output capacitor selection in legacy designs.
What is the minimum input voltage required for regulation at 5.0V output?
The minimum input voltage is 6.3V - derived from the maximum dropout voltage (1.3V) plus nominal output (5.0V). At full 1A load and elevated temperature, VIN must remain ≥6.4V to guarantee regulation per datasheet specifications.
Can AP1117E50L-13 operate without an output capacitor?
No - a minimum 4.7µF ceramic (X7R) or solid tantalum capacitor with ESR ≤0.5Ω is mandatory for stability. Omitting it causes oscillation and potential device failure; aluminum electrolytic requires ≥47µF and is not recommended alone.
Does AP1117E50L-13 support reverse-voltage protection?
No - it lacks integrated reverse-battery or reverse-polarity protection. Applying reverse voltage to VIN or VOUT can damage the IC. External protection diodes or MOSFET-based circuits must be added if system-level reverse polarity is possible.
AP1117E50L-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
AP1117E50L-13 FAQ
1.How can I place an order for AP1117E50L-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1117E50L-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 AP1117E50L-13 reliable?
The price and inventory of AP1117E50L-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1117E50L-13 is usually 5 days.
3.What payment methods are accepted for AP1117E50L-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1117E50L-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1117E50L-13?
AP1117E50L-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1117E50L-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 AP1117E50L-13?
For technical support, including AP1117E50L-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1117E50L-13 requirements.
6.How does Aetrix verify that AP1117E50L-13 is sourced from the original manufacturer or authorized distributors?
All AP1117E50L-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 AP1117E50L-13 meets industry standards.
7.What is the process for return or replacement of AP1117E50L-13?
All AP1117E50L-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1117E50L-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 AP1117E50L-13 part is unused and in its original packaging.
Return procedure for AP1117E50L-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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