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Diodes Incorporated AP1117E15G-13
- Part No.:
- AP1117E15G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP1117E15G-13.pdf
- Description:
- IC REG LINEAR 1.5V 1A SOT223-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,675
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Product details
Overview
AP1117E15G-13 from Diodes Incorporated is a 1.5V fixed-output, 1A low-dropout linear regulator in SOT223 package, designed for stable voltage regulation in space-constrained PCBs. It delivers ≤1.4V dropout at full load, supports 6.4–18V input, and maintains ±1.5% output accuracy over 0°C to +125°C junction temperature - ideal for powering 1.5V logic rails on VGA cards and PC peripherals.
For engineers reviewing the AP1117E15G-13 datasheet, AP1117E15G-13 pinout, AP1117E15G-13 application, or AP1117E15G-13 equivalent, key selection criteria include dropout voltage under 1A load, thermal shutdown behavior, minimum required output capacitance (4.7µF ceramic), SOT223 thermal pad layout, and compatibility with MLCC-based decoupling.
Technical Context
The AP1117E15G-13 integrates a precision 1.25V bandgap reference, current-limiting circuitry, and thermal shutdown protection into a monolithic IC. Its internal pass transistor operates in linear mode with guaranteed dropout ≤1.4V at 1A across the full operating temperature range.
It uses external capacitor-based frequency compensation and is stable with 4.7µF X7R MLCCs (ESR ≤0.5Ω) on both input and output. Ripple rejection reaches 70dB at 180Hz with 25µF tantalum output capacitance, and load regulation is specified at ≤15mV from 0–1A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1.5% (1.47–1.53V) at 10mA, 3V–12V input - ensures compatibility with 1.5V I/O standards. |
| Max Output Current | 1A continuous - sufficient for powering multiple low-power logic ICs or memory interfaces. |
| Dropout Voltage | ≤1.4V at 1A, ΔVOUT = 1% - enables regulation from 2.9V input, critical for battery-backed or multi-rail systems. |
| Input Voltage Range | 6.4V to 18V - supports standard 12V supply rails with margin for ripple and sag. |
| Junction Temp Range | 0°C to +125°C - validated for commercial-grade embedded applications without derating. |
| Thermal Shutdown | Activates at ~150°C junction temperature - protects against sustained overload or poor heatsinking. |
| Output Capacitor ESR | Must be ≤0.5Ω - ensures stability with ceramic or tantalum capacitors; excludes high-ESR aluminum electrolytics unless paralleled. |
Pinout & Package
AP1117E15G-13 is housed in a thermally enhanced SOT223 package with exposed thermal tab connected to VOUT. The tab serves as the primary heat path to the PCB copper pour and must be soldered to ≥5mm × 5mm 2oz copper area for optimal θJA of 107°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Adj/GND) | Ground reference terminal | Internally tied to GND for fixed-output variants; unused but must be connected to ground - not adjustable. |
| 2 (VOUT) | Regulated output node | Delivers 1.5V; also connects to thermal tab - requires low-impedance 4.7µF ceramic capacitor to ground within 10mm trace length. |
| 3 (VIN) | Unregulated input supply | Accepts 6.4–18V; must remain ≥1.3V above VOUT to maintain regulation - requires ≥4.7µF input capacitor with ESR ≤0.5Ω. |
Key Features
| Feature | Design Value |
|---|---|
| Fast transient response | Stabilizes within <20µs after 1A load step - minimizes voltage droop during burst-mode processor activity. |
| Built-in thermal shutdown | Self-resetting protection at ~150°C junction - prevents permanent damage during short-circuit or ambient overheating. |
| MLCC-compatible stability | Validated with 4.7µF X7R ceramic capacitors - eliminates need for bulkier tantalum or electrolytic output caps. |
| Low-noise regulation | 70dB ripple rejection at 180Hz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Lead-free & halogen-free | RoHS-compliant SOT223 with <900ppm Br/Cl and <1000ppm Sb - meets IPC-1752A environmental compliance requirements. |
Applications
| VGA Graphics Card Power | PC Peripheral Interface |
|---|---|
|
Use Scenario: Providing clean 1.5V supply to DDR2/DDR3 memory interface buffers on discrete graphics cards. IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable core voltage to memory termination networks and clock buffer ICs. Use Value: Maintains <±15mV load regulation across 0–1A, preventing timing skew and signal integrity loss in high-speed parallel buses. |
Use Scenario: Regulating 1.5V rail for USB hub controller logic and PHY transceivers in desktop add-in cards. IC Role / Device Role / Timing Role: Primary post-regulator converting 3.3V or 5V system rail to 1.5V I/O domain voltage. Use Value: Dropout ≤1.4V allows operation from partially discharged 3.3V supplies, extending functional uptime during brown-out conditions. |
| Industrial Communication Module | Consumer Set-Top Box SoC Core |
|
Use Scenario: Powering RS-485 transceiver bias circuits and isolated level-shifters in fieldbus gateways. IC Role / Device Role / Timing Role: Low-noise local regulator supplying analog front-end and digital control logic. Use Value: 70dB ripple rejection suppresses conducted noise from switching power supplies, reducing EMI in EMC-sensitive environments. |
Use Scenario: Generating 1.5V core voltage for video decoder ASICs and HDMI transmitter logic in media players. IC Role / Device Role / Timing Role: Secondary LDO downstream of main PMIC, dedicated to noise-sensitive video processing blocks. Use Value: Fast transient response (<20µs) prevents frame drop or color artifacts during rapid video decode workload changes. |
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 rated, 350mV typical dropout at 1.5A, TO-263 package - higher current, lower dropout, larger footprint. | Requires ≥10cm² copper area for thermal management; not suitable for ultra-thin consumer enclosures. | Select when >1A load margin or <0.5V dropout is required; verify PCB thermal relief design for TO-263 mounting. |
| TLV1117-15CDCY | 800mA max, 1.2V dropout at 800mA, SOT-223 - lower current rating, tighter initial accuracy (±1%), TI-qualified automotive grade. | Rated for -40°C to +125°C industrial temp range; qualified per AEC-Q100 Grade 3. | Select for automotive infotainment modules needing extended temperature validation and tighter tolerance - not for 1A continuous loads. |
Compared with MIC29150-1.5WT and TLV1117-15CDCY, AP1117E15G-13 offers balanced 1A capability and SOT223 thermal performance at lower cost, making it optimal for commercial-grade PC peripheral designs where 1.4V dropout and 0–125°C operation are sufficient.
Availability
AP1117E15G-13 is available at Aetrix Electronics and suitable for PC peripheral power delivery, VGA card voltage regulation, and industrial communication module design requiring stable component supply and RoHS-compliant sourcing.
Supply support for AP1117E15G-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 and computing markets.
The AP1117 series belongs to Diodes' precision LDO regulator product line, engineered specifically for cost-sensitive, space-constrained applications requiring stable low-voltage rails with fast transient response and robust thermal protection.
FAQ
Is AP1117E15G-13 pin-compatible with other 1117-family regulators?
Yes - AP1117E15G-13 uses standard SOT223 pinout (VIN–VOUT–GND) and matches industry-standard 1117 footprints. It is electrically and mechanically compatible with LM1117-1.5, MIC1117-1.5, and TLV1117-15, though thermal and transient performance exceeds legacy versions.
What is the minimum output capacitance required for stability?
The datasheet specifies a minimum 4.7µF ceramic (X7R) or solid tantalum capacitor with ESR ≤0.5Ω, placed within 10mm of the device. Aluminum electrolytic capacitors require ≥47µF and must be paralleled with a 1µF MLCC to ensure stability.
Can AP1117E15G-13 operate with a 5V input?
No - the absolute minimum input voltage is 6.4V per datasheet specifications. At 5V input, the device cannot maintain regulation due to its 1.4V dropout requirement, resulting in unregulated or undervoltage output.
Does AP1117E15G-13 support adjustable output configurations?
No - the "E15" suffix denotes fixed 1.5V output. Adjustable versions use "EADJ" (e.g., AP1117EADJG-13) with three-terminal configuration (VIN–VOUT–ADJ); this part ties the ADJ pin internally to GND and is not reconfigurable.
AP1117E15G-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):
- 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:
- SOT-223-3
AP1117E15G-13 FAQ
1.How can I place an order for AP1117E15G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1117E15G-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 AP1117E15G-13 reliable?
The price and inventory of AP1117E15G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1117E15G-13 is usually 5 days.
3.What payment methods are accepted for AP1117E15G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1117E15G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1117E15G-13?
AP1117E15G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1117E15G-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 AP1117E15G-13?
For technical support, including AP1117E15G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1117E15G-13 requirements.
6.How does Aetrix verify that AP1117E15G-13 is sourced from the original manufacturer or authorized distributors?
All AP1117E15G-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 AP1117E15G-13 meets industry standards.
7.What is the process for return or replacement of AP1117E15G-13?
All AP1117E15G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1117E15G-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 AP1117E15G-13 part is unused and in its original packaging.
Return procedure for AP1117E15G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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