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Diodes Incorporated AP1117ID33G-13
- Part No.:
- AP1117ID33G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AP1117ID33G-13.pdf
- Description:
- IC REG LINEAR 3.3V 1A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,003
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Product details
Overview
AP1117ID33G-13 from Diodes Incorporated is a 1A low-dropout linear regulator with fixed 3.3V output, industrial-grade temperature range (−40°C to +125°C), 1.4V max dropout at 1A, and TO252 (DPAK) surface-mount package. It delivers stable 3.3V supply for high-speed bus termination, VGA card power rails, and PC peripheral logic circuits.
For engineers reviewing the AP1117ID33G-13 datasheet, AP1117ID33G-13 pinout, AP1117ID33G-13 application, or AP1117ID33G-13 equivalent, key selection criteria include dropout voltage at full load, thermal resistance (θJA = 73°C/W on 2oz FR-4), output stability with MLCC capacitors, and industrial temperature qualification.
Technical Context
The AP1117ID33G-13 integrates an internal 1.25V reference, error amplifier, current-limit circuitry, and thermal shutdown protection. Its fixed 3.3V output eliminates external feedback resistors, simplifying layout while maintaining ±2% output tolerance over line, load, and temperature.
Designed for low-noise, low-ESR capacitor compatibility, it supports 4.7µF ceramic (X7R) or solid tantalum output capacitors with ESR ≤ 0.5Ω. The TO252 package provides 12°C/W junction-to-case thermal resistance, enabling 1A continuous operation with proper PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±2% (guaranteed across −40°C to +125°C junction temp) |
| Max Output Current | 1A continuous (limited by thermal design; requires ≥73°C/W θJA for full load) |
| Dropout Voltage | 1.4V max at 1A (enables regulation from 4.7V input to deliver stable 3.3V) |
| Input Voltage Range | 4.8V to 12V (minimum VIN = VOUT + 1.3V for regulation) |
| Thermal Shutdown | Activates at ~150°C junction temperature; auto-recovery on cooldown |
| Ripple Rejection | 60–70dB at 180Hz (supports clean supply in noise-sensitive digital logic) |
| Load Regulation | 26–33mV over 0–1A load (critical for consistent 3.3V logic rail under dynamic current) |
Pinout & Package
AP1117ID33G-13 uses the TO252-3 (DPAK) surface-mount package with exposed thermal tab connected to VOUT. The package measures 6.10mm × 6.58mm × 2.29mm and features 2oz copper pad layout per AP02001 for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input supply connection | Must be ≥4.7V; requires ≥4.7µF low-ESR input capacitor placed within 10mm |
| 2 (VOUT) | Regulated 3.3V output | Exposed thermal tab is electrically tied to this pin; connects to ground plane via large copper pour |
| 3 (Adj/GND) | Ground reference | Fixed-mode only: internally connected to GND; no external connection required |
Key Features
| Feature | Design Value |
|---|---|
| Industrial temperature range | −40°C to +125°C operating junction temperature (validated for embedded industrial control) |
| Fast transient response | Stabilizes within microseconds during 100mA–1A load steps (reduces need for bulk capacitance) |
| MLCC-compatible stability | Guaranteed stable with 4.7µF X7R ceramic capacitors (no Y5V dielectric required) |
| Lead-free & halogen-free | RoHS-compliant (EU Directive 2011/65/EU); <900ppm Br/Cl, <1000ppm Sb ("Green" compound) |
| Internal protection | Current limiting + thermal shutdown prevent damage during overload or poor heatsinking |
Applications
| PC Peripheral Power | VGA Card Core Supply |
|---|---|
|
Use Scenario: Providing clean 3.3V rail to USB controller ICs and PCIe endpoint logic on expansion cards. IC Role / Device Role / Timing Role: Fixed-output LDO delivering regulated supply independent of host board voltage variations. Use Value: 1.4V dropout enables use with 5V system rails; 60–70dB ripple rejection suppresses switching noise from upstream DC/DC converters. |
Use Scenario: Powering GPU memory interface and display controller logic in legacy VGA graphics cards. IC Role / Device Role / Timing Role: Low-noise local regulator for timing-critical I/O buffers and pixel clock circuitry. Use Value: Fast transient response maintains voltage within ±33mV during burst memory access; industrial temp rating ensures reliability in enclosed chassis. |
| Industrial Communication Module | Embedded Controller Logic Rail |
|
Use Scenario: Generating 3.3V for RS-485 transceivers and microcontroller peripherals in factory automation gateways. IC Role / Device Role / Timing Role: Primary 3.3V supply for communication PHY layer and MCU I/O domain. Use Value: −40°C to +125°C operation supports deployment in uncontrolled environments; TO252 thermal performance avoids derating in sealed enclosures. |
Use Scenario: Powering ARM Cortex-M series MCUs and associated flash memory in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Stable core voltage source ensuring deterministic reset behavior and ADC accuracy. Use Value: 2% output tolerance and <0.5% thermal drift preserve analog measurement integrity; built-in current limit protects against shorted I/O pins. |
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 |
|---|---|---|---|
| LD1117S33TR | 1A fixed 3.3V LDO; 1.2V dropout typ at 1A; SO-8 package (higher θJA ≈ 150°C/W) | Limited to commercial temp (0°C to +125°C); unsuitable for −40°C ambient deployments | Select when cost sensitivity outweighs industrial temp requirement and board space allows SO-8 footprint |
| TLV1117-33IDCYR | 800mA fixed 3.3V LDO; 1.2V dropout typ at 800mA; SOT-223 package (θJA = 107°C/W) | Lower current rating; requires derating above 600mA in still-air conditions | Choose for lower-power applications where 800mA suffices and SOT-223 thermal profile is acceptable |
Compared with LD1117S33TR and TLV1117-33IDCYR, AP1117ID33G-13 uniquely combines industrial temperature range, 1A capability in TO252, and guaranteed 1.4V dropout-making it the only option qualified for high-current, wide-temperature embedded systems without thermal derating.
Availability
AP1117ID33G-13 is available at Aetrix Electronics and suitable for PC peripheral power, industrial communication modules, and embedded controller logic rails requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP1117ID33G-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 semiconductor company specializing in discrete, analog, and mixed-signal devices for power management, signal integrity, and connectivity applications.
The AP1117 series belongs to Diodes' precision linear regulator product line, engineered specifically for high-reliability industrial and computing applications demanding robust thermal performance and tight output regulation.
FAQ
What is the minimum input voltage required for AP1117ID33G-13 to regulate properly?
The device requires VIN ≥ VOUT + 1.3V to maintain regulation, so minimum input is 4.6V. At 1A load, dropout is up to 1.4V, meaning 4.7V input ensures stable 3.3V output. Below 4.6V, output collapses linearly with input.
Can AP1117ID33G-13 use ceramic capacitors for input and output filtering?
Yes-it is explicitly validated for 4.7µF X7R ceramic capacitors on both input and output, with ESR ≤ 0.5Ω. Y5V dielectrics are prohibited due to capacitance loss at bias and temperature extremes.
How does the TO252 package's thermal performance compare to SOT-223 for this part?
TO252 offers θJA = 73°C/W (on 2oz FR-4), while SOT-223 is 107°C/W. At 1A and 4.7V input, power dissipation is ~1.4W; TO252 limits junction rise to ~102°C, whereas SOT-223 exceeds 125°C-requiring derating or forced air.
Is AP1117ID33G-13 pin-compatible with other 1117-family regulators?
Yes-it shares identical TO252 pinout (VIN-VOUT-GND) with industry-standard 1117 regulators. However, its industrial temperature grade, tighter load regulation (26–33mV), and improved thermal resistance differentiate its performance envelope.
AP1117ID33G-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):
- 3.3V
- 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:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
AP1117ID33G-13 FAQ
1.How can I place an order for AP1117ID33G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1117ID33G-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 AP1117ID33G-13 reliable?
The price and inventory of AP1117ID33G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1117ID33G-13 is usually 5 days.
3.What payment methods are accepted for AP1117ID33G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1117ID33G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1117ID33G-13?
AP1117ID33G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1117ID33G-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 AP1117ID33G-13?
For technical support, including AP1117ID33G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1117ID33G-13 requirements.
6.How does Aetrix verify that AP1117ID33G-13 is sourced from the original manufacturer or authorized distributors?
All AP1117ID33G-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 AP1117ID33G-13 meets industry standards.
7.What is the process for return or replacement of AP1117ID33G-13?
All AP1117ID33G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1117ID33G-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 AP1117ID33G-13 part is unused and in its original packaging.
Return procedure for AP1117ID33G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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