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Diodes Incorporated AP7363-18D-13
- Part No.:
- AP7363-18D-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AP7363-18D-13.pdf
- Description:
- IC REG LINEAR 1.8V 1.5A TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,384
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Product details
Overview
AP7363-18D-13 from Diodes Incorporated is a fixed-output 1.8V, 1.5A ultra-low dropout linear regulator in TO252-3L package, featuring 190mV dropout at full load, 0.5mA quiescent current, and built-in thermal shutdown and current limit protection. It delivers stable power to FPGA I/O rails, ASIC cores in routers and STBs, and post-regulation stages following 3.3V/5V SMPS outputs.
For engineers reviewing the AP7363-18D-13 datasheet, AP7363-18D-13 pinout, AP7363-18D-13 application, or AP7363-18D-13 equivalent, key selection criteria include dropout voltage at 1.5A, thermal resistance (θJA = 87.8°C/W), shutdown mode current (25nA), stability with 10µF ceramic output capacitors, and compatibility with -40°C to +85°C ambient operation.
Technical Context
The AP7363-18D-13 integrates a PMOS pass element with internal 0.605V reference and error amplifier for precise 1.8V regulation. Its compensation architecture eliminates ESR dependency, enabling stable operation with any capacitor type-including low-ESR ceramics-without external components.
Thermal shutdown triggers at ~170°C junction temperature with 10°C hysteresis, while current limiting clamps output at ~3.7A. The device operates across 2.2V–5.5V input range and maintains <0.05%/V line regulation and <0.33%/A load regulation over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% tolerance ensures reliable core/I/O rail compliance for FPGA and ASIC logic. |
| Max Output Current | 1.5A continuous delivery supports high-current digital loads without external current boosting. |
| Dropout Voltage | 190mV at 1.5A enables operation from 2.0V input-critical for battery-powered or low-voltage intermediate rails. |
| Quiescent Current | 0.5mA typical (25nA in shutdown) minimizes standby power loss in always-on embedded systems. |
| Input Voltage Range | 2.2V to 5.5V accommodates direct connection to 3.3V or 5V system rails without pre-regulation. |
| Thermal Shutdown | 170°C trip threshold with 10°C hysteresis provides robust fault recovery during sustained overload or poor heatsinking. |
| PSRR @ 1kHz | 61dB suppresses switching noise from upstream DC/DC converters, preserving signal integrity in sensitive analog/digital domains. |
Pinout & Package
AP7363-18D-13 uses the TO252-3L (DPAK) thermally enhanced surface-mount package with exposed tab electrically connected to GND. The tab must be soldered to ≥1 cm² copper pour for effective heat dissipation; θJA = 87.8°C/W on 2"×2" FR-4 board with 2oz copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference and thermal pad connection | Primary return path for load current and thermal conduction; must be externally tied to system ground plane. |
| IN (Pin 2) | Input voltage supply | Accepts 2.2V–5.5V; requires ≥2.2µF ceramic decoupling placed adjacent to pin for transient immunity. |
| OUT (Pin 3) | Regulated 1.8V output | Delivers up to 1.5A; stable with 10µF ceramic output capacitor-no ESR constraints or external compensation needed. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 190mV at 1.5A enables >90% efficiency from 2.0V input-critical for energy-constrained applications. |
| No ESR dependency | Internally compensated design accepts any capacitor chemistry (ceramic, tantalum, polymer), simplifying BOM and layout. |
| Low-noise regulation | 100µVrms output noise (100Hz–100kHz) avoids adding filtering components in noise-sensitive analog subsystems. |
| Robust protection | Integrated current limit (~3.7A) and thermal shutdown prevent damage during short-circuit or thermal overload events. |
| Green packaging | Halogen- and antimony-free, lead-free construction meets RoHS 3 (2015/863/EU) and IATF16949 manufacturing standards. |
Applications
| ASIC Power Supplies in Routers | FPGA I/O Rail Regulation |
|---|---|
Use Scenario: Powers ASIC cores in enterprise-grade network routers requiring clean, tightly regulated 1.8V under dynamic packet-processing loads. IC Role / Device Role / Timing Role: Primary LDO delivering stable 1.8V to ASIC I/O banks with fast transient response to burst traffic-induced current steps. Use Value: 190mV dropout allows direct regulation from 3.3V rail; 61dB PSRR attenuates SMPS ripple, reducing bit-error rates in high-speed SerDes interfaces. | Use Scenario: Supplies configurable I/O banks of Xilinx Artix-7 FPGAs in industrial control modules operating across -40°C to +85°C. IC Role / Device Role / Timing Role: Fixed-output LDO providing low-noise 1.8V for LVCMOS18 I/O standards, synchronized to FPGA configuration timing. Use Value: 100µVrms noise prevents timing jitter in high-speed parallel buses; thermal shutdown protects against enclosure overheating during extended runtime. |
| SMPS Post-Regulation | DVD Player DSP Core Supply |
Use Scenario: Final-stage regulation after a 3.3V buck converter in set-top box power trees, where residual switching noise must be eliminated. IC Role / Device Role / Timing Role: Noise-filtering LDO isolating sensitive analog audio/video circuitry from DC/DC switching artifacts. Use Value: 61dB PSRR at 1kHz and ESR-independent stability eliminate need for LC filters-reducing board area and cost. | Use Scenario: Powers TI C67x DSP cores in consumer DVD players requiring 1.8V at ≤1.2A with minimal standby consumption. IC Role / Device Role / Timing Role: Low-quiescent LDO maintaining regulation during deep-sleep modes while enabling rapid wake-up via EN pin control. Use Value: 25nA shutdown current extends battery backup life; 0.5mA active IQ preserves efficiency in always-on HDMI hot-plug detection circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703-1802E/TO | Lower max current (250mA), higher dropout (600mV @ 250mA), no thermal shutdown | Suitable only for ultra-low-power microcontrollers-not for 1.5A FPGA/ASIC loads | Select only for sub-300mA applications where cost outweighs performance and protection requirements. |
| TLS850F0TES/V2 | Automotive AEC-Q100 qualified, 500mA output, integrated watchdog and reset functions | Designed for automotive body electronics; lacks 1.5A capability and 190mV dropout | Choose only when functional safety (ASIL-B) and automotive qualification are mandatory-otherwise over-specified. |
Compared with MCP1703-1802E/TO and TLS850F0TES/V2, AP7363-18D-13 uniquely combines 1.5A delivery, 190mV dropout, and full protection suite in a TO252 package-making it the only viable choice for high-current, space-constrained industrial and networking LDO applications.
Availability
AP7363-18D-13 is available at Aetrix Electronics and suitable for FPGA I/O regulation, ASIC core powering in routers, and SMPS post-regulation requiring stable component supply, thermal reliability, and RoHS-compliant green packaging.
Supply support for AP7363-18D-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 manufacturer specializing in discrete, analog, and mixed-signal ICs, with operations certified to IATF16949:2016 and ISO9001 standards.
The AP7363 belongs to Diodes' high-performance LDO family designed for power integrity in digital systems-emphasizing ultra-low dropout, fast transient response, and robust fault protection in compact packages.
FAQ
What is the minimum input voltage required for AP7363-18D-13 to maintain 1.8V output at 1.5A?
The minimum input voltage is 1.99V, calculated as VOUT + VDROPOUT = 1.8V + 0.19V. However, per Absolute Maximum Ratings, VIN must stay ≥2.2V to ensure reliable operation across temperature and process variation-so 2.2V is the practical minimum.
Can AP7363-18D-13 operate without an output capacitor?
No. An output capacitor is mandatory for stability and transient response. The device is stable with ≥10µF ceramic capacitors of any ESR, but zero capacitance violates the internal compensation design and will cause oscillation or regulation failure.
Is the exposed thermal pad on the TO252 package electrically connected?
Yes-the exposed tab (Pin 1/GND) is electrically connected to the die substrate and must be soldered to a PCB ground plane. It serves both thermal dissipation and electrical grounding; using it as the sole GND connection is insufficient-dedicated Pin 1 trace is still required.
Does AP7363-18D-13 support enable/disable control?
No. The AP7363-18D-13 is a fixed-output variant without an EN pin. Enable functionality is only available on adjustable versions (e.g., AP7363-ADJ) or other members of the AP736x family like AP7362. This part operates continuously when input voltage is applied.
AP7363-18D-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:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.24V @ 1.5A
- Current - Output:
- 1.5A
- Current - Quiescent (Iq):
- 1.2 mA
- Current - Supply (Max):
- -
- PSRR:
- 65dB ~ 61dB (120Hz ~ 1kHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
AP7363-18D-13 FAQ
1.How can I place an order for AP7363-18D-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7363-18D-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 AP7363-18D-13 reliable?
The price and inventory of AP7363-18D-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7363-18D-13 is usually 5 days.
3.What payment methods are accepted for AP7363-18D-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7363-18D-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7363-18D-13?
AP7363-18D-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7363-18D-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 AP7363-18D-13?
For technical support, including AP7363-18D-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7363-18D-13 requirements.
6.How does Aetrix verify that AP7363-18D-13 is sourced from the original manufacturer or authorized distributors?
All AP7363-18D-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 AP7363-18D-13 meets industry standards.
7.What is the process for return or replacement of AP7363-18D-13?
All AP7363-18D-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7363-18D-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 AP7363-18D-13 part is unused and in its original packaging.
Return procedure for AP7363-18D-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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