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Diodes Incorporated AP7365-18YG-13
- Part No.:
- AP7365-18YG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7365-18YG-13.pdf
- Description:
- IC REG LINEAR 1.8V 600MA SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,288
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Product details
Overview
AP7365-18YG-13 from Diodes Incorporated is a fixed-output 1.8V, 600mA low-dropout linear regulator in SOT89 package with 35μA quiescent current, 300mV dropout at full load, and integrated enable control. It delivers stable power to FPGA I/O rails, notebook CPU cores, and portable consumer electronics where battery life and fast transient response are critical.
For engineers reviewing the AP7365-18YG-13 datasheet, AP7365-18YG-13 pinout, AP7365-18YG-13 application, or AP7365-18YG-13 equivalent, this page provides verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options for low-power LDO selection.
Technical Context
The AP7365-18YG-13 implements a PMOS pass transistor architecture enabling ultra-low dropout (300mV @ 600mA) and high PSRR (65dB @ 1kHz). Its internal 0.8V bandgap reference and error amplifier support precise 1.8V output regulation across -40°C to +85°C ambient.
It integrates active-high EN control, thermal shutdown (145°C trip), current limit (~1.4A), and short-circuit protection (~240mA). Stability is guaranteed with ≥1μF ceramic output capacitor and no minimum load requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% over -40°C to +85°C - ensures reliable logic-level supply for 1.8V I/O standards. |
| Max Output Current | 600mA continuous - supports mid-power digital loads like FPGA I/O banks or microcontroller peripherals. |
| Quiescent Current | 35μA typical - minimizes standby power loss in battery-backed systems such as IoT sensors and wearables. |
| Dropout Voltage | 300mV at 600mA - enables operation down to VIN = 2.1V while maintaining regulation, extending battery runtime. |
| PSRR | 65dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding sensitive analog or RF circuitry. |
| Start-Up Time | 200μs - allows rapid power sequencing in multi-rail systems without compromising system responsiveness. |
| Thermal Shutdown | 145°C junction temperature - protects against sustained overload or poor PCB thermal design without latch-off. |
Pinout & Package
SOT89-3 (Y Package) with exposed thermal pad on pin 3 (IN); compact 4.5mm × 2.5mm footprint optimized for thermal performance in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated output voltage terminal | Delivers stable 1.8V; requires ≥1μF ceramic capacitor placed adjacent to pin for transient stability. |
| 2 (GND) | Ground reference and thermal return path | Must connect directly to large copper pour; serves as primary heat dissipation path via thermal pad on pin 3. |
| 3 (IN) | Input voltage supply terminal | Accepts 2V–6V input; connects to thermal pad for enhanced thermal resistance (θJA = 133°C/W). |
| EN (not present) | Enable control input | Not implemented in Y-package fixed-output variant; regulator operates continuously when powered. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 300mV at 600mA enables operation from single-cell Li-ion (3.0V min) or two-cell alkaline (2.4V min) sources. |
| Fast transient response | Stable under 10mA ↔ 600mA load steps with <200mV overshoot/undershoot - critical for GSM/DSP burst-mode operation. |
| Ultra-low IQ | 35μA quiescent current reduces no-load power consumption to <70μW at 2V input - extends shelf life of battery-powered devices. |
| Integrated protection | Current limit (~1.4A), short-circuit clamp (~240mA), and thermal shutdown prevent damage during fault conditions without external components. |
| Capacitor compatibility | Stable with 1μF ceramic output capacitor (ESR >15mΩ) - eliminates need for costly tantalum or polymer capacitors. |
Applications
| Portable Consumer Electronics | FPGA & DSP I/O Power |
|---|---|
|
Use Scenario: Powering 1.8V I/O banks in handheld tablets and smart speakers with intermittent high-current bursts. IC Role / Device Role / Timing Role: Primary low-noise, fast-response LDO supplying clean VCCIO to FPGA configuration interfaces and peripheral controllers. Use Value: 65dB PSRR rejects noise from shared PMIC switchers; 200μs start-up enables instant wake-from-sleep without rail collapse. |
Use Scenario: Providing dedicated 1.8V supply to high-speed SerDes transceivers and memory interface buffers. IC Role / Device Role / Timing Role: Local point-of-load regulator decoupling high di/dt currents from main system rail. Use Value: 300mV dropout preserves headroom for dynamic voltage scaling; fast load transient response prevents timing violations during data bursts. |
| Notebook Computer Subsystems | Industrial Sensor Nodes |
|
Use Scenario: Supplying always-on logic for keyboard controllers, touchpads, and embedded security modules. IC Role / Device Role / Timing Role: Always-active LDO delivering regulated 1.8V independent of main CPU rail state. Use Value: 35μA IQ minimizes battery drain during suspend mode; -40°C to +85°C rating ensures reliability across chassis thermal zones. |
Use Scenario: Powering ultra-low-power microcontrollers and analog front-ends in remote environmental monitors. IC Role / Device Role / Timing Role: Primary voltage regulator for energy-harvesting or coin-cell-powered edge nodes. Use Value: No minimum load requirement allows stable operation at sub-100μA sleep currents; RoHS/Green compliance meets industrial safety mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-1802E/TO | 300mA max output, 2.0μA IQ, SOT23-3 package - lower current, far lower quiescent current. | Best suited for sub-100mA sensor nodes where ultra-low IQ dominates over output capability. | Select if load current ≤300mA and standby power is the top priority; not suitable for 600mA FPGA I/O. |
| TPS7A0518PDBVR | 200mA max output, 25μA IQ, 1.8V fixed, SOT23-5 - smaller package, lower current, slightly better IQ. | Targeted at space-constrained wearable subsystems with light loads and aggressive size limits. | Choose only for <200mA applications requiring minimal board area; lacks thermal robustness of SOT89 for sustained loads. |
Compared with MCP1700-1802E/TO and TPS7A0518PDBVR, the AP7365-18YG-13 uniquely balances 600mA delivery, 35μA IQ, and SOT89 thermal performance - making it the only viable option among the three for thermally demanding, medium-current 1.8V rails.
Availability
AP7365-18YG-13 is available at Aetrix Electronics and suitable for portable consumer electronics, FPGA I/O power, and notebook subsystems requiring stable component supply, long-term lifecycle assurance, and traceable green sourcing.
Supply support for AP7365-18YG-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 solutions for power management, signal integrity, and connectivity applications.
The AP7365 belongs to Diodes' high-performance LDO family designed specifically for battery-powered and thermally constrained systems requiring fast transient response, low dropout, and robust fault protection.
FAQ
Is AP7365-18YG-13 pin-compatible with other AP7365 variants?
No - the Y-package (SOT89) has only three pins (OUT, GND, IN) and omits the EN and ADJ terminals found in SOT25 and U-DFN2020-6 versions. It is functionally fixed-output only and cannot be reconfigured for adjustable operation or enable control.
What is the maximum allowable input voltage for AP7365-18YG-13?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2.0V to 6.0V. Operation above 6.0V risks exceeding thermal limits under load due to increased power dissipation (PD = (VIN – 1.8V) × IOUT).
Can AP7365-18YG-13 operate without an output capacitor?
No - a minimum 1μF ceramic output capacitor is required for stability. Omitting it causes oscillation and unregulated output. The capacitor must be placed within 2mm of OUT and GND pins with low-inductance layout to maintain fast transient response.
Does AP7365-18YG-13 require a minimum load current to maintain regulation?
No - the device remains stable and fully regulated from zero load up to 600mA. This eliminates the need for dummy loads in low-power standby modes, reducing system-level power waste and simplifying design.
AP7365-18YG-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 600mA
- Current - Output:
- 600mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (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:
- SOT-89-3
AP7365-18YG-13 FAQ
1.How can I place an order for AP7365-18YG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7365-18YG-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 AP7365-18YG-13 reliable?
The price and inventory of AP7365-18YG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7365-18YG-13 is usually 5 days.
3.What payment methods are accepted for AP7365-18YG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7365-18YG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7365-18YG-13?
AP7365-18YG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7365-18YG-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 AP7365-18YG-13?
For technical support, including AP7365-18YG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7365-18YG-13 requirements.
6.How does Aetrix verify that AP7365-18YG-13 is sourced from the original manufacturer or authorized distributors?
All AP7365-18YG-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 AP7365-18YG-13 meets industry standards.
7.What is the process for return or replacement of AP7365-18YG-13?
All AP7365-18YG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7365-18YG-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 AP7365-18YG-13 part is unused and in its original packaging.
Return procedure for AP7365-18YG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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