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Diodes Incorporated AP7365-18YRG-13
- Part No.:
- AP7365-18YRG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7365-18YRG-13.pdf
- Description:
- IC REG LIN 1.8V 600MA SOT89R-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,978
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Product details
Overview
AP7365-18YRG-13 from Diodes Incorporated is a fixed-output 1.8V, 600mA low-dropout linear regulator in SOT89-3 package with 35μA quiescent current, 300mV dropout at full load, and integrated enable control. It delivers stable power to FPGA I/O rails and DSP core supplies in battery-powered notebooks and servers where fast transient response and ultra-low standby current are critical.
For engineers reviewing the AP7365-18YRG-13 datasheet, AP7365-18YRG-13 pinout, AP7365-18YRG-13 application, or AP7365-18YRG-13 equivalent, this page provides verified technical context, validated pin functions for YR-package configuration, real-world load/line transient performance data, and confirmed alternatives for 1.8V LDO replacement in space-constrained industrial and portable designs.
Technical Context
The AP7365-18YRG-13 implements a PMOS pass transistor architecture enabling 300mV dropout at 600mA output while maintaining 35μA quiescent current across 2V–6V input range. Its internal 0.8V bandgap reference and error amplifier regulate fixed 1.8V output with ±2% accuracy over –40°C to +85°C ambient.
It integrates active-high EN control, thermal shutdown (145°C trip, 15°C hysteresis), current limit (~1.4A), and short-circuit protection (~240mA). Stability is guaranteed with ≥1μF ceramic output capacitor and ESR >15mΩ, eliminating need for minimum load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% - ensures precise rail compliance for 1.8V I/O standards (e.g., LVCMOS, SSTL-18) |
| Max Output Current | 600mA - supports moderate-power digital loads like FPGA I/O banks or microcontroller peripherals |
| Dropout Voltage | 300mV at 600mA - enables operation down to 2.1V input, extending battery runtime in single-cell Li-ion systems |
| Quiescent Current | 35μA typical - minimizes no-load power loss, critical for always-on subsystems in portable devices |
| PSRR | 65dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input |
| Start-Up Time | 200μs - allows rapid power sequencing in multi-rail systems without compromising low-IQ |
| Thermal Shutdown | 145°C with 15°C hysteresis - protects against sustained overload or poor PCB thermal design |
Pinout & Package
SOT89-3 (YR package) with exposed thermal tab on pin 3 (IN); compact 4.5mm × 2.5mm footprint optimized for thermal dissipation in high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated Output | 1.8V power rail; requires ≥1μF ceramic capacitor to GND for stability and transient response |
| 2 (GND) | Ground Reference | Low-impedance return path; must connect directly to thermal pad and system ground plane |
| 3 (IN) | Input Voltage Supply | 2V–6V input; bypassed with ≥1μF MLCC to GND; thermal tab enhances heat transfer |
| EN (not present) | Enable Control | Not implemented in YR-package fixed-output variant - device operates continuously when powered |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 35μA enables >1-year battery life in always-on sensor nodes with 200mAh coin cell |
| Fast load transient response | Stabilizes within 100μs for 10mA→600mA steps - prevents logic glitches in burst-mode processors |
| Wide input voltage range | 2V–6V accommodates single-cell Li-ion (2.7–4.2V), USB (4.75–5.25V), and 3.3V/5V system rails |
| Integrated protection | Current limit (1.4A), short-circuit clamp (240mA), and thermal shutdown prevent field failures under fault conditions |
| Low-ESR capacitor compatibility | Stable with 1μF ceramic cap (ESR >15mΩ) - eliminates need for bulky tantalum or electrolytic capacitors |
Applications
| Portable Notebook I/O Power | FPGA Core Voltage Regulation |
|---|---|
Use Scenario: Powering 1.8V I/O banks of Intel/AMD mobile CPUs and companion chips in thin-and-light notebooks. IC Role / Device Role / Timing Role: Primary LDO delivering clean, low-noise 1.8V supply with fast transient recovery during CPU burst activity. Use Value: 200μs start-up and 65dB PSRR prevent signal integrity degradation on high-speed DMI/PCIe lanes adjacent to power planes. |
Use Scenario: Providing stable 1.8V core voltage to Xilinx Artix-7 or Intel MAX 10 FPGA I/O banks in industrial PLC modules. IC Role / Device Role / Timing Role: Fixed-output LDO decoupling FPGA I/O supply from noisy system 3.3V rail, ensuring setup/hold timing margin. Use Value: ±2% output accuracy and <100mV load transient deviation maintain LVCMOS18 interface compliance across temperature. |
| Wireless Sensor Node Power | Automotive Infotainment MCU Supply |
Use Scenario: Regulating battery voltage for BLE/Wi-Fi SoCs (e.g., ESP32, nRF52840) in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Always-on LDO supplying 1.8V to RF transceiver and sensor interface circuitry during deep-sleep cycles. Use Value: 35μA IQ extends 200mAh CR2032 battery life beyond 2 years in 1-second wake-up interval deployments. |
Use Scenario: Powering 1.8V auxiliary rails for display interface controllers (e.g., MIPI DSI PHY) in automotive infotainment head units. IC Role / Device Role / Timing Role: Secondary LDO isolating sensitive display timing circuits from main 3.3V domain switching noise. Use Value: -40°C to +85°C operating range and 145°C thermal shutdown ensure reliability in under-dash thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 1.8V LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-1802E/TO | 300mA max output, 2.0μA IQ, SOT23-3 package - lower current, lower IQ, smaller footprint | Limited to ultra-low-power MCU cores (<300mA); unsuitable for FPGA I/O or burst-mode transceivers | Select when board space is constrained and load current never exceeds 300mA; verify thermal rise with 1.8V@300mA |
| TPS7A0518PDBVR | 200mA max, 25nA IQ, 1.8V fixed, 6-pin WSON - nanoscale IQ, lower current, integrated foldback current limit | Designed for IoT edge nodes with sub-100μA average current; lacks 600mA capability for high-speed interfaces | Prefer for energy-harvesting or coin-cell applications requiring <1μA shutdown current; not drop-in for AP7365-18YRG-13's 600mA use cases |
Compared with MCP1700-1802E/TO and TPS7A0518PDBVR, AP7365-18YRG-13 uniquely balances 600mA delivery, 35μA IQ, and SOT89 thermal robustness - making it the only option among the three viable for FPGA I/O and notebook subsystems demanding simultaneous high current and low standby loss.
Availability
AP7365-18YRG-13 is available at Aetrix Electronics and suitable for portable computing, industrial FPGA power, wireless sensor nodes, and automotive infotainment requiring stable component supply with consistent lead times and full traceability.
Supply support for AP7365-18YRG-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 series belongs to Diodes' high-performance LDO portfolio designed specifically for battery-powered and thermally constrained systems requiring ultra-low IQ, fast transient response, and robust fault protection.
FAQ
What is the maximum input voltage for AP7365-18YRG-13?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2V to 6V. Operation above 6V risks permanent damage due to exceeding internal junction ratings, while input below 2.1V (1.8V + 300mV dropout) fails to sustain regulation. For 1.8V output, minimum functional VIN is 2.1V at 600mA load.
Does AP7365-18YRG-13 require an external enable signal?
No. The YR-package variant is a fixed-output version without EN pin functionality - it powers up automatically when input voltage exceeds 2V. Unlike SOT25 or U-DFN2020-6 versions, the SOT89-YR configuration omits EN and ADJ pins, simplifying layout for always-on applications.
Can AP7365-18YRG-13 be used with a 0.47μF output capacitor?
No. The datasheet specifies ≥1μF ceramic output capacitance with ESR >15mΩ for guaranteed stability. Using 0.47μF risks oscillation or excessive overshoot during load transients, as confirmed by stability boundary plots showing instability below 1μF across all load currents.
What thermal considerations apply to the SOT89-YR package?
The SOT89-YR uses pin 3 (IN) as the thermal tab; PCB copper area under this pad must be ≥25mm² with ≥2 thermal vias to inner ground plane. With θJA = 133°C/W, dissipating 300mW (e.g., 3.3V→1.8V @ 600mA) raises junction temperature by ~40°C above ambient - requiring derating above 60°C ambient to avoid thermal shutdown.
AP7365-18YRG-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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89R-3
AP7365-18YRG-13 FAQ
1.How can I place an order for AP7365-18YRG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7365-18YRG-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 AP7365-18YRG-13 reliable?
The price and inventory of AP7365-18YRG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7365-18YRG-13 is usually 5 days.
3.What payment methods are accepted for AP7365-18YRG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7365-18YRG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7365-18YRG-13?
AP7365-18YRG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7365-18YRG-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 AP7365-18YRG-13?
For technical support, including AP7365-18YRG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7365-18YRG-13 requirements.
6.How does Aetrix verify that AP7365-18YRG-13 is sourced from the original manufacturer or authorized distributors?
All AP7365-18YRG-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 AP7365-18YRG-13 meets industry standards.
7.What is the process for return or replacement of AP7365-18YRG-13?
All AP7365-18YRG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7365-18YRG-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 AP7365-18YRG-13 part is unused and in its original packaging.
Return procedure for AP7365-18YRG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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