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Diodes Incorporated AP7365-39YRG-13
- Part No.:
- AP7365-39YRG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7365-39YRG-13.pdf
- Description:
- IC REG LIN 3.9V 600MA SOT89R-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,461
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Product details
Overview
AP7365-39YRG-13 from Diodes Incorporated is a fixed-output 3.9V, 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 battery-powered consumer electronics where low standby power and fast transient response are critical.
For engineers reviewing the AP7365-39YRG-13 datasheet, AP7365-39YRG-13 pinout, AP7365-39YRG-13 application, or AP7365-39YRG-13 equivalent, key selection criteria include dropout voltage at 600mA, PSRR at 1kHz, thermal shutdown threshold, EN logic thresholds, and compatibility with 1μF ceramic output capacitors.
Technical Context
The AP7365-39YRG-13 implements a PMOS pass transistor architecture enabling low dropout (300mV @ 600mA) and high PSRR (65dB @ 1kHz). Its internal 0.8V bandgap reference and error amplifier regulate output precisely across -40°C to +85°C ambient.
Enable functionality uses TTL-compatible logic thresholds (VIH ≥ 1.4V, VIL ≤ 0.4V), and protection circuitry includes foldback current limiting (1.4A typical), short-circuit clamping (240mA), and thermal shutdown at +145°C with +15°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.9V ±2% over -40°C to +85°C and 1mA–600mA load |
| Max Output Current | 600mA continuous; internal current limit protects against overload |
| Dropout Voltage | 300mV at 600mA output - enables operation with VIN as low as 4.2V |
| Quiescent Current | 35μA typical - minimizes battery drain in always-on systems |
| PSRR | 65dB at 1kHz - suppresses ripple from noisy DC-DC converters upstream |
| Start-Up Time | 200μs - supports rapid power-state transitions in portable devices |
| Thermal Shutdown | Triggers at +145°C junction temperature with +15°C hysteresis |
Pinout & Package
SOT89-3 (YR package) with exposed thermal tab on pin 3; compact 4.5mm × 2.5mm footprint optimized for heat dissipation in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 3) | Input voltage supply | Accepts 2V–6V; requires ≥1μF MLCC bypass to GND near pin |
| OUT (Pin 1) | Regulated output | Delivers 3.9V; stable with ≥1μF ceramic capacitor (ESR >15mΩ) |
| GND (Pin 2) | Ground reference | Common return path; connects to thermal pad for heatsinking |
| EN (Not present) | Enable control input | Not implemented in YR-package fixed-output variant; permanently enabled |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 65dB PSRR at 1kHz reduces sensitivity to upstream switching noise |
| Fast transient response | Stable under 10mA ↔ 600mA load steps without overshoot or excessive droop |
| Thermal robustness | θJA = 133°C/W (SOT89) enables 600mA operation up to +85°C ambient |
| Minimal external components | Operates with only two 1μF ceramic capacitors - no external feedback resistors |
| Protection integration | Combines current limit, short-circuit clamp, and thermal shutdown in single die |
Applications
| FPGA I/O Power | Portable Medical Sensors |
|---|---|
|
Use Scenario: Powering 3.3V/3.9V I/O banks of Xilinx Artix-7 FPGAs in handheld diagnostic tools. IC Role / Device Role / Timing Role: Primary LDO delivering clean, low-noise bias to configurable I/O cells during dynamic reconfiguration. Use Value: 35μA quiescent current extends battery life between measurements; 200μs start-up enables instant wake-from-sleep I/O activation. |
Use Scenario: Supplying analog front-end and BLE SoC in wearable ECG patches. IC Role / Device Role / Timing Role: Fixed 3.9V rail generator for precision ADC reference and RF transceiver core. Use Value: 300mV dropout allows operation down to 4.2V Li-ion voltage; 65dB PSRR prevents RF coupling into sensitive analog paths. |
| Industrial IoT Gateways | Smart Home Hub Controllers |
|
Use Scenario: Regulating auxiliary 3.9V supply for RS-485 transceivers and microcontroller peripherals. IC Role / Device Role / Timing Role: Secondary LDO providing isolated, low-noise power for communication interfaces. Use Value: Thermal shutdown (+145°C) and current limit prevent field failure under sustained bus fault conditions. |
Use Scenario: Powering voice processing ASIC and flash memory in always-listening smart speakers. IC Role / Device Role / Timing Role: Always-on LDO maintaining 3.9V rail during deep-sleep modes between voice triggers. Use Value: Ultra-low 35μA IQ minimizes standby power; fast load transient response avoids brownout during wake-up bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3902E/TO | 300mA max output, 2μA IQ, 600mV dropout at 250mA | Limited to ultra-low-power sensor nodes; insufficient for 600mA FPGA I/O | Select when IQ <5μA is mandatory and load ≤300mA |
| TPS7A2039PDQNR | 600mA, 6.5μA IQ, 170mV dropout at 500mA, 85dB PSRR @ 10kHz | Superior PSRR and lower dropout but requires 2.2μF output capacitor | Prefer for noise-sensitive RF/analog circuits where board space allows larger cap |
Compared with MCP1700-3902E/TO, AP7365-39YRG-13 delivers 2× output current and faster transient response; versus TPS7A2039PDQNR, it trades 20dB PSRR bandwidth for guaranteed 1μF stability and broader input range (2V–6V vs. 1.6V–6V).
Availability
AP7365-39YRG-13 is available at Aetrix Electronics and suitable for FPGA I/O power, portable medical sensors, industrial IoT gateways, and smart home hub controllers requiring stable component supply with consistent SOT89-3 packaging and traceable green compliance.
Supply support for AP7365-39YRG-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 power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP7365 belongs to Diodes' low-quiescent-current LDO portfolio, designed specifically for battery-powered and energy-efficient systems demanding high accuracy, fast transient response, and robust fault protection.
FAQ
Is AP7365-39YRG-13 pin-compatible with other SOT89-3 LDOs?
No - AP7365-39YRG-13 uses IN/GND/OUT pinout (3/2/1), while many SOT89-3 regulators use OUT/GND/IN (1/2/3) or OUT/IN/GND configurations. Physical pin mapping must be verified per datasheet; incorrect PCB layout causes functional failure.
Can AP7365-39YRG-13 operate with a 1μF output capacitor?
Yes - the device is explicitly characterized and guaranteed stable with ≥1μF ceramic output capacitors having ESR >15mΩ. Larger capacitance improves transient response but is not required for basic regulation.
What is the maximum input voltage for continuous operation?
The absolute maximum input voltage is 6.5V, but recommended continuous operation is limited to 6.0V per datasheet specifications. Exceeding 6.0V risks accelerated parametric drift and reduced long-term reliability, especially at elevated temperatures.
Does AP7365-39YRG-13 include an enable pin?
No - the YR suffix denotes the SOT89-3 fixed-output variant without EN functionality. Enable is only available in SOT25 and U-DFN2020-6 packages (e.g., AP7365-39WG-7). In YR, regulation is always active when VIN is applied.
AP7365-39YRG-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):
- 3.9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 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
AP7365-39YRG-13 FAQ
1.How can I place an order for AP7365-39YRG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7365-39YRG-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 AP7365-39YRG-13 reliable?
The price and inventory of AP7365-39YRG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7365-39YRG-13 is usually 5 days.
3.What payment methods are accepted for AP7365-39YRG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7365-39YRG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7365-39YRG-13?
AP7365-39YRG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7365-39YRG-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 AP7365-39YRG-13?
For technical support, including AP7365-39YRG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7365-39YRG-13 requirements.
6.How does Aetrix verify that AP7365-39YRG-13 is sourced from the original manufacturer or authorized distributors?
All AP7365-39YRG-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 AP7365-39YRG-13 meets industry standards.
7.What is the process for return or replacement of AP7365-39YRG-13?
All AP7365-39YRG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7365-39YRG-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 AP7365-39YRG-13 part is unused and in its original packaging.
Return procedure for AP7365-39YRG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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