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Diodes Incorporated AP7365-28EG-13
- Part No.:
- AP7365-28EG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP7365-28EG-13.pdf
- Description:
- IC REG LIN 2.8V 600MA SOT223-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,828
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Product details
Overview
AP7365-28EG-13 from Diodes Incorporated is a fixed-output 2.8V, 600mA low-dropout linear regulator with enable control, 35μA quiescent current, and 300mV dropout at full load-designed for FPGA I/O rail and battery-powered portable electronics requiring stable low-noise voltage regulation.
For engineers reviewing the AP7365-28EG-13 datasheet, AP7365-28EG-13 pinout, AP7365-28EG-13 application, or AP7365-28EG-13 equivalent, key selection criteria include dropout voltage under 600mA load, thermal shutdown threshold at +145°C, PSRR of 65dB at 1kHz, and compatibility with 1μF ceramic output capacitors without minimum load requirement.
Technical Context
The AP7365-28EG-13 implements a PMOS pass transistor architecture enabling ultra-low quiescent current (35μA typ.) while maintaining fast transient response-critical for GSM/TDMA baseband power sequencing. Its internal 0.8V bandgap reference and error amplifier regulate output precisely across -40°C to +85°C ambient.
Enable logic operates with VIH ≥ 1.4V and VIL ≤ 0.4V, supporting direct microcontroller GPIO interfacing. Protection circuitry includes foldback current limiting (1.4A typ.), short-circuit clamping (240mA), and thermal shutdown with 15°C hysteresis-ensuring robust operation in unregulated input environments from 2V to 6V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±2% over -40°C to +85°C - ensures stable I/O rail for 2.8V logic interfaces without external feedback components. |
| Max Output Current | 600mA continuous - supports moderate-power FPGA I/O banks or sensor signal chains without derating at 25°C ambient. |
| Dropout Voltage | 300mV at 600mA (VOUT ≥ 2.5V) - enables operation from 3.1V input, extending usable battery range in single-cell Li-ion systems. |
| Quiescent Current | 35μA typical - minimizes standby power loss in always-on subsystems such as real-time clocks or wake-up controllers. |
| PSRR | 65dB at 1kHz - suppresses switching noise from upstream DC/DC converters, preserving analog sensor accuracy and RF front-end stability. |
| Start-Up Time | 200μs - allows rapid power cycling of peripheral ICs during low-power mode transitions in portable devices. |
| Thermal Shutdown | +145°C junction threshold with +15°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
SOT223-3 (E Package) surface-mount package with exposed thermal pad (TAB) on pin 3 for enhanced heat dissipation; footprint compatible with JEDEC TO-261AA standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input voltage supply | Accepts 2V–6V input; requires ≥1μF ceramic bypass capacitor placed adjacent to pin to suppress high-frequency noise and ensure stability. |
| GND (Pin 2) | Ground reference | Low-impedance return path for input/output currents; must connect directly to thermal pad and system ground plane to minimize voltage offset and thermal resistance. |
| OUT (Pin 3 / TAB) | Regulated output | Delivers 2.8V ±2% at up to 600mA; thermal pad serves as primary current path and heatsink-requires soldered copper area ≥25mm² for reliable 600mA operation. |
Key Features
| Feature | Design Value |
|---|---|
| Low ESR capacitor support | Stable with 1μF ceramic output capacitor (ESR >15mΩ) - eliminates need for bulky tantalum or electrolytic capacitors, reducing board space and cost. |
| No-load regulation | Maintains regulation with zero output current - enables use in standby circuits where downstream loads may be fully disconnected. |
| Fast line/load transient response | Under 200mV undershoot/overshoot during 10mA↔600mA load steps - preserves signal integrity in DSP and microcontroller I/O domains. |
| Green compliance | Fully RoHS 3 compliant, halogen- and antimony-free - meets environmental requirements for consumer and industrial end equipment without process concessions. |
| Enable interface compatibility | Logic-level EN pin (VIH=1.4V, VIL=0.4V) - interoperable with 1.8V/3.3V GPIOs without level-shifting, simplifying power sequencing control. |
Applications
| Portable Medical Sensors | FPGA I/O Power |
|---|---|
Use Scenario: Continuous glucose monitor with Bluetooth LE radio and analog front-end. IC Role / Device Role / Timing Role: Primary 2.8V LDO supplying ADC reference, op-amp bias, and BLE transceiver I/O rails. Use Value: 35μA quiescent current extends battery life beyond 7 days; 65dB PSRR isolates sensitive analog measurements from digital switching noise. |
Use Scenario: Low-cost industrial FPGA development board with configurable I/O banks. IC Role / Device Role / Timing Role: Dedicated 2.8V regulator for LVCMOS25-compatible I/O bank powering external memory and peripherals. Use Value: 300mV dropout enables use of 3.3V system rail; fast 200μs start-up synchronizes with FPGA configuration clock without external delay circuits. |
| Wearable Fitness Tracker | Smart Home Sensor Hub |
Use Scenario: Multi-sensor wristband with accelerometer, optical heart-rate sensor, and NFC tag. IC Role / Device Role / Timing Role: Central 2.8V supply for mixed-signal SoC and sensor interface circuitry. Use Value: Thermal shutdown at +145°C prevents overheating during extended GPS+BLE active sessions; SOT223 thermal pad dissipates >1W with minimal PCB copper. |
Use Scenario: Battery-backed Zigbee coordinator with environmental sensors and local display. IC Role / Device Role / Timing Role: Main 2.8V regulator for MCU, RF transceiver, and capacitive touch controller. Use Value: Stable regulation across 2V–6V input range accommodates both coin-cell backup (3V) and USB-powered (5V) modes without re-design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-quiescent-current LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2802E/TO | 300mA max output, 1.8μA IQ, SOT23-3 package - lower current capacity and no enable pin. | Limited to ultra-low-power microcontrollers; unsuitable for FPGA I/O or multi-sensor loads requiring >300mA. | Select only when IQ <2μA is mandatory and peak load stays below 250mA. |
| TLS850B2TE/V1 | Automotive-grade AEC-Q100 qualified, 500mA, 45μA IQ, integrated watchdog - higher cost and qualification overhead. | Targeted at automotive body electronics; overqualified for consumer wearables or industrial sensors. | Choose only if AEC-Q100 compliance and system monitoring features are contractually required. |
Compared with MCP1700-2802E/TO and TLS850B2TE/V1, the AP7365-28EG-13 delivers optimal balance of 600mA drive capability, 35μA IQ, and enable functionality in a thermally efficient SOT223 package-making it the preferred choice for cost-sensitive, high-reliability portable electronics where performance and manufacturability are prioritized over ultra-low IQ or automotive certification.
Availability
AP7365-28EG-13 is available at Aetrix Electronics and suitable for FPGA I/O power, portable medical sensors, and smart home sensor hubs requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for AP7365-28EG-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 solutions for power management, signal integrity, and connectivity applications.
The AP7365 belongs to Diodes' precision LDO portfolio targeting battery-powered and space-constrained systems-designed to deliver low-noise, low-IQ regulation with robust protection for portable and industrial edge devices.
FAQ
What is the minimum input voltage required for stable 2.8V output at 600mA?
The AP7365-28EG-13 requires VIN ≥ 3.1V (2.8V + 300mV dropout) for full 600mA output. Below this, current capability degrades linearly; at VIN = 3.0V, maximum load is ~400mA per electrical characteristics curves on page 7 of DS32260 Rev. 11-3.
Can the EN pin be left floating, or must it be tied high?
The EN pin must not be left floating-it has no internal pull-up. To ensure reliable operation, tie EN directly to IN for always-on use, or drive it actively with a GPIO meeting VIH ≥ 1.4V and VIL ≤ 0.4V. Floating EN may cause erratic startup or oscillation due to noise coupling.
Is a minimum load required for output stability?
No minimum load is required. The AP7365-28EG-13 remains stable and regulated from 0mA to 600mA output current, as confirmed in the "No Load Stability" section (page 9) and load regulation test data (page 7) of the datasheet.
How does thermal performance differ between SOT223-E and SOT223-ER packages?
Both SOT223-E and SOT223-ER share identical thermal resistance (θJA = 142°C/W, θJC = 39°C/W) and pinout. The ER variant uses reverse-pin-order marking for automated optical inspection compatibility but delivers identical electrical and thermal behavior in PCB layout.
AP7365-28EG-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- 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):
- 2.8V
- 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-223-3
AP7365-28EG-13 FAQ
1.How can I place an order for AP7365-28EG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7365-28EG-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 AP7365-28EG-13 reliable?
The price and inventory of AP7365-28EG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7365-28EG-13 is usually 5 days.
3.What payment methods are accepted for AP7365-28EG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7365-28EG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7365-28EG-13?
AP7365-28EG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7365-28EG-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 AP7365-28EG-13?
For technical support, including AP7365-28EG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7365-28EG-13 requirements.
6.How does Aetrix verify that AP7365-28EG-13 is sourced from the original manufacturer or authorized distributors?
All AP7365-28EG-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 AP7365-28EG-13 meets industry standards.
7.What is the process for return or replacement of AP7365-28EG-13?
All AP7365-28EG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7365-28EG-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 AP7365-28EG-13 part is unused and in its original packaging.
Return procedure for AP7365-28EG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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