Diodes Incorporated AP7366EA-25W5-7
- Part No.:
- AP7366EA-25W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7366EA-25W5-7.pdf
- Description:
- LDO CMOS HICURR SOT25 T&R 3K
- Quantity:
- Payment:

- Shipping:

Inventory:1,377
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Product details
Overview
AP7366EA-25W5-7 from Diodes Incorporated is a 600mA fixed-output (2.5V) low-dropout linear regulator in SOT25 package, featuring 60μA quiescent current, 300mV dropout at full load, 75dB PSRR at 1kHz, and integrated enable control, thermal shutdown, and current limiting-designed for power management in battery-powered portable electronics and FPGA I/O rails.
For engineers reviewing the AP7366EA-25W5-7 datasheet, AP7366EA-25W5-7 pinout, AP7366EA-25W5-7 application, or AP7366EA-25W5-7 equivalent, key selection criteria include output voltage accuracy (±1% for 2.5V), fast 150μs start-up time, stability with 1μF ceramic output capacitor, and operation across –40°C to +85°C ambient temperature.
Technical Context
The AP7366EA-25W5-7 implements a PMOS pass transistor architecture enabling low dropout (300mV @ 600mA) and high PSRR (75dB @ 1kHz). Its internal 0.8V bandgap reference and error amplifier regulate output precisely without external feedback components in fixed-voltage configuration.
Enable logic operates with VIH ≥ 1.0V and VIL ≤ 0.3V, supporting direct microcontroller GPIO control. Thermal shutdown activates at ~150°C with 20°C hysteresis, and short-circuit protection limits output current to ~250mA when OUT is grounded.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% (ensures stable core/I/O rail for FPGA or MCU without external resistors) |
| Max Output Current | 600mA continuous (supports moderate-power digital loads like sensor interfaces or memory I/O) |
| Quiescent Current | 60μA typical (enables >1-year battery life in always-on IoT sensors with 200mAh coin cell) |
| Dropout Voltage | 300mV at 600mA (allows regulation from 2.8V input down to 2.5V output, critical for single-cell Li-ion systems) |
| PSRR | 75dB at 1kHz (suppresses switching noise from adjacent DC/DC converters feeding shared input rail) |
| Start-up Time | 150μs (enables rapid power sequencing in wake-from-sleep applications) |
| Thermal Shutdown | Triggers at +150°C junction temperature with +20°C hysteresis (prevents permanent damage during sustained overload) |
| Input Voltage Range | 2.2V to 6.0V (compatible with Li-ion, Li-Po, and 3.3V/5V system rails) |
Pinout & Package
SOT25 package (3.0mm × 2.8mm × 1.3mm), thermally enhanced with exposed pad not connected internally; suitable for space-constrained portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input voltage supply | Must be bypassed with ≥1μF MLCC close to pin; supports 2.2–6.0V input range |
| 2 - GND | Power ground reference | Low-impedance return path for input/output currents; connects to PCB ground plane |
| 3 - EN | Enable control input | Active-high logic: ≥1.0V enables regulator; ≤0.3V disables output and reduces IQ to 0.05μA |
| 4 - NC | No internal connection | Must be left floating or tied to GND; no electrical function or thermal benefit |
| 5 - OUT | Regulated output voltage | Delivers 2.5V ±1% at up to 600mA; requires ≥1μF ceramic capacitor to GND for stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 60μA enables >10-year shelf life in battery-backed real-time clocks and energy-harvesting nodes |
| Fast transient response | Load step recovery within 200μs (100mA ↔ 500mA) minimizes voltage droop on sensitive analog/DSP cores |
| Stable with 1μF ceramic output cap | Eliminates need for large tantalum or electrolytic capacitors-reducing BOM cost and board area |
| Integrated protection suite | Current limit (~1A), short-circuit clamp (~250mA), and thermal shutdown prevent field failures under fault conditions |
| Wide operating temperature | –40°C to +85°C ambient rating supports industrial and automotive cabin applications |
Applications
| Portable Medical Sensors | FPGA I/O Power Rails |
|---|---|
|
Use Scenario: Continuous glucose monitor with Bluetooth LE radio and ultra-low-power ADC. IC Role / Device Role / Timing Role: Primary 2.5V supply for analog front-end and BLE SoC I/O domain. Use Value: 60μA IQ extends CR2032 battery life beyond 2 years; 150μs start-up enables instant wake-on-event without voltage brownout. |
Use Scenario: Low-cost industrial FPGA development board powering I/O banks from shared 3.3V rail. IC Role / Device Role / Timing Role: Local point-of-load regulator delivering clean 2.5V to FPGA I/O banks requiring tight voltage tolerance. Use Value: 75dB PSRR suppresses ripple from upstream buck converter; ±1% output accuracy meets Xilinx Spartan-7 I/O spec. |
| Smart Home Motion Detectors | Automotive Cabin Infotainment Peripherals |
|
Use Scenario: PIR-based occupancy sensor with wake-on-motion and sub-10μA sleep current. IC Role / Device Role / Timing Role: Always-on 2.5V supply for PIR signal conditioner and microcontroller RTC. Use Value: 0.05μA shutdown current preserves battery during 99.9% of idle time; thermal shutdown prevents overheating in enclosed plastic housings. |
Use Scenario: USB-C accessory module in vehicle center console requiring 2.5V for level-shifting ICs. IC Role / Device Role / Timing Role: Secondary LDO converting 3.3V system rail to 2.5V for interface logic. Use Value: –40°C to +85°C rating ensures reliability in unventilated console environments; 300mV dropout allows operation during cold-crank (input dips to 2.8V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-IQ, fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2502E/TO | 300mA max output, 2μA IQ, TO-92 package; lower current, much lower IQ, through-hole only | Not suitable for 600mA FPGA I/O rails; viable only for sub-100mA sensor nodes | Select only if <100mA load and ultra-deep sleep dominate design requirements |
| Torex XC6219B252MR-G | 600mA, 15μA IQ, SOT-25, but only 1.8V–6.0V input; no thermal shutdown or short-circuit clamp | Lacks fault protection-requires external current limiting for automotive use | Choose only in cost-sensitive consumer applications where robustness is secondary to IQ |
Compared with MCP1700-2502E/TO and XC6219B252MR-G, AP7366EA-25W5-7 uniquely balances 600mA capability, 60μA IQ, full protection set, and SOT25 footprint-making it optimal for space-constrained, safety-aware portable and industrial designs.
Availability
AP7366EA-25W5-7 is available at Aetrix Electronics and suitable for portable medical sensors, FPGA I/O power rails, smart home motion detectors, and automotive cabin infotainment peripherals requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for AP7366EA-25W5-7 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, with manufacturing certified to IATF 16949 and quality systems aligned to AEC-Q200 standards.
The AP7366EA belongs to Diodes' high-efficiency, low-quiescent-current LDO family-engineered specifically for battery-powered and thermally constrained applications demanding precision regulation, fast transient response, and comprehensive fault protection.
FAQ
What is the minimum input voltage required for AP7366EA-25W5-7 to maintain 2.5V output at 600mA?
The device requires VIN ≥ 2.8V to sustain 2.5V output at full 600mA load, based on its 300mV dropout specification. At lower input voltages (e.g., 2.55V), output drops below regulation due to insufficient headroom. Input must remain ≥2.2V minimum per absolute ratings, but functional regulation demands higher margin under load.
Can AP7366EA-25W5-7 operate without an output capacitor?
No. A minimum 1μF ceramic capacitor between OUT and GND is mandatory for stability and transient response. Omitting it causes oscillation and potential damage. The datasheet explicitly states the device is "stable with low ESR, 1μF ceramic output capacitor"-no-load stability does not waive this requirement.
Is the EN pin internally pulled up or down?
The EN pin has no internal pull-up or pull-down resistor. It exhibits leakage current ≤±0.1μA and requires an external voltage source meeting VIH ≥1.0V and VIL ≤0.3V. If unused, it must be hard-wired to IN (not left floating) to ensure reliable turn-on.
Does AP7366EA-25W5-7 meet AEC-Q100 for automotive use?
No. While rated for –40°C to +85°C ambient and built in IATF 16949 facilities, AP7366EA-25W5-7 is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., AP7366Q series) with full qualification-this part is intended for industrial and consumer applications only.
AP7366EA-25W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.38V @ 600mA
- Current - Output:
- 600mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 55dB (1kHz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7366EA-25W5-7 FAQ
1.How can I place an order for AP7366EA-25W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7366EA-25W5-7 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 AP7366EA-25W5-7 reliable?
The price and inventory of AP7366EA-25W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7366EA-25W5-7 is usually 5 days.
3.What payment methods are accepted for AP7366EA-25W5-7?
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4.How is shipping managed for AP7366EA-25W5-7?
AP7366EA-25W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7366EA-25W5-7 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 AP7366EA-25W5-7?
For technical support, including AP7366EA-25W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7366EA-25W5-7 requirements.
6.How does Aetrix verify that AP7366EA-25W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7366EA-25W5-7 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 AP7366EA-25W5-7 meets industry standards.
7.What is the process for return or replacement of AP7366EA-25W5-7?
All AP7366EA-25W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7366EA-25W5-7, 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 AP7366EA-25W5-7 part is unused and in its original packaging.
Return procedure for AP7366EA-25W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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