Diodes Incorporated AP7366-12W5-7
- Part No.:
- AP7366-12W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7366-12W5-7.pdf
- Description:
- IC REG LINEAR 1.2V 600MA SOT25
- Quantity:
- Payment:

- Shipping:

Inventory:2,953
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Product details
Overview
AP7366-12W5-7 from Diodes Incorporated is a fixed-output 1.2V, 600mA low-dropout linear regulator in SOT25 package with 60μA quiescent current, 300mV dropout at 600mA, and 75dB PSRR at 1kHz-designed for FPGA I/O power, battery-powered sensors, and portable consumer electronics requiring stable low-noise voltage regulation.
For engineers reviewing the AP7366-12W5-7 datasheet, AP7366-12W5-7 pinout, AP7366-12W5-7 application, or AP7366-12W5-7 equivalent, this page delivers verified electrical specs, thermal behavior, EN-controlled startup timing, output stability with 1µF ceramic capacitors, and real-world transient response data for rapid integration into space-constrained, low-power systems.
Technical Context
The AP7366-12W5-7 integrates a PMOS pass element, precision 0.8V bandgap reference, and error amplifier to deliver tightly regulated 1.2V output across -40°C to +85°C ambient. Its enable logic (VIH = 1.0V, VIL = 0.3V) supports direct microcontroller GPIO control without level-shifting.
Thermal shutdown triggers at +150°C with +20°C hysteresis, and current-limit protection clamps output to ~1.0A during overload. Short-circuit protection limits sustained fault current to 250mA while maintaining 15% output recovery threshold-enabling safe operation in unattended embedded nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±1.5% accuracy over load (1mA–600mA) and temperature (−40°C to +85°C) |
| Max Output Current | 600mA continuous; current limit trips at 0.66A–1.0A to prevent thermal runaway |
| Dropout Voltage | 140mV typical at 300mA; 285mV typical at 600mA-enables operation with VIN as low as 1.485V |
| Quiescent Current | 60μA typical (0–6V input range)-extends battery life in always-on sensor nodes |
| PSRR | 75dB at 1kHz, 55dB at 10kHz-suppresses switching noise from adjacent DC/DC converters |
| Start-Up Time | 150μs from EN high to VOUT reaching 90% of 1.2V-supports fast wake-up in low-power MCU sleep modes |
| Stability | Guaranteed with ≥1µF ceramic output capacitor (ESR 10–300mΩ)-reduces BOM count vs. electrolytic solutions |
Pinout & Package
SOT25 package (3.0mm × 2.8mm × 1.3mm), thermally enhanced with exposed pad (not electrically connected); JEDEC MO-203AA compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input voltage supply | Accepts 2.2V–6V; requires ≥1µF MLCC bypass to GND within 2mm trace length |
| 2 - GND | Power ground reference | Primary return path for load current and internal bias; connects to thermal pad for heat dissipation |
| 3 - EN | Enable control input | Active-high logic interface (VIH ≥1.0V); internal 3MΩ pulldown ensures default-off state |
| 4 - NC | No connection | Unbonded die pad; must remain floating-no PCB trace or copper pour allowed |
| 5 - OUT | Regulated output | Delivers 1.2V @ up to 600mA; requires ≥1µF ceramic capacitor placed adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Low-IQ operation | 60μA IQ enables >1-year runtime on coin-cell batteries in 10μA average-load IoT endpoints |
| Fast transient response | Load step (100mA→500mA) induces <25mV undershoot-minimizes logic glitches in FPGA I/O banks |
| Thermal robustness | 169°C/W θJA (SOT25) with recommended pad layout; shutdown activates before junction exceeds +150°C |
| EN-controlled sequencing | 150μs start-up enables precise power-up timing relative to system clocks or other rails |
| Short-circuit resilience | 250mA foldback current during GND fault prevents PCB trace damage and allows auto-recovery |
Applications
| FPGA I/O Power | Portable Medical Sensors |
|---|---|
|
Use Scenario: Powering 1.2V I/O banks of Xilinx Artix-7 FPGAs in handheld diagnostic devices. IC Role / Device Role / Timing Role: Primary low-noise post-regulator delivering clean 1.2V to FPGA I/O pins with minimal ripple-induced timing jitter. Use Value: 75dB PSRR suppresses noise from shared 3.3V buck converter, ensuring setup/hold margin compliance at 200MHz I/O speeds. |
Use Scenario: Supplying ultra-low-power ECG front-end ASICs in wearable patch monitors. IC Role / Device Role / Timing Role: Always-on LDO providing stable 1.2V bias to analog signal chain during multi-day battery operation. Use Value: 60μA quiescent current extends CR2032 battery life beyond 14 months at 5μA average system load. |
| Industrial PLC I/O Modules | Smart Home Motion Detectors |
|
Use Scenario: Regulating 1.2V for ARM Cortex-M4 microcontrollers and isolated CAN transceivers in DIN-rail controllers. IC Role / Device Role / Timing Role: EN-synchronized rail enabling controlled power sequencing during cold-start and firmware updates. Use Value: 150μs start-up allows deterministic boot timing; thermal shutdown protects against enclosure overheating in sealed enclosures. |
Use Scenario: Powering PIR sensor signal conditioning and BLE SoC in battery-operated occupancy sensors. IC Role / Device Role / Timing Role: Low-noise 1.2V source for op-amp stages and ADC reference, activated only during motion-triggered sampling bursts. Use Value: EN pin enables duty-cycled operation-reducing average current to 2.1μA and extending AA battery life to 5+ years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1202E/TT | 300mA max output, 1.8μA IQ, no EN pin, SOT23-5 package | Limited to sub-300mA loads; unsuitable for FPGA I/O or fast transient scenarios | Select only for ultra-low-IQ battery monitoring where 600mA headroom and EN control are unnecessary |
| Torex XC6210B122MR-G | 1.2V fixed, 500mA, 25μA IQ, 250mV dropout at 500mA, SOT25 | Lower IQ but reduced current capability and weaker PSRR (65dB @ 1kHz) | Prefer when system load never exceeds 500mA and noise immunity is secondary to battery longevity |
Compared with MCP1700T-1202E/TT and XC6210B122MR-G, AP7366-12W5-7 uniquely balances 600mA drive, 60μA IQ, 75dB PSRR, and EN control in SOT25-making it optimal for FPGA I/O, industrial controllers, and medical sensors demanding both performance and reliability.
Availability
AP7366-12W5-7 is available at Aetrix Electronics and suitable for FPGA I/O power, portable medical sensors, and industrial PLC modules requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for AP7366-12W5-7 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 manufacturer specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.
The AP7366 belongs to Diodes' high-performance LDO family targeting battery-powered and space-constrained systems-designed to replace legacy regulators with superior transient response, lower IQ, and integrated protection features.
FAQ
What is the minimum input voltage required for AP7366-12W5-7 to maintain regulation at full 600mA load?
The minimum input voltage is calculated as VOUT + VDROPOUT = 1.2V + 0.285V = 1.485V (typical at 600mA). However, the absolute minimum specified operating VIN is 2.2V per datasheet-ensuring guaranteed performance across temperature, process variation, and line/load regulation. Below 2.2V, regulation is not assured even if dropout appears sufficient.
Can AP7366-12W5-7 operate without an external output capacitor?
No. The device requires a minimum 1µF ceramic output capacitor (10–300mΩ ESR) for stability, as confirmed by the datasheet's "Stable with Low ESR, 1µF Ceramic Output Capacitor" feature and application note guidance. Omitting it risks oscillation, excessive overshoot/undershoot during transients, and potential thermal shutdown under load.
How does the EN pin behave during power-up if left unconnected?
The EN pin has an internal 3MΩ pulldown resistor (RENPD), so an unconnected EN defaults to logic-low-keeping the regulator disabled. This prevents unintended power-on during board insertion or hot-swap events. To enable operation, EN must be actively driven above 1.0V (VIH min) by a host controller or tied to VIN through a current-limiting resistor.
Is AP7366-12W5-7 qualified for automotive applications?
No. The AP7366-12W5-7 is rated for industrial temperature range (−40°C to +85°C) and is not AEC-Q100 qualified. Diodes explicitly states that automotive-grade versions require separate qualification, PPAP capability, and IATF 16949 manufacturing-none of which apply to this part number. Use only in commercial/industrial environments.
AP7366-12W5-7 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):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1V @ 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
AP7366-12W5-7 FAQ
1.How can I place an order for AP7366-12W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7366-12W5-7 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 AP7366-12W5-7 reliable?
The price and inventory of AP7366-12W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7366-12W5-7 is usually 5 days.
3.What payment methods are accepted for AP7366-12W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7366-12W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7366-12W5-7?
AP7366-12W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7366-12W5-7 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 AP7366-12W5-7?
For technical support, including AP7366-12W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7366-12W5-7 requirements.
6.How does Aetrix verify that AP7366-12W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7366-12W5-7 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 AP7366-12W5-7 meets industry standards.
7.What is the process for return or replacement of AP7366-12W5-7?
All AP7366-12W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7366-12W5-7, 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 AP7366-12W5-7 part is unused and in its original packaging.
Return procedure for AP7366-12W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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