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Diodes Incorporated AP7366EA-36SN-7
- Part No.:
- AP7366EA-36SN-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP7366EA-36SN-7.pdf
- Description:
- LDO CMOS HICURR U-DFN2020-6 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:2,973
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Product details
Overview
AP7366EA-36SN-7 from Diodes Incorporated is a fixed-output 3.6V, 600mA low-dropout linear regulator in U-DFN2020-6 package, featuring 60μA quiescent current, 300mV dropout at full load, and integrated enable control. It delivers stable power to FPGA I/O rails and battery-powered microcontrollers where low standby power and fast transient response are critical.
For engineers reviewing the AP7366EA-36SN-7 datasheet, AP7366EA-36SN-7 pinout, AP7366EA-36SN-7 application, or AP7366EA-36SN-7 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 AP7366EA-36SN-7 integrates a PMOS pass element with bandgap reference, error amplifier, and current-limit/thermal-shutdown protection circuitry. Its fixed 3.6V output is internally trimmed, eliminating external feedback resistors and reducing BOM count.
It operates across 2.2V–6V input range and maintains regulation down to 300mV headroom at 600mA. The 75dB PSRR at 1kHz and 150μs startup time support noise-sensitive analog and digital loads requiring clean, rapidly enabled supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.6V ±1% accuracy ensures reliable biasing of 3.3V-tolerant I/O interfaces without calibration. |
| Max Output Current | 600mA continuous output supports mid-power FPGA banks or dual-core MCU subsystems. |
| Quiescent Current | 60μA typical enables >1-year battery life in always-on sensor nodes with 200mAh coin cells. |
| Dropout Voltage | 300mV at 600mA allows operation from single-cell Li-ion (3.0V min) while sustaining full load. |
| PSRR | 75dB at 1kHz suppresses switching noise from adjacent DC-DC converters feeding mixed-signal SoCs. |
| Startup Time | 150μs enables rapid wake-from-sleep sequencing in portable devices without timing margin risk. |
| Thermal Shutdown | Triggers at +150°C with +20°C hysteresis, preventing permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
AP7366EA-36SN-7 uses the U-DFN2020-6 (2.0mm × 2.0mm, 0.65mm height) thermally enhanced package with exposed thermal pad. Pin 1 (EN) and Pin 3 (IN) are on one short edge; Pin 4 (OUT) and Pin 2 (GND) align opposite; Pin 6 (ADJ) is NC for fixed-output variants; Pin 5 (NC) is unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 3) | Input voltage supply | Accepts 2.2V–6V; requires ≥1μF MLCC decoupling placed adjacent to pin for stability. |
| GND (Pin 2) | Power ground reference | Must connect directly to low-impedance ground plane; shares thermal pad connection for heat dissipation. |
| EN (Pin 1) | Enable control input | Active-high logic interface (VIH ≥1.0V); internal 3MΩ pull-down allows default-on if left unconnected. |
| OUT (Pin 4) | Regulated output | Delivers 3.6V ±1%; requires ≥1μF ceramic capacitor at pin for transient stability and EMI reduction. |
| ADJ (Pin 6) | Feedback reference | No-connect for fixed-output variant; must remain floating-no external tie required or recommended. |
| NC (Pin 5) | No internal connection | Electrically isolated; may be left unconnected or tied to GND for mechanical reinforcement only. |
Key Features
| Feature | Design Value |
|---|---|
| Low-IQ operation | 60μA quiescent current enables ultra-low-power sleep modes without compromising startup speed. |
| Fast transient response | Stable under 100mA–500mA load steps with <20mV undershoot/overshoot, critical for burst-mode processors. |
| 1μF ceramic capacitor support | Eliminates need for large tantalum or electrolytic output caps-reducing board area and cost. |
| Integrated protection | Current limit (~1A), short-circuit clamp (~250mA), and thermal shutdown prevent field failures under fault conditions. |
| Wide input range | 2.2V–6V operation accommodates single-cell Li-ion, USB VBUS, and multi-cell alkaline inputs without pre-regulation. |
Applications
| FPGA I/O Power Rail | Portable Medical Sensor Node |
|---|---|
|
Use Scenario: Powers configurable I/O banks on Xilinx Artix-7 FPGAs in handheld diagnostic equipment. IC Role / Device Role / Timing Role: Primary 3.6V LDO supplying I/O voltage; enables hot-swap-safe configuration and level translation. Use Value: 300mV dropout allows direct use of partially discharged 3.7V Li-Po cells; 75dB PSRR prevents digital switching noise from corrupting analog sensor ADC references. |
Use Scenario: Supplies ultra-low-power ARM Cortex-M0+ MCU and BLE radio in wearable ECG patch. IC Role / Device Role / Timing Role: Always-on system regulator managing sleep/wake transitions via EN pin control. Use Value: 60μA IQ extends 200mAh CR2032 battery life beyond 18 months in periodic measurement mode; 150μs startup synchronizes cleanly with radio wake-up timer. |
| Industrial PLC Digital Input Module | Automotive Infotainment USB Hub |
|
Use Scenario: Provides isolated 3.6V logic supply for optocoupler-driven digital input conditioning circuits. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 5V system bus; immune to upstream ripple and transients. Use Value: 2.2V–6V input range tolerates brown-out conditions on 5V rail; thermal shutdown protects against sustained overcurrent during field wiring faults. |
Use Scenario: Powers USB 2.0 PHY and hub controller in automotive head unit with variable 4.5V–5.5V supply. IC Role / Device Role / Timing Role: Local point-of-load regulator ensuring clean 3.6V for high-speed data integrity. Use Value: 75dB PSRR at 1kHz rejects noise from engine-control CAN transceivers sharing same 5V domain; U-DFN2020-6 footprint minimizes routing congestion near USB connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3602E/MB | Higher dropout (500mV @ 250mA), higher IQ (2.5μA), SOT-23-5 package | Limited to ≤250mA loads; less suitable for FPGA I/O or burst-mode processors | Prefer when board space is constrained and load current remains below 250mA. |
| Torex XC6210B362MR-G | Lower IQ (1.2μA) but slower startup (500μs), no thermal shutdown, SOT-25 package | Better for ultra-long-life battery apps; lacks fault protection for industrial environments | Choose only where thermal robustness is not required and startup latency is acceptable. |
Compared with MCP1703T-3602E/MB and XC6210B362MR-G, AP7366EA-36SN-7 uniquely balances 600mA capability, 60μA IQ, 150μs startup, and full fault protection in a 2mm×2mm thermally efficient package-making it optimal for space-constrained, high-reliability portable and industrial systems.
Availability
AP7366EA-36SN-7 is available at Aetrix Electronics and suitable for FPGA power delivery, portable medical sensors, industrial PLC modules, and automotive infotainment peripherals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP7366EA-36SN-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 ICs, with design centers across Asia, Europe, and the US and manufacturing in ISO/TS 16949-certified facilities.
The AP7366EA belongs to Diodes' high-performance LDO portfolio targeting battery-powered and noise-sensitive applications, emphasizing low IQ, fast transient response, and robust protection in miniature packages.
FAQ
What is the maximum allowable input voltage for AP7366EA-36SN-7?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2.2V to 6.0V. Exceeding 6.0V risks exceeding the 6.5V absolute rating under transient conditions and may accelerate parametric drift over lifetime. Operation above 6.0V is not characterized or guaranteed per the datasheet.
Can AP7366EA-36SN-7 operate without an output capacitor?
No. A minimum 1μF ceramic capacitor is mandatory between OUT and GND for stability and transient performance. Omitting it causes oscillation and potential device failure. The datasheet explicitly states "The output capacitor is required to stabilize and improve the transient response of the LDO" and confirms stability only with ≥1μF ceramic output capacitance.
Is the ADJ pin functional in the AP7366EA-36SN-7 fixed-output variant?
No. In AP7366EA-36SN-7, the ADJ pin (Pin 6) is not connected internally and serves no function. It must be left floating-neither tied to GND nor used for feedback. This is confirmed by the Pin Descriptions table and Functional Block Diagram, which show ADJ as "No Internal Connection" for fixed-output configurations.
How does thermal performance differ between SOT25 and U-DFN2020-6 packages?
The U-DFN2020-6 package has θJA = 46.2°C/W versus 139°C/W for SOT25, enabling ~3× higher power dissipation before thermal shutdown. At 600mA with 3.6V output and 5V input, U-DFN2020-6 dissipates 840mW and rises ~39°C above ambient, while SOT25 would exceed safe junction temperature without significant copper pour.
AP7366EA-36SN-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad
- 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):
- 3.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 210mV @ 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:
- U-DFN2020-6
AP7366EA-36SN-7 FAQ
1.How can I place an order for AP7366EA-36SN-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7366EA-36SN-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-36SN-7 reliable?
The price and inventory of AP7366EA-36SN-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-36SN-7 is usually 5 days.
3.What payment methods are accepted for AP7366EA-36SN-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7366EA-36SN-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7366EA-36SN-7?
AP7366EA-36SN-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7366EA-36SN-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-36SN-7?
For technical support, including AP7366EA-36SN-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7366EA-36SN-7 requirements.
6.How does Aetrix verify that AP7366EA-36SN-7 is sourced from the original manufacturer or authorized distributors?
All AP7366EA-36SN-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-36SN-7 meets industry standards.
7.What is the process for return or replacement of AP7366EA-36SN-7?
All AP7366EA-36SN-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7366EA-36SN-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-36SN-7 part is unused and in its original packaging.
Return procedure for AP7366EA-36SN-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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