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Diodes Incorporated AP7366-36W5-7
- Part No.:
- AP7366-36W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7366-36W5-7.pdf
- Description:
- LDO CMOS HICURR SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:2,324
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Product details
Overview
AP7366-36W5-7 from Diodes Incorporated is a fixed-output 3.6V, 600mA 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-limit protection-designed for power management in battery-powered portable electronics and FPGA I/O rails.
For engineers reviewing the AP7366-36W5-7 datasheet, AP7366-36W5-7 pinout, AP7366-36W5-7 application, or AP7366-36W5-7 equivalent, key selection criteria include output voltage accuracy (±1% for 3.6V), fast 150μs startup time, stability with 1μF ceramic output capacitor, and compatibility with input voltages from 2.2V to 6V in space-constrained SOT25 layouts.
Technical Context
The AP7366-36W5-7 implements a PMOS pass transistor architecture enabling ultra-low quiescent current and fast transient response. Its internal 0.8V bandgap reference and error amplifier regulate output with ±1% accuracy across -40°C to +85°C ambient temperature.
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 3.6V ±1% at 10mA load ensures stable core/I/O rail for 3.3V–3.6V logic interfaces |
| Max Output Current | 600mA continuous supports moderate-power digital subsystems without external heatsinking |
| Quiescent Current | 60μA typical enables >1-year battery life in always-on sensor nodes powered by coin cells |
| Dropout Voltage | 300mV at 600mA allows operation from single-cell Li-ion (3.0V min) while maintaining regulation |
| PSRR | 75dB at 1kHz suppresses switching noise from adjacent DC/DC converters in mixed-signal PCBs |
| Start-Up Time | 150μs enables rapid wake-up from deep-sleep modes in portable devices |
| Input Voltage Range | 2.2V to 6V accommodates wide-input sources including USB, boost regulators, and multi-cell batteries |
Pinout & Package
SOT25 (5-pin, 2.8mm × 2.9mm × 1.3mm) with exposed thermal pad not connected internally; requires minimum 1μF ceramic input/output capacitors placed adjacent to IN/GND and OUT/GND pins respectively.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Power Input | Bypassed to GND with ≥1μF MLCC; must be routed with low-inductance trace to minimize noise coupling |
| 2 - GND | Ground Reference | Primary return path for input/output currents and regulator control circuitry; connects to PCB ground plane |
| 3 - EN | Enable Control | Active-high logic input; tied to IN for always-on operation or driven by MCU GPIO for dynamic power gating |
| 4 - NC | No Connection | Unbonded die pad; must remain floating-no PCB trace or copper pour connection permitted |
| 5 - OUT | Regulated Output | Delivers 3.6V to load; requires local 1μF ceramic capacitor to GND for stability and transient response |
Key Features
| Feature | Design Value |
|---|---|
| Low IQ Operation | 60μA quiescent current extends battery runtime in standby without compromising regulation accuracy |
| Fast Transient Response | Load step recovery within 200μs prevents brownout during CPU burst activity in portable SoC designs |
| Thermal Protection | +150°C shutdown with +20°C hysteresis prevents permanent damage during sustained overload or poor PCB thermal design |
| Small-Capacitor Stability | Stable with 1μF ceramic output capacitor reduces BOM count and board area vs. legacy LDOs requiring ≥10μF |
| High PSRR | 75dB rejection at 1kHz isolates sensitive analog circuits from digital supply noise on shared rails |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
Use Scenario: Continuous ECG signal acquisition powered by CR2032 coin cell with 10-year target lifetime. IC Role / Device Role / Timing Role: Primary 3.6V power rail for ultra-low-power MCU and analog front-end ADC. Use Value: 60μA IQ and 300mV dropout enable full regulation down to 3.0V battery voltage, maximizing usable energy. | Use Scenario: Wireless vibration sensor deployed in factory machinery with no maintenance access. IC Role / Device Role / Timing Role: Regulated 3.6V supply for MEMS accelerometer, BLE radio, and flash memory. Use Value: 150μs startup synchronizes power delivery with wake-up interrupt, eliminating boot delay in event-triggered sampling. |
| FPGA I/O Bank Supply | USB-Powered Test Fixture |
Use Scenario: Compact FPGA development board powered via USB 5V with multiple I/O banks requiring clean 3.6V. IC Role / Device Role / Timing Role: Local point-of-load regulator for FPGA I/O voltage domain with fast load transient immunity. Use Value: 75dB PSRR suppresses USB switcher ripple, preventing I/O timing violations and data corruption. | Use Scenario: Portable benchtop test adapter drawing power from USB host port for field diagnostics. IC Role / Device Role / Timing Role: Stable 3.6V source for DUT interface logic and level-shifting circuitry. Use Value: SOT25 footprint and 1μF capacitor support minimal PCB real estate while meeting USB power budget constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3602E/TO | 250mA max output, 1.6μA IQ, TO-92 package; lacks EN pin and thermal shutdown | Suitable only for ultra-low-current (<100mA), non-EN-controlled applications with ample thermal margin | Select only if load current <250mA and system-level thermal monitoring replaces IC-level protection |
| Torex XC6210B362MR-G | 400mA max output, 1.0μA IQ, SOT-25; includes EN but no short-circuit protection | Lower IQ benefits long-term battery life, but missing short-circuit protection increases risk in uncontrolled load environments | Prefer for battery longevity in low-risk loads; avoid where output may be shorted during assembly or field use |
Compared with MCP1700-3602E/TO and XC6210B362MR-G, AP7366-36W5-7 delivers higher current (600mA), integrated EN control, and dual fault protection (thermal + short-circuit), making it suitable for robust, medium-power portable systems where reliability and feature completeness outweigh minimal IQ savings.
Availability
AP7366-36W5-7 is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, FPGA I/O power, and USB-powered test fixtures requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for AP7366-36W5-7 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 manufacturing certified to IATF 16949 and product compliance to RoHS, REACH, and halogen-free standards.
The AP7366 series belongs to Diodes' high-efficiency LDO portfolio, engineered specifically for battery-powered and space-constrained applications demanding low IQ, fast transient response, and comprehensive fault protection in compact packages.
FAQ
What is the minimum input voltage required for AP7366-36W5-7 to maintain regulation at 600mA load?
The minimum input voltage is calculated as VOUT + VDROPOUT = 3.6V + 0.3V = 3.9V. Per datasheet Table 4, dropout is 300mV at 600mA for 3.6V output, so VIN must be ≥3.9V to sustain full 600mA output while maintaining regulation. Below this, output collapses proportionally.
Can AP7366-36W5-7 operate without an output capacitor?
No. The device requires a minimum 1μF ceramic output capacitor between OUT and GND for stability and transient response. Omitting it causes oscillation and potential damage. The datasheet explicitly states "output capacitor is required" and specifies ESR range (10–300mΩ) and placement proximity to OUT/GND pins.
Is the NC pin on AP7366-36W5-7 electrically isolated or should it be grounded?
The NC (pin 4) is unconnected internally-no bond wire or die connection exists. It must remain electrically floating: no PCB trace, copper pour, or solder mask opening should contact it. Grounding or routing to any net violates the recommended layout and risks parasitic coupling or latch-up.
Does AP7366-36W5-7 support reverse-voltage protection on the input or output pins?
No. The AP7366-36W5-7 has no built-in reverse-voltage protection. Applying reverse polarity to IN or OUT can cause irreversible damage. External protection-such as a series Schottky diode on IN or a back-to-back MOSFET circuit-is required in systems where reverse connection is possible.
AP7366-36W5-7 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):
- 3.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.16V @ 300mA
- Current - Output:
- 600mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 55dB (1kHz ~ 10kHz)
- Control Features:
- Current Limit, 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
AP7366-36W5-7 FAQ
1.How can I place an order for AP7366-36W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7366-36W5-7 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 AP7366-36W5-7 reliable?
The price and inventory of AP7366-36W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7366-36W5-7 is usually 5 days.
3.What payment methods are accepted for AP7366-36W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7366-36W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7366-36W5-7?
AP7366-36W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7366-36W5-7 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 AP7366-36W5-7?
For technical support, including AP7366-36W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7366-36W5-7 requirements.
6.How does Aetrix verify that AP7366-36W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7366-36W5-7 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 AP7366-36W5-7 meets industry standards.
7.What is the process for return or replacement of AP7366-36W5-7?
All AP7366-36W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7366-36W5-7, 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 AP7366-36W5-7 part is unused and in its original packaging.
Return procedure for AP7366-36W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7366-36W5-7 Tags
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