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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearAP7365-18SNG-7
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AP7365-18SNG-7 - Diodes Incorporated

Manufacturer Part Number
AP7365-18SNG-7
Manufacturer
Diodes Incorporated
Allelco Part Number
32D-AP7365-18SNG-7
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
304,030 pcs available, New & Original
Parts Description
IC REG LIN 1.8V 600MA 6DFN2020
Package
U-DFN2020-6
Data sheet
AP7365-18SNG-7.pdf

Environmental Information

Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 304030
  • Unit Price: $0.252
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.252 $0.25
200+ $0.101 $20.20
500+ $0.097 $48.50
1000+ $0.096 $96.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

AP7365-18SNG-7 Tech Specifications
Diodes Incorporated - AP7365-18SNG-7 technical specifications, attributes, parameters and parts with similar specifications to Diodes Incorporated - AP7365-18SNG-7

Product Attribute Attribute Value
Manufacturer Diodes Incorporated
Voltage Dropout (Max) 0.6V @ 600mA
Voltage - Output (Min/Fixed) 1.8V
Voltage - Output (Max) -
Voltage - Input (Max) 6V
Supplier Device Package U-DFN2020-6
Series -
Protection Features Over Current, Over Temperature
Package / Case 6-UDFN Exposed Pad
Package Tape & Reel (TR)
Product Attribute Attribute Value
PSRR 65dB (1kHz)
Output Type Fixed
Output Configuration Positive
Operating Temperature -40°C ~ 85°C
Number of Regulators 1
Mounting Type Surface Mount
Current - Quiescent (Iq) 80 µA
Current - Output 600mA
Control Features Enable
Base Product Number AP7365

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

AP7365-18SNG-7 Image
AP7365-18SNG-7 (1)

Manufacturer Part Number

AP7365-18SNG-7

Manufacturer

diodes

Introduction

The AP7365-18SNG-7 is a high-performance, low dropout (LDO) linear voltage regulator from diodes. It provides a fixed 1.8V output voltage with a maximum current output of 600mA and a low quiescent current of 80uA. This regulator offers excellent line and load regulation, as well as high power supply rejection ratio (PSRR) for clean, stable power delivery.

Product Features and Performance

Fixed 1.8V output voltage

Maximum output current of 600mA

Low quiescent current of 80uA

Excellent line and load regulation

High PSRR of 65dB at 1kHz

Thermal shutdown and overcurrent protection

Product Advantages

Compact 6-pin UDFN package with exposed thermal pad for efficient heat dissipation

Wide operating temperature range of -40°C to 85°C

Enable control feature for power management

RoHS compliant and halogen-free

Key Reasons to Choose This Product

Robust performance and reliability for critical power supply applications

Small footprint and thermal management capabilities for space-constrained designs

Low quiescent current for extended battery life in portable devices

Comprehensive protection features for enhanced system safety

Quality and Safety Features

Overcurrent and thermal shutdown protection

RoHS compliance and halogen-free construction for enhanced safety and reliability

Compatibility

This LDO regulator is suitable for a wide range of applications, including:

Portable electronics

Wireless communication devices

Industrial control systems

Automotive electronics

Application Areas

Power management for microprocessors, MCUs, and other digital ICs

Voltage regulation for analog circuits and sensor interfaces

Backup power supply for critical systems

Product Lifecycle

The AP7365-18SNG-7 is an active product, and our sales team continues to support this model. There are no direct equivalent or alternative models available at this time. For the latest product information or to inquire about availability, please contact our website's sales team.

Frequently Asked Questions(FAQ)

What are the key thermal and electrical performance trade-offs when selecting the AP7365-18SNG-7 for a 600mA linear voltage regulation application, particularly in relation to input-output differential and dropout behavior?
The AP7365-18SNG-7 delivers a fixed 1.8V output at up to 600mA with a maximum dropout voltage of 0.6V at full load, meaning the input must remain at least 2.4V to maintain regulation. This relatively high dropout implies that for every watt of power dissipated (e.g., (6V - 1.8V) × 0.6A = 2.52W), the device generates significant heat unless properly heatsinked or cooled via PCB copper area. Engineers must evaluate whether switching to a low-dropout (LDO) with lower dropout or adopting a switch-mode regulator is more appropriate in space-constrained or thermally limited designs.
How does the quiescent current and PSRR performance of the AP7366-18SNG-7 compare to other LDOs in the same package, and what implications does this have for battery-powered applications?
With a quiescent current (Iq) of only 80 µA and a PSRR of 65dB at 1kHz, the AP7365-18SNG-7 is well-suited for low-power systems where supply noise must be minimized. Compared to older-generation LDOs with Iq values exceeding 100 µA or PSRR below 50dB, this device offers improved efficiency and cleaner output in analog or precision circuits. In battery-operated devices such as wearables or IoT sensors, the reduced Iq extends battery life by minimizing leakage current when the regulator is active but lightly loaded.
Can the AP7365-18SNG-7 safely operate under sustained overcurrent conditions, and how does its protection architecture influence system-level reliability?
Yes, the AP7365-18SNG-7 includes integrated overcurrent and overtemperature protection. During an overcurrent event, it limits output current to prevent damage, though prolonged operation near or above the 600mA rating may trigger thermal shutdown due to junction temperature rising above 150°C. While this protects the IC, it may also disrupt downstream circuitry. Designers should ensure adequate thermal management and consider derating current usage in harsh environments to avoid unintended shutdowns and improve long-term reliability.
What layout considerations are critical when implementing the AP7365-18SNG-7 in a compact U-DFN2020-6 package, especially regarding ground plane design and thermal dissipation?
Due to the small footprint (2mm x 2mm) and exposed pad on the bottom, the AP7365-18SNG-7 relies heavily on the PCB’s thermal pad for heat dissipation. A solid ground plane connected directly to the exposed pad improves thermal conductivity and stabilizes operation at higher loads. Additionally, minimizing trace inductance between input capacitors and the VIN pin reduces noise coupling and improves transient response. Proper solder joint inspection is essential due to the tiny pads and risk of tombstoning during assembly.
How does the AP7365-18SNG-7 respond to rapid changes in load current compared to other regulators in the Diodes Incorporated AP7365 series, and what capacitor requirements are necessary to ensure stability?
The AP7365-18SNG-7 exhibits good transient response due to internal compensation, but stability depends on proper output capacitance selection. It requires a minimum effective series resistance (ESR) range typically between 1 mΩ and 10 Ω, which standard ceramic capacitors (MLCCs) often fail to meet. Therefore, engineers should use a hybrid approach—such as placing a small series resistor (e.g., 10 Ω) in series with a low-ESR MLCC—to satisfy the ESR requirement and prevent oscillation during fast load steps.
Is the AP7365-18SNG-7 suitable for automotive or industrial applications requiring extended temperature ranges beyond its specified –40°C to 85°C?
No, the AP7365-18SNG-7 is rated only up to 85°C ambient temperature. For automotive-grade reliability (typically –40°C to 125°C), a component with a broader operating temperature range and qualification to AEC-Q100 standards would be required. Using this part outside the specified range risks degraded performance, increased failure rates, or functional loss in extreme environments such as engine control modules or outdoor sensor nodes.
What are the benefits of using the AP7365-18SNG-7 over a discrete solution when designing a single-output 1.8V rail in a space-constrained PCB?
Compared to discrete LDO implementations using pass transistors and op-amp feedback, the AP7365-18SNG-7 integrates bias current sources, feedback resistors, protection circuits, and thermal management into a compact 6-pin package. This reduces component count, simplifies layout, lowers BOM cost, and improves consistency across production batches. For designs targeting high-volume consumer electronics, the integration advantage outweighs any marginal gains from custom solutions.
How does the enable pin functionality of the AP7365-18SNG-7 impact power sequencing in multi-voltage systems, and what precautions should be taken during startup and shutdown?
The active-high enable pin allows external control of the regulator’s state, enabling precise power sequencing in systems with multiple rails. However, applying power to the EN pin without ensuring stable VIN can cause undefined behavior. Similarly, floating the EN pin may lead to unintentional turn-on due to leakage currents. Designers should ensure EN is driven through a pull-up or pull-down resistor and only asserted after VIN reaches valid levels, typically above the UVLO threshold (~1.5V).
What is the significance of the Moisture Sensitivity Level (MSL) rating of 1 for the AP7365-18SNG-7, and how does it affect manufacturing handling procedures?
An MSL rating of 1 indicates that the AP7365-18SNG-7 is not sensitive to moisture and can be stored indefinitely under normal conditions without baking prior to reflow soldering. This simplifies inventory management and reduces manufacturing overhead in high-volume assembly lines, making it ideal for automated pick-and-place processes and tape-and-reel packaging logistics typical in surface-mount production.
In what scenarios might the AP7365-18SNG-7 be less efficient than a switching regulator, and how should designers evaluate the trade-off between size, efficiency, and cost?
The AP7365-18SNG-7 suffers from lower efficiency in applications with large input-to-output voltage differentials or high output currents, as excess power is dissipated as heat. For example, converting 3.7V (Li-ion) to 1.8V at 600mA results in approximately 35% efficiency. In such cases, a buck converter could achieve 85–90% efficiency. Designers must weigh this against the added complexity, cost, and EMI concerns of switching regulators. If space is tight and thermal budget is acceptable, the LDO remains advantageous for simplicity and low noise.
How does the AP7365-18SNG-7 compare to the AP7361 or AP7331 families in terms of output voltage options and package compatibility, especially when migrating designs?
Unlike the AP7361 series, which offers adjustable output voltages, the AP7365-18SNG-7 provides only fixed 1.8V output, limiting flexibility for voltage scaling. However, it shares the same U-DFN2020-6 footprint, allowing drop-in replacement in existing layouts. The AP7331 uses a different package (SOT-23-5) and has lower current capability (300mA). Thus, while pin-compatible in some cases, current and thermal performance differ significantly—engineers must verify load requirements before migration.
What precautions should be taken when storing or transporting tape-and-reel packaged AP7365-18SNG-7 components to prevent electrostatic discharge (ESD) damage?
Although the device is not inherently ESD-sensitive like some analog ICs, all semiconductor components benefit from standard ESD handling practices. Components should be stored in conductive antistatic bags or trays, handled with grounded wrist straps, and kept away from strong electromagnetic fields. Despite lacking explicit HBM classification in public datasheets, following JEDEC JESD625 guidelines minimizes risk during automated assembly and manual processing.
Can the AP7365-18SNG-7 operate reliably with no-load or very light loads, and how does its dropout behavior change under these conditions?
Yes, the AP7365-18SNG-7 maintains regulation down to zero load, with dropout voltage decreasing as output current drops. At light loads (e.g., 10 mA), the effective dropout may fall below 200 mV, improving efficiency in standby modes. This makes it suitable for always-on subsystems where the output is occasionally disconnected but must remain ready for instant activation, such as in wake-up circuits or low-power microcontrollers.
What role does the internal reference voltage play in the accuracy of the AP7365-18SNG-7, and how does tolerance affect real-world voltage delivery?
The fixed 1.8V output assumes a tightly controlled internal bandgap reference with typical accuracy of ±2%. In practice, this means actual output may vary between 1.764V and 1.836V under nominal conditions. While sufficient for most digital logic rails (e.g., MCU cores), precision analog circuits may require post-regulation trimming or calibration. Designers should account for this variance when interfacing with sensors or ADCs sensitive to absolute voltage levels.
How does the absence of adjustable output in the AP7365-18SNG-7 influence system design flexibility when multiple voltage rails are needed?
Because the AP7365-18SNG-7 delivers only a fixed 1.8V output, each distinct voltage level in a system requires a separate regulator or voltage-setting mechanism. This increases component count and board space compared to adjustable regulators or multi-output PMICs. In complex SoC-based designs, integrating multiple AP7365 variants may become impractical, prompting consideration of alternative architectures such as digital LDOs or switch-mode solutions with multiple outputs.
What are the implications of the AP7365-18SNG-7 being RoHS3 compliant and REACH unaffected for global market distribution and supply chain compliance?
RoHS3 compliance ensures the absence of restricted substances such as lead, mercury, cadmium, and certain phthalates, aligning with regulations in the EU and China. Being REACH unaffected means it contains no SVHCs (Substances of Very High Concern) above the 0.1% threshold, simplifying export documentation and reducing audit burdens. These attributes facilitate certification in regulated markets and reduce legal exposure for manufacturers distributing products containing the AP7365-18SNG-7.
How does the PSRR of 65dB at 1kHz benefit noise-sensitive applications using the AP7365-18SNG-7, and what limitations exist at higher frequencies?
A PSRR of 65dB at 1kHz attenuates input ripple by a factor of ~1,778 (20×log₁₀(10^(65/20))), effectively suppressing switching noise from nearby DC-DC converters or power supplies. This is beneficial for analog front-ends, RF sections, or precision ADC references. However, PSRR degrades at higher frequencies—often falling to 30–40dB above 100kHz—so additional filtering stages may still be required for clean signals in mixed-signal systems.
What testing methodology should be used to validate the AP7365-18SNG-7’s performance under worst-case conditions during prototype validation?
To fully characterize the AP7365-18SNG-7, engineers should perform corner testing across temperature extremes (–40°C and 85°C), measure dropout voltage at maximum load (600mA), verify enable timing margins, and simulate load transients (e.g., 10mA to 600mA in 1µs). Thermal imaging should confirm junction temperatures stay within safe limits during continuous operation. Additionally, long-duration soak tests help identify early-life failures related to packaging stress or solder integrity.

Parts with Similar Specifications

The three parts on the right have similar specifications to Diodes Incorporated AP7365-18SNG-7

Product Attribute AP7365-15SNG-7 AP7365-18WG-7 AP7365-20SNG-7 AP7365-18ERG-13
Part Number AP7365-15SNG-7 AP7365-18WG-7 AP7365-20SNG-7 AP7365-18ERG-13
Manufacturer Diodes Incorporated Diodes Incorporated Diodes Incorporated Diodes Incorporated
Base Product Number - DAC34H84 MAX500 ADS62P42
Voltage - Output (Min/Fixed) - - - -
Output Configuration - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Current - Output - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Output (Max) - - - -
Control Features - - - -
Current - Quiescent (Iq) - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Mounting Type - Surface Mount Through Hole Surface Mount
PSRR - - - -
Voltage - Input (Max) - - - -
Protection Features - - - -
Number of Regulators - - - -
Series - - - -
Voltage Dropout (Max) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Output Type - Current - Unbuffered Voltage - Buffered -

AP7365-18SNG-7 Datasheet PDF

Download AP7365-18SNG-7 pdf datasheets and Diodes Incorporated documentation for AP7365-18SNG-7 - Diodes Incorporated.

Datasheets
Cylindrical Battery Holders.pdf
Environmental Information
Cylindrical Battery Holders.pdf

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Evaluation: 10 Articles

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    Sep 22, 2026

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    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

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  • Circ***FixerTom
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    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
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    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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AP7365-18SNG-7 Image

AP7365-18SNG-7

Diodes Incorporated
32D-AP7365-18SNG-7

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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