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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearAP7365-18ERG-13
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AP7365-18ERG-13 - Diodes Incorporated

Manufacturer Part Number
AP7365-18ERG-13
Manufacturer
Diodes Incorporated
Allelco Part Number
32D-AP7365-18ERG-13
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
213,020 pcs available, New & Original
Parts Description
IC REG LINEAR 1.8V 600MA SOT223R
Package
SOT-223R
Data sheet
AP7365-18ERG-13.pdf

Datasheets

AP7365.pdf

Environmental Information

Diodes Environmental Compliance Cert.pdf
RoHs Status
ROHS3 Compliant
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In stock: 213020

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Specifications

AP7365-18ERG-13 Tech Specifications
Diodes Incorporated - AP7365-18ERG-13 technical specifications, attributes, parameters and parts with similar specifications to Diodes Incorporated - AP7365-18ERG-13

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 SOT-223R
Series -
Protection Features Over Current, Over Temperature
Package / Case TO-261-4, TO-261AA
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 -
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

AP7365-18ERG-13 Image
AP7365-18ERG-13 (1)

Manufacturer Part Number

AP7365-18ERG-13

Manufacturer

diodes

Introduction

The AP7365-18ERG-13 is a high-performance, low-dropout (LDO) linear voltage regulator from diodes. It is designed to provide a stable and accurate 1.8V output voltage from an input voltage of up to 6V, with a maximum output current of 600mA. The regulator features advanced protection circuits for over-current and over-temperature conditions, ensuring reliable and safe operation in a wide range of applications.

Product Features and Performance

Output Voltage: 1.8V

Input Voltage Range: Up to 6V

Output Current: 600mA

Voltage Dropout: 0.6V @ 600mA

Quiescent Current: 80μA

Power Supply Rejection Ratio (PSRR): 65dB (1kHz)

Operating Temperature Range: -40°C to 85°C

Advanced Protection Circuits: Over-Current, Over-Temperature

Product Advantages

Highly accurate and stable output voltage

Efficient and low-dropout operation

Compact surface-mount package

Robust protection features for reliable performance

Wide operating temperature range

Key Reasons to Choose This Product

Delivers a clean and reliable 1.8V output for your power supply needs

Excellent efficiency and thermal management for optimal system performance

Comprehensive protection features ensure safe and reliable operation

Compact package and surface-mount design for easy integration into your design

Quality and Safety Features

Over-current protection

Over-temperature protection

Robust and reliable design for long-term operation

Compatibility

The AP7365-18ERG-13 is compatible with a wide range of electronic devices and systems that require a 1.8V power supply, such as microcontrollers, sensors, and communication modules.

Application Areas

Portable electronics

Wireless devices

Industrial automation

Embedded systems

Wearable technology

Product Lifecycle

The AP7365-18ERG-13 is an active product, and there are no plans for its discontinuation at this time. There may be alternative models available from diodes that offer similar features and performance. If you need more information or have specific requirements, please contact our sales team through our website.

Frequently Asked Questions(FAQ)

How does the AP7365-18ERG-13 handle thermal management under continuous 600mA load, and what are the expected junction temperature rise in a typical SOT-223R package?
The AP7365-18ERG-13 exhibits a maximum voltage dropout of 0.6V at 600mA, resulting in a power dissipation of approximately 3.6W when stepping down from a 6V input to 1.8V output. In a standard SOT-223R package with a typical thermal resistance (θJA) of 50°C/W, this leads to an estimated junction-to-ambient temperature rise of around 180°C. However, actual performance depends on PCB copper area, airflow, and ambient conditions. Without supplemental heatsinking, sustained operation near full load may require derating or thermal relief measures to prevent over-temperature shutdown.
What is the quiescent current draw of the AP7366-18ERG-13, and how might it impact battery life in low-power IoT applications?
The AP7365-18ERG-13 consumes only 80µA of quiescent current (Iq), which is critical for extending battery life in energy-constrained systems. For example, in a coin-cell-powered device operating continuously at 1.8V, this low Iq contributes minimally to overall power budget compared to dynamic loads. When combined with sleep-mode currents from downstream MCUs, the total system current can remain below 100µA during idle periods, enabling multi-year operation on a single CR2032 cell under intermittent wake-up cycles.
Can the AP7365-18ERG-13 be used safely with input voltages close to its dropout voltage, such as 2.3V, while maintaining regulation?
At an input voltage of 2.3V and output of 1.8V, the AP7365-18ERG-13 experiences a dropout condition of 0.5V, which is within its specified maximum of 0.6V at rated load. While regulation will still occur, output ripple and noise may increase slightly due to reduced headroom. Additionally, efficiency drops significantly—around 78% at this margin—and power dissipation rises to 0.3W, generating heat that must be managed. Designers should ensure sufficient thermal layout and avoid prolonged operation at the edge of dropout to maintain stability and reliability.
How does the AP7365-18ERG-13 compare to the AP7365-33ERG-13 in terms of output voltage flexibility and application suitability?
Both regulators share identical electrical characteristics except for fixed output voltage: the AP7365-18ERG-13 delivers 1.8V, while the AP7365-33ERG-13 provides 3.3V. This makes the 1.8V version more suitable for modern low-voltage microcontrollers, sensors, and RF modules operating at core logic levels, whereas the 3.3V variant supports legacy peripherals or higher-current analog stages. Choosing between them depends on system-level voltage requirements rather than regulator performance; both offer similar PSRR, Iq, and protection features.
What precautions should be taken when implementing the AP7365-18ERG-13 in compact PCB layouts with limited copper pour?
Due to its 3.6W peak power dissipation capability, the AP7365-18ERG-13 demands adequate thermal connectivity even in small form factors. On PCBs with minimal ground plane or narrow traces, ensure the SOT-223R’s exposed pad is soldered directly to a solid copper region—ideally 20x20mm—to act as a heatsink. Use multiple vias under the pad to connect to inner layers if possible. Avoid placing nearby temperature-sensitive components above the regulator. If space is extremely constrained, consider reducing output current or using a switching regulator with higher efficiency.
Is the AP7365-18ERG-13 suitable for automotive applications requiring extended temperature ranges beyond 85°C?
No, the AP7365-18ERG-13 is rated for industrial temperatures up to 85°C maximum. Automotive-grade environments often exceed this threshold due to engine bay proximity or high ambient cabin heat. For automotive use cases, designers must select components with AEC-Q100 qualification and wider temperature specs (e.g., -40°C to +125°C). The AP7365 series does not meet these requirements, so alternative solutions from certified vendors should be evaluated instead.
What role does PSRR play in the AP7365-18ERG-13’s performance, particularly for noise-sensitive analog circuits?
With a PSRR of 65dB at 1kHz, the AP7365-18ERG-13 attenuates power supply noise by a factor of approximately 1,778 at low frequencies. This helps suppress ripple from upstream switching sources, but it diminishes at higher frequencies. For precision analog subsystems—such as ADCs or reference buffers—additional filtering (LC networks or post-regulation) may still be necessary. The PSRR specification assumes a clean input rail; poor bypassing or long input traces can degrade effective performance well below datasheet values.
How does the overcurrent protection mechanism work in the AP7365-18ERG-13, and what happens during a short-circuit event?
The AP7365-18ERG-13 includes built-in overcurrent protection that limits output current to approximately 600mA to 900mA depending on thermal conditions. During a short-circuit, the regulator enters current-limit mode, effectively reducing duty cycle to manage power dissipation. This prevents catastrophic failure but results in reduced output voltage and increased internal heating. If sustained without cooling, the device will activate over-temperature protection and shut down until junction temperature drops below safe thresholds—typically several seconds after fault removal.
Can multiple AP7365-18ERG-13 regulators be paralleled to achieve higher output currents?
No, paralleling linear regulators like the AP7365-18ERG-13 is not recommended due to mismatch in Vf and Iq across devices. One regulator may carry disproportionate current, leading to uneven heating and potential thermal runaway. Instead, for >600mA requirements, either use a single higher-current LDO or switch to a buck converter architecture. If additional margin is needed, select a different part from Diodes Incorporated’s family with higher current rating, such as the AP7331, which supports up to 1A.
What input capacitance requirements apply to the AP7365-18ERG-13, and why is it important?
The AP7365-18ERG-13 requires an input capacitor of at least 1µF ceramic type with X7R or X5R dielectric. This ensures stable operation under transient loads and compensates for lead inductance in compact layouts. Without proper input filtering, oscillations or instability can occur, especially when driven by noisy sources like unregulated wall adapters or battery packs with high ESR. Place the capacitor as close as possible to the IN pin to minimize loop inductance and preserve control loop integrity.
Does the AP7365-18ERG-13 support enable/disable functionality via an external control signal?
No, the AP7365-18ERG-13 lacks an active enable pin. Power sequencing must be controlled by managing the input voltage line. To implement software-controlled shutdown, place a MOSFET or relay between the input source and the regulator’s IN pin. Alternatively, use a separate enable-capable LDO or PMIC if precise power gating is required. This limitation affects design flexibility in systems needing dynamic power management but simplifies circuit topology otherwise.
How does the Moisture Sensitivity Level (MSL) of 1 for the AP7365-18ERG-13 affect handling during assembly?
With an MSL of 1, the AP7365-18ERG-13 is classified as non-hygroscopic and can be stored indefinitely at room conditions without baking prior to reflow soldering. This eliminates special handling procedures during PCB fabrication, reducing cost and complexity in high-volume manufacturing. As long as standard IPC/JEDEC guidelines are followed for storage and handling, no additional drying steps are required before wave or reflow soldering.
What is the significance of the “R” suffix in the AP7365-18ERG-13 model number, and how does it differ from other package variants?
The “R” in the AP7365-18ERG-13 denotes the SOT-223R package variant, which features gull-wing leads instead of straight leads found in the standard SOT-223. This improves solder joint reliability under mechanical stress and enhances automated pick-and-place assembly compatibility. All other electrical characteristics remain identical across variants; the choice of R-type primarily impacts PCB footprint alignment and process yield in mass production environments.
In what scenarios would choosing the AP7365-18ERG-13 over a switching regulator be justified despite lower efficiency?
The AP7365-18ERG-13 is preferred when simplicity, low EMI, and quiet operation are paramount—such as in audio amplifiers, RF front-ends, or precision sensor nodes. Switching regulators introduce high-frequency noise that can interfere with sensitive analog signals, whereas linear regulators provide inherently clean outputs. If the input-output differential is modest (≤3V) and total system power budget allows for higher losses, the AP7365 offers superior transient response and easier EMI compliance at the expense of efficiency.
What are the implications of the RoHS3 compliance status for the AP7365-18ERG-13 in global supply chain integration?
RoHS3 compliance confirms the AP7365-18ERG-13 meets EU Directive 2015/863 restrictions on four additional phthalates (DEHP, BBP, DBP, DIBP) beyond earlier directives. This ensures full compatibility with European Union regulations and facilitates market access across EEA countries. It also aligns with global OEM sustainability policies, reducing risk of component rejection or redesign during certification audits for consumer electronics or industrial equipment destined for regulated markets.

Parts with Similar Specifications

The three parts on the right have similar specifications to Diodes Incorporated AP7365-18ERG-13

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

AP7365-18ERG-13 Datasheet PDF

Download AP7365-18ERG-13 pdf datasheets and Diodes Incorporated documentation for AP7365-18ERG-13 - Diodes Incorporated.

Datasheets
AP7365.pdf
Environmental Information
Diodes Environmental Compliance Cert.pdf

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Customer Reviews

Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    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.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    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***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

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

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AP7365-18ERG-13 Image

AP7365-18ERG-13

Diodes Incorporated
32D-AP7365-18ERG-13

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