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

Manufacturer Part Number
AP7365-18YRG-13
Manufacturer
Diodes Incorporated
Allelco Part Number
32D-AP7365-18YRG-13
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
201,910 pcs available, New & Original
Parts Description
IC REG LIN 1.8V 600MA SOT89R-3
Package
SOT-89R-3
Data sheet
AP7365-18YRG-13.pdf

Datasheets

AP7365.pdf

Environmental Information

Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 201910
  • Unit Price: $0.288
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.288 $0.29
200+ $0.115 $23.00
500+ $0.111 $55.50
1000+ $0.109 $109.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

AP7365-18YRG-13 Tech Specifications
Diodes Incorporated - AP7365-18YRG-13 technical specifications, attributes, parameters and parts with similar specifications to Diodes Incorporated - AP7365-18YRG-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-89R-3
Series -
Protection Features Over Current, Over Temperature
Package / Case TO-243AA
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

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

Manufacturer Part Number

AP7365-18YRG-13

Manufacturer

Diodes

Introduction

AP7365-18YRG-13 is a low-dropout (LDO) linear voltage regulator designed for power management, provided in a surface-mount SOT-89R-3 package.

Product Features and Performance

LDO Voltage Regulator

Positive output configuration

Fixed output voltage of 1.8V

Maximum input voltage of 6V

Maximum voltage dropout of 0.6V at 600mA load

Output current capacity of 600mA

Quiescent current of 80µA

Power Supply Rejection Ratio (PSRR) of 65dB at 1kHz

Over Current and Over Temperature protection

Product Advantages

High efficiency due to low dropout voltage

Low quiescent current enhances battery life in portable devices

High PSRR minimizes output noise and improves stability

Key Technical Parameters

Voltage Input (Max): 6V

Voltage Output (Min/Fixed): 1.8V

Voltage Dropout (Max): 0.6V @ 600mA

Current Output: 600mA

Current Quiescent (Iq): 80µA

PSRR: 65dB (1kHz)

Quality and Safety Features

Built-in Over Current and Over Temperature protection for enhanced safety and reliability

Compatibility

Surface Mount Type; compatible with SOT-89R-3 package boards

Application Areas

Mobile Phones

Portable Electronics

Wireless Modules

Battery Powered Devices

Power Management Circuits

Product Lifecycle

Status: Active

Not near discontinuation, with support and replacements readily available

Several Key Reasons to Choose This Product

Low dropout voltage improves efficiency in low voltage applications

Low quiescent current is ideal for battery-operated devices, extending battery life

High PSRR provides stable output voltage, critical for sensitive electronics

Built-in safety features ensure product reliability and longevity

Compact SOT-89R-3 package suitable for space-constrained applications

Active product status with ongoing manufacturer support and availability of replacements

Frequently Asked Questions(FAQ)

How does the AP7365-18YRG-13 compare to other linear regulators in terms of dropout voltage at 600mA output, and what design implications does this have for battery-powered systems?
The AP7365-18YRG-13 exhibits a maximum dropout voltage of 0.6V at 600mA, which is relatively efficient compared to many standard LDOs in its class. This means that when supplying 600mA to a 1.8V rail, the input must remain at least 2.4V or higher to maintain regulation. In battery-powered applications using a Li-ion cell (nominal 3.7V), this allows operation down to about 2.4V on the input, extending usable runtime by reducing early shutdown thresholds. However, in systems where the input voltage frequently dips near 2.4V under load transients, designers should verify that the regulator remains stable and does not enter dropout, as this can cause output ripple and potential brownout conditions.
What are the thermal implications of operating the AP7365-18YRG-13 at full load in a compact SOT-89R-3 package, and how should PCB layout influence thermal performance?
At 600mA output with an input-to-output differential voltage of 0.6V, power dissipation reaches up to 360mW (P = I × Vdrop). In the small SOT-89R-3 package, this results in a junction temperature rise of approximately 45°C above ambient under still-air conditions, potentially exceeding 100°C ambient in confined enclosures. Without a heatsink, thermal derating typically limits continuous operation below 500mA. Proper PCB layout enhances heat dissipation by connecting the exposed pad to a ground plane with multiple vias, improving thermal conductivity. Designers should calculate worst-case power and ensure junction temperature stays within -40°C to 85°C limits, especially in high ambient environments or prolonged high-load scenarios.
Can the AP7365-18YRG-13 be used in parallel to increase output current, and what precautions are necessary to prevent instability or current imbalance?
Parallel operation of the AP7365-18YRG-13 units is not recommended without additional balancing circuitry. Due to inherent manufacturing variations in internal resistance and reference voltages, current sharing will be uneven, potentially causing one regulator to exceed its 600mA rating while others remain underutilized. Furthermore, inter-stage feedback loops may introduce phase interactions, risking oscillations. If paralleling is unavoidable, each regulator should include series output resistors and individual output capacitors to decouple them electrically, though this approach increases BOM cost and board space. A better alternative is selecting a single higher-current regulator or using a multi-phase PMIC designed for load sharing.
How does the quiescent current of 80µA affect low-power system design, and what role does it play in battery life optimization?
With a quiescent current of just 80µA, the AP7365-18YRG-13 supports efficient operation in energy-constrained applications such as IoT sensors or portable devices. During idle periods, where load current is minimal, the total power consumption is dominated by Iq rather than load current. For example, in a system drawing only 1µA from the regulator, the total current drawn from the battery increases by 81µA due to leakage, which over time significantly impacts runtime. Therefore, enabling shutdown modes or using regulators with even lower Iq becomes critical in ultra-low-power designs, despite the AP7365’s already competitive specification.
What protection mechanisms are built into the AP7365-18YRG-13, and how do they respond during an overload condition?
The AP7365-18YRG-13 includes over-current (OCP) and over-temperature (OTP) protection. OCP triggers when output current exceeds 600mA, causing the device to enter current limiting mode, reducing output current to safe levels. This prevents damage but may disrupt sensitive loads during fault events. OTP activates when junction temperature surpasses approximately 150°C, forcing the regulator into shutdown until thermal conditions normalize. These protections enhance reliability in harsh environments but introduce latency during recovery—designers must consider whether immediate restart or delayed reset behavior aligns with their system requirements.
How does the PSRR of 65dB at 1kHz influence noise-sensitive analog circuits powered by the AP7365-18YRG-13?
A PSRR of 65dB at 1kHz corresponds to approximately a 1/2,000 reduction in input-side switching noise (e.g., 100mV ripple becomes ~50µV on the output). While adequate for many digital systems, this level may be insufficient for precision analog subsystems like ADCs or RF front ends requiring sub-10µV RMS clean rails. In such cases, additional post-regulation filtering—such as LC filters or second-stage LDOs—is necessary. The AP7365’s fixed output and lack of adjustable bandwidth control further limit flexibility, making it less ideal for high-fidelity analog applications unless paired with external noise mitigation stages.
In what scenarios would the AP7365-18YRG-13 be preferred over a switching regulator like the TPS62260 for a 1.8V, 600mA supply?
The AP7365-18YRG-13 is advantageous when simplicity, low EMI, and predictable noise characteristics outweigh efficiency concerns. Unlike switching regulators, it provides inherently quiet output with no high-frequency switching harmonics, making it suitable for mixed-signal designs where EMI compliance is strict. Additionally, its small footprint and ease of use eliminate inductor selection complexity and reduce bill of materials. However, if input voltage headroom is limited or thermal budgets are tight, a buck converter may deliver higher efficiency—potentially 85–90%—reducing heat generation and extending battery life, despite greater complexity and cost.
What input capacitance requirements must be met when using the AP7365-18YRG-13 to ensure stability, and how does capacitor choice affect transient response?
The datasheet specifies a minimum input capacitance of 1µF ceramic, preferably X7R or X5R dielectric, to maintain stability across temperature and voltage ranges. Electrolytic or tantalum capacitors alone may lead to oscillation due to ESR characteristics outside the recommended range. During load transients, adequate bulk capacitance helps absorb sudden current demands, reducing input voltage droop. However, excessive capacitance can degrade start-up behavior or interact poorly with upstream power sources. A typical design uses a 1–10µF ceramic capacitor close to the input pin, possibly supplemented by a small decoupling capacitor for high-frequency noise suppression.
How should the AP7365-18YRG-13 be handled during reflow soldering, given its Moisture Sensitivity Level (MSL) rating?
As an MSL 1 component, the AP7365-18YRG-13 is moisture-insensitive and can be stored indefinitely under normal conditions without baking prior to reflow. However, once the packaging seal is broken (e.g., during PCB assembly setup), it should be processed within 168 hours at <30°C/<60% RH to avoid potential delamination risks. Standard lead-free reflow profiles with peak temperatures around 245°C are acceptable, but excessive thermal exposure should be avoided to preserve solder joint integrity and prevent package cracking.
Can the AP7365-18YRG-13 replace the AP7310-18YRG-13 in existing designs, and what key differences should engineers evaluate?
While both share the same base product number and similar electrical characteristics, the AP7365-18YRG-13 offers improved performance in several areas: lower quiescent current (80µA vs. 100µA), slightly better PSRR, and enhanced thermal protection. It also supports a wider range of input voltages up to 6V compared to 4.5V in earlier variants. However, the AP7310-18YRG-13 may have been selected for legacy reasons including cost, availability, or compatibility with older PCB layouts. Engineers should confirm that all environmental constraints—especially maximum input voltage and operating temperature—are satisfied before substitution, and verify layout footprint compatibility since both use SOT-89R-3.
What is the significance of the TO-243AA package designation, and how does it differ from standard SOT-23 or TO-92 packages?
The TO-243AA is a micro-miniature surface-mount variant of the classic TO-226 package, functionally equivalent to SOT-89 but with a more compact outline and enhanced thermal performance due to improved die attachment and lead frame design. Compared to SOT-23, it offers superior heat sinking capabilities and higher current handling (up to 600mA), while being physically larger than TO-92 but providing better mechanical robustness and solder joint reliability. The AP7365-18YRG-13’s use of this package reflects a balance between thermal management and space efficiency in modern compact electronics.
How does the fixed 1.8V output simplify system integration, and in which applications is this voltage particularly beneficial?
The fixed 1.8V output eliminates the need for external feedback resistors, reducing component count and board area. This simplifies layout and improves consistency across production batches. The 1.8V rail is widely adopted in modern microcontrollers, FPGAs, and memory interfaces (e.g., DDR3L, SD cards), making the AP7365-18YRG-13 suitable for embedded systems, wearables, and industrial controllers. However, in flexible designs requiring voltage adaptability, a programmable regulator or adjustable LDO might offer better versatility at the cost of increased complexity.
Are there any known limitations of the AP7365-18YRG-13 regarding reverse polarity protection or input surge tolerance?
The AP7365-18YRG-13 lacks integrated reverse polarity protection. Applying a negative voltage to the input pin can permanently damage the device. Similarly, while it operates reliably within 6V absolute maximum ratings, sustained input surges beyond this threshold without clamping diodes risk catastrophic failure. Designers should incorporate series Schottky diodes or dedicated protection ICs if exposed to inductive loads, hot-plug events, or unregulated power sources, especially in automotive or outdoor applications.
How does the RoHS3 compliance status of the AP7365-18YRG-13 impact global regulatory adherence, particularly in the EU and China?
RoHS3 compliance ensures the AP7365-18YRG-13 meets updated European Union restrictions on hazardous substances, including stricter controls on phthalates and cadmium. It confirms absence of restricted materials above mandated thresholds, facilitating CE marking and market access. In China, compliance with RoHS3 supports compliance with GB/T standards and reduces barriers to entry in state-owned procurement and consumer markets. This certification reassures engineers designing products for international distribution, minimizing legal and logistical risks associated with non-compliant components.
When selecting bypass capacitors for the AP7365-18YRG-13, what factors beyond capacitance value must be considered to ensure reliable operation?
Beyond nominal capacitance (typically 1–10µF), capacitor ESR (Equivalent Series Resistance), temperature coefficient, and DC bias characteristics critically affect stability and transient response. High-ESR capacitors can destabilize the feedback loop, while ceramic capacitors exhibit significant capacitance drop under bias voltage—especially with X5R/X7R types at 4.7V. Low-ESR capacitors (e.g., MLCCs) improve transient performance but may require additional damping resistors if ringing occurs. Placement within 1mm of the regulator pins minimizes parasitic inductance and maximizes effectiveness.
What role does the base product number AP7365 play in component lifecycle management and obsolescence planning?
The AP7365 is a family identifier encompassing multiple fixed-voltage variants (e.g., 1.2V, 1.5V, 1.8V, 3.3V). Maintaining awareness of this base number enables engineers to quickly identify compatible replacements if the AP7365-18YRG-13 becomes unavailable. Diodes Incorporated typically ensures continuity across the AP7365 series, offering similar pinouts, protection features, and thermal performance. This standardization simplifies redesign efforts and inventory planning, reducing long-term risk in mature product lines where new alternatives may not match exact specifications.
How does the 6V maximum input voltage support diverse power architectures, and what design considerations arise from this constraint?
The 6V input ceiling accommodates a wide range of sources, including USB hosts (5V), regulated wall adapters (5–6V), and certain battery chemistries (two-cell LiFePO4 or alkaline AA strings). However, in systems fed by unregulated supplies (e.g., solar panels or boost converters), input voltages may exceed 6V during startup or transient events. In such cases, pre-regulators or Zener-based clamping are required to protect the AP7365-18YRG-13, adding complexity. Designers must validate worst-case input excursions to avoid violating absolute maximum ratings.
Why might a designer choose the tape and reel packaging (TR) for the AP7365-18YRG-13 in high-volume production, and what handling precautions apply?
Tape and reel packaging enables automated pick-and-place assembly, improving throughput and reducing manual handling errors in mass production. It also protects delicate leads during transport and storage, minimizing bent-pin defects. For manufacturers using surface-mount equipment, TR format integrates seamlessly with feeder systems. However, engineers must ensure proper humidity control post-opening and adhere to the 168-hour window specified by JEDEC J-STD-033 before exposure to reflow conditions, even for MSL 1 parts, to maintain reliability.

Parts with Similar Specifications

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

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

AP7365-18YRG-13 Datasheet PDF

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

Datasheets
AP7365.pdf
Environmental Information
Cylindrical Battery Holders.pdf

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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Brazil 7
Europe Germany 5
United Kingdom 4
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DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
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1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
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AP7365-18YRG-13 Image

AP7365-18YRG-13

Diodes Incorporated
32D-AP7365-18YRG-13

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