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Diodes Incorporated AP7365-18EG-13
- Part No.:
- AP7365-18EG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP7365-18EG-13.pdf
- Description:
- IC REG LIN 1.8V 600MA SOT223-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,077
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Product details
Overview
AP7365-18EG-13 from Diodes Incorporated is a fixed-output 1.8V, 600mA low-dropout linear regulator with 35μA quiescent current, 300mV dropout at full load, and integrated enable control. It operates from 2V to 6V input, delivers ±2% output accuracy over –40°C to +85°C, and stabilizes with only 1μF ceramic output capacitance. It is used in FPGA I/O power rails where fast transient response and ultra-low IQ are critical.
For engineers reviewing the AP7365-18EG-13 datasheet, AP7365-18EG-13 pinout, AP7365-18EG-13 application, or AP7365-18EG-13 equivalent, key selection criteria include dropout voltage at 600mA, PSRR at 1kHz, thermal shutdown threshold, EN logic thresholds, and SOT223-E package thermal resistance (142°C/W).
Technical Context
The AP7365-18EG-13 implements a PMOS pass transistor architecture enabling low dropout and high PSRR (65dB @ 1kHz). Its internal 0.8V bandgap reference feeds an error amplifier that regulates output via feedback from the fixed 1.8V divider network embedded in the die.
Enable functionality uses CMOS-compatible thresholds (VIH = 1.4V min, VIL = 0.4V max), and protection includes foldback current limiting (1.4A typ), short-circuit clamping (240mA), and thermal shutdown at +145°C with +15°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% over –40°C to +85°C - ensures stable core/I/O rail for low-voltage FPGAs and DSPs. |
| Max Output Current | 600mA continuous - supports moderate-power digital loads without external boost circuitry. |
| Dropout Voltage | 300mV at 600mA (VOUT ≥ 2.5V) - enables operation down to VIN = 2.1V while maintaining regulation. |
| Quiescent Current | 35μA typical - extends battery life in always-on sensor nodes and portable devices. |
| PSRR | 65dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Start-Up Time | 200μs - allows rapid power sequencing in multi-rail systems with tight timing budgets. |
| Thermal Shutdown | +145°C junction threshold with +15°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
AP7365-18EG-13 is packaged in SOT223-E (E Package), featuring a thermally enhanced tab-connected GND pin for improved heat dissipation. The 3-pin configuration minimizes board space while supporting up to 142°C/W junction-to-ambient thermal resistance under standard layout conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 3) | Input voltage supply | Accepts 2V–6V; requires ≥1μF MLCC bypass to GND close to pin for stability and noise rejection. |
| GND (Pin 1) | Ground reference and thermal pad | Connected to exposed thermal tab; must be soldered to large copper pour for thermal management. |
| OUT (Pin 2) | Regulated 1.8V output | Delivers up to 600mA; stable with ≥1μF ceramic capacitor (ESR >15mΩ) placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout with PMOS pass element | 300mV @ 600mA enables single-cell Li-ion (3.0V min) or dual-cell alkaline (2.4V min) operation. |
| Ultra-low quiescent current | 35μA typical ensures <1% battery drain in standby mode for multi-year IoT deployments. |
| Fast transient response | Stabilizes within microseconds during 10mA ↔ 600mA load steps - critical for burst-mode DSP/FPGA operation. |
| Integrated protection suite | Current limit (1.4A), short-circuit clamp (240mA), and thermal shutdown prevent field failures under fault conditions. |
| EN-compatible logic interface | VIH = 1.4V min / VIL = 0.4V max allows direct connection to 1.8V/3.3V GPIO without level-shifting. |
Applications
| Portable FPGA Power | FPGA I/O Rail Supply |
|---|---|
Use Scenario: Powering I/O banks of Xilinx Artix-7 or Intel MAX 10 FPGAs in handheld test equipment. IC Role / Device Role / Timing Role: Primary 1.8V I/O LDO with fast load-step response to support LVCMOS18 signaling integrity. Use Value: 200μs start-up and ±2% accuracy ensure deterministic power-on timing and signal margin compliance. |
Use Scenario: Providing clean 1.8V supply to memory interfaces (e.g., QSPI flash) on edge AI modules. IC Role / Device Role / Timing Role: Low-noise post-regulator decoupling LDO downstream of a buck converter. Use Value: 65dB PSRR at 1kHz attenuates switching ripple from upstream DC/DC, reducing memory read errors. |
| Battery-Powered Sensor Hub | Industrial PLC I/O Module |
Use Scenario: Regulating power for BLE SoC (e.g., nRF52840) and analog sensor front-ends in wireless condition monitors. IC Role / Device Role / Timing Role: Always-on 1.8V rail generator with ultra-low IQ to maximize 10-year coin-cell lifetime. Use Value: 35μA IQ reduces average system current by >50% versus legacy LDOs, extending operational uptime. |
Use Scenario: Supplying isolated 1.8V logic for digital input conditioning circuits in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Robust local regulator tolerant of industrial bus transients and wide ambient temperature swings. Use Value: –40°C to +85°C operation and thermal shutdown ensure reliability in uncooled enclosures near motors or drives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-1802E/TO | 300mA max output, 2.0μA IQ, SOT23-3 package - lower current, far lower IQ, no EN pin. | Suitable only for micro-power MCU cores, not FPGA I/O or sensor hubs requiring 600mA. | Select only when load current ≤300mA and IQ <5μA is mandatory; not drop-in compatible. |
| Torex XC6219B182MR-G | 600mA, 1.0μA IQ, no EN, 1.2V–5.0V adjustable only - lacks enable control and fixed 1.8V option. | Requires external resistor divider; unsuitable for space-constrained designs needing pin-strapped 1.8V. | Choose if EN functionality is unnecessary and board area permits external feedback components. |
Compared with MCP1700-1802E/TO and XC6219B182MR-G, AP7365-18EG-13 uniquely combines 600mA drive, 35μA IQ, integrated EN, fixed 1.8V output, and SOT223 thermal performance - making it optimal for FPGA I/O and industrial sensor node power where all four attributes are required simultaneously.
Availability
AP7365-18EG-13 is available at Aetrix Electronics and suitable for FPGA I/O power, battery-powered sensor hubs, industrial PLC I/O modules, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP7365-18EG-13 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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP7365 series belongs to Diodes' precision LDO portfolio, engineered specifically for low-power, fast-transient digital loads including FPGA, DSP, and microcontroller I/O rails where dropout, PSRR, and quiescent current are design-critical.
FAQ
What is the minimum input voltage required for AP7365-18EG-13 to maintain regulation at 600mA?
The device requires VIN ≥ VOUT + VDROPOUT = 1.8V + 0.3V = 2.1V to sustain 600mA output while regulated. Absolute minimum VIN is 2.0V per datasheet, but operation below 2.1V risks dropout under full load. Input must also stay within absolute max rating of 6.5V.
Can AP7365-18EG-13 operate without an external output capacitor?
No. A minimum 1μF ceramic capacitor with ESR >15mΩ is required between OUT and GND for stability. Omitting it causes oscillation and potential damage. Larger values improve transient response but do not compromise stability.
Is the EN pin internally pulled up or down?
The EN pin has no internal pull-up or pull-down. It must be actively driven to ≥1.4V for enable or ≤0.4V for disable. Leaving it floating may cause unpredictable startup behavior; tie to IN for always-on operation.
How does thermal performance differ between SOT223-E and SOT223-ER packages?
SOT223-E (used in AP7365-18EG-13) places GND on Pin 1 and the thermal tab, yielding θJA = 142°C/W. SOT223-ER swaps GND to Pin 3 and tab, resulting in higher θJA (158°C/W per Diodes' characterization) - E-package offers superior thermal efficiency for same PCB layout.
AP7365-18EG-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 600mA
- Current - Output:
- 600mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (1kHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
AP7365-18EG-13 FAQ
1.How can I place an order for AP7365-18EG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7365-18EG-13 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 AP7365-18EG-13 reliable?
The price and inventory of AP7365-18EG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7365-18EG-13 is usually 5 days.
3.What payment methods are accepted for AP7365-18EG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7365-18EG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7365-18EG-13?
AP7365-18EG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7365-18EG-13 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 AP7365-18EG-13?
For technical support, including AP7365-18EG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7365-18EG-13 requirements.
6.How does Aetrix verify that AP7365-18EG-13 is sourced from the original manufacturer or authorized distributors?
All AP7365-18EG-13 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 AP7365-18EG-13 meets industry standards.
7.What is the process for return or replacement of AP7365-18EG-13?
All AP7365-18EG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7365-18EG-13, 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 AP7365-18EG-13 part is unused and in its original packaging.
Return procedure for AP7365-18EG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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