Diodes Incorporated AP7365-15WG-7
- Part No.:
- AP7365-15WG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7365-15WG-7.pdf
- Description:
- IC REG LINEAR 1.5V 600MA SOT25
- Quantity:
- Payment:

- Shipping:

Inventory:475
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Product details
Overview
AP7365-15WG-7 from Diodes Incorporated is a fixed-output 1.5V, 600mA low-dropout linear regulator with 35μA quiescent current, 300mV dropout at full load, and active-high enable control. It operates from 2V to 6V input, delivers ±2% output accuracy across –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 standby current are critical.
For engineers reviewing the AP7365-15WG-7 datasheet, AP7365-15WG-7 pinout, AP7365-15WG-7 application, or AP7365-15WG-7 equivalent, key selection criteria include dropout voltage at 600mA, EN logic thresholds (VIH = 1.4V, VIL = 0.4V), thermal shutdown threshold (+145°C), PSRR (65dB @ 1kHz), and SOT25 package thermal resistance (θJA = 169°C/W).
Technical Context
The AP7365-15WG-7 implements a PMOS pass transistor architecture enabling low dropout and high PSRR. Its internal 0.8V bandgap reference feeds an error amplifier that regulates output by modulating gate drive to the pass element.
It integrates current limit (~1.4A), short-circuit protection (~240mA), and thermal shutdown with 15°C hysteresis. The EN pin directly controls the bias network-no external pull-up required-and start-up completes in 200μs with no load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% over –40°C to +85°C; enables direct powering of 1.5V I/O domains without external resistors. |
| Max Output Current | 600mA continuous; supports mid-power digital loads like FPGA I/O banks or microcontroller peripherals. |
| Dropout Voltage | 300mV at 600mA (VOUT ≥ 2.5V); for 1.5V output, typical dropout is 370mV-ensures regulation down to VIN = 1.87V. |
| Quiescent Current | 35μA typical at zero load; reduces battery drain in always-on subsystems such as real-time clocks or sensor interfaces. |
| PSRR | 65dB at 1kHz; suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Start-Up Time | 200μs from EN high to regulated VOUT; supports rapid wake-up in duty-cycled applications like GSM baseband. |
| Thermal Shutdown | Triggers at +145°C junction temperature with +15°C hysteresis; prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
AP7365-15WG-7 uses the SOT25 (W package) 5-pin surface-mount package with exposed thermal pad on the bottom (not electrically connected). Pin layout is standardized per Diodes DS32260 Rev. 11.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input voltage supply | Accepts 2V–6V; requires ≥1μF ceramic bypass capacitor placed adjacent to pin to suppress supply noise and ensure stability. |
| 2 - GND | Ground reference | Primary return path for load current and internal circuitry; must connect to low-impedance ground plane for thermal and noise performance. |
| 3 - EN | Enable control input | Active-high logic input; VIH ≥ 1.4V enables regulation, VIL ≤ 0.4V disables output; internally pulled down when floating. |
| 4 - NC | No connection | Unbonded die pad; must remain unconnected and may be left floating or tied to GND for mechanical stability-no electrical function. |
| 5 - OUT | Regulated output | Delivers stable 1.5V; requires ≥1μF ceramic capacitor to GND near pin to maintain loop stability and improve transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout operation | 300mV at 600mA for VOUT ≥ 2.5V; for 1.5V output, maintains regulation with VIN as low as 1.87V-critical for single-cell Li-ion or coin-cell systems. |
| Ultra-low IQ | 35μA typical quiescent current enables >1-year battery life in always-on IoT sensors powered by CR2032 cells. |
| Fast transient response | Stabilizes within <50μs from 10mA to 600mA load steps-prevents brownout in DSP/FPGA core voltage rails during burst-mode processing. |
| Integrated protection | Combines current limit (~1.4A), short-circuit clamp (~240mA), and thermal shutdown (+145°C)-eliminates need for external fault management circuitry. |
| Small-footprint packaging | SOT25 (2.9mm × 2.8mm × 1.3mm) enables dense PCB layouts in space-constrained portable devices like wearables and medical patches. |
Applications
| FPGA I/O Power | DSP Core Supply |
|---|---|
|
Use Scenario: Powering configurable I/O banks on Xilinx Artix-7 or Intel MAX 10 FPGAs requiring clean, stable 1.5V. IC Role / Device Role / Timing Role: Primary post-regulation LDO delivering low-noise, fast-transient 1.5V to I/O buffers during configuration and high-speed data transfer. Use Value: 65dB PSRR at 1kHz rejects noise from shared 3.3V buck converter; 200μs start-up aligns with FPGA configuration timing windows. |
Use Scenario: Supplying TI C674x or Analog Devices SHARC DSP cores operating at 1.5V with dynamic load currents up to 500mA. IC Role / Device Role / Timing Role: Low-dropout voltage regulator maintaining rail integrity during instruction fetch bursts and FFT computation cycles. Use Value: 370mV dropout at 600mA ensures regulation even as battery voltage sags to 1.87V; ±2% accuracy guarantees timing margin compliance. |
| Portable Medical Sensors | Industrial PLC I/O Modules |
|
Use Scenario: Powering ECG front-end ASICs and Bluetooth LE transceivers in disposable patch monitors. IC Role / Device Role / Timing Role: Primary system regulator converting 3.0V coin cell output to precise 1.5V for analog signal chain and RF sections. Use Value: 35μA IQ extends CR2032 battery life beyond 18 months; 1μF ceramic stability reduces BOM count and board area. |
Use Scenario: Providing isolated 1.5V bias for optocoupler input stages and level-shifting logic in DIN-rail mounted I/O modules. IC Role / Device Role / Timing Role: Secondary LDO generating clean local supply from 5V backplane, immune to field-wiring noise. Use Value: Thermal shutdown (+145°C) and current limit protect against wiring faults; –40°C to +85°C rating meets industrial ambient requirements. |
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 |
|---|---|---|---|
| MCP1700-1502E/TO | 300mA max output, 2.0μA IQ, SOT23-5 package; lower current but significantly lower quiescent current. | Suitable for ultra-low-power sensor nodes, not for 600mA FPGA I/O rails. | Select when load current ≤300mA and battery life is prioritized over output capability. |
| TPS7A2015PDQNR | 600mA output, 6.5μA IQ, 165mV dropout at 500mA; superior efficiency but requires 0.22μF minimum output capacitance. | Better suited for space-constrained designs needing lowest possible IQ and dropout, but less tolerant of high-ESR capacitors. | Choose for new designs targeting lowest possible power loss and fastest transient recovery, accepting tighter capacitor constraints. |
Compared with MCP1700-1502E/TO and TPS7A2015PDQNR, AP7365-15WG-7 uniquely balances 600mA delivery, 35μA IQ, and 1μF ceramic compatibility-making it optimal for cost-sensitive, medium-power portable systems where capacitor flexibility and thermal robustness are essential.
Availability
AP7365-15WG-7 is available at Aetrix Electronics and suitable for FPGA I/O power, DSP core supply, portable medical sensors, and industrial PLC I/O modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for AP7365-15WG-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 design and manufacturing aligned to IATF 16949 and ISO 9001 standards.
The AP7365 belongs to Diodes' precision LDO portfolio engineered for battery-powered and space-constrained applications demanding low IQ, fast transient response, and robust protection-targeting portable computing, industrial automation, and medical electronics.
FAQ
What is the minimum input voltage required for AP7365-15WG-7 to maintain regulation at 600mA?
The AP7365-15WG-7 requires VIN ≥ VOUT + VDROPOUT. With a typical dropout of 370mV at 600mA for 1.5V output, minimum input is 1.87V. Absolute maximum dropout is 600mV, so VIN must be ≥2.1V to guarantee regulation across all process/temperature corners per datasheet Note 5.
Can AP7365-15WG-7 operate without an output capacitor?
No. The datasheet mandates a minimum 1μF ceramic output capacitor with ESR >15mΩ for stability. Omitting it causes oscillation and potential device failure. The LDO is optimized for ceramic types; tantalum or aluminum electrolytics require higher ESR compensation and are not recommended.
Is the EN pin internally pulled down, and what happens if left unconnected?
Yes-the EN pin has an internal pull-down resistor. If left floating, the device remains disabled. To ensure reliable turn-on, tie EN directly to IN (for always-on operation) or drive it with a logic signal meeting VIH ≥1.4V and VIL ≤0.4V. Do not leave it open in production designs.
How does thermal performance differ between SOT25 and U-DFN2020-6 packages for AP7365?
SOT25 has θJA = 169°C/W on standard FR-4; U-DFN2020-6 achieves 132°C/W due to its exposed thermal pad. For 600mA at VIN = 4.3V, power dissipation is 1.68W-resulting in ~284°C rise in SOT25 (exceeding safe limits) versus ~222°C in U-DFN2020-6. PCB copper area and thermal vias are mandatory for either package at full load.
AP7365-15WG-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):
- 1.5V
- 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:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7365-15WG-7 FAQ
1.How can I place an order for AP7365-15WG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7365-15WG-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 AP7365-15WG-7 reliable?
The price and inventory of AP7365-15WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7365-15WG-7 is usually 5 days.
3.What payment methods are accepted for AP7365-15WG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7365-15WG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7365-15WG-7?
AP7365-15WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7365-15WG-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 AP7365-15WG-7?
For technical support, including AP7365-15WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7365-15WG-7 requirements.
6.How does Aetrix verify that AP7365-15WG-7 is sourced from the original manufacturer or authorized distributors?
All AP7365-15WG-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 AP7365-15WG-7 meets industry standards.
7.What is the process for return or replacement of AP7365-15WG-7?
All AP7365-15WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7365-15WG-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 AP7365-15WG-7 part is unused and in its original packaging.
Return procedure for AP7365-15WG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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