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Diodes Incorporated AP7361EA-10E-13
- Part No.:
- AP7361EA-10E-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP7361EA-10E-13.pdf
- Description:
- LDO CMOS HICURR SOT223 T&R 2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:2,321
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Product details
Overview
AP7361EA-10E-13 from Diodes Incorporated is a 1A, fixed-output (1.0V), ultra-low dropout linear regulator with enable function in SOT223 package. It delivers ±1% output accuracy, 360mV dropout at 1A (for 3.3V variant; 1.0V variant dropout is 840mV typ), and 68µA quiescent current, enabling stable power for low-power audio/video equipment and battery-powered devices.
For engineers reviewing the AP7361EA-10E-13 datasheet, AP7361EA-10E-13 pinout, AP7361EA-10E-13 application, or AP7361EA-10E-13 equivalent, key selection criteria include dropout voltage at 1.0V output, EN logic thresholds (VIH=1.0V min, VIL=0.3V max), thermal shutdown threshold (150°C), PSRR (75dB @ 1kHz), and compatibility with ≥2.2µF MLCC output capacitors.
Technical Context
The AP7361EA-10E-13 integrates a PMOS pass element, band-gap reference, error amplifier, and thermal shutdown circuitry. Its fixed 1.0V output is internally set, eliminating external resistor divider requirements while maintaining 0.792–0.808V feedback reference precision.
Enable control operates with active-high logic (VIH ≥1.0V, VIL ≤0.3V); internal pull-down resistor (3.0MΩ) ensures default-off behavior when EN is floating. Foldback short-circuit protection limits output to 400mA during fault, and current limiting activates at 1.1–1.5A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0V ±1% - ensures precise core voltage for low-voltage microcontrollers and FPGAs. |
| Max Output Current | 1.0A continuous - supports moderate-power digital loads without external current boosting. |
| Dropout Voltage | 840mV typical at 1A (1.0V output) - enables operation from 1.84V input, critical for single-cell Li-ion or 2-cell alkaline systems. |
| Quiescent Current | 68µA typical - minimizes standby power loss in always-on battery-powered applications. |
| PSRR | 75dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Thermal Shutdown | 150°C trigger with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
| Input Voltage Range | 2.2V to 6.0V - accommodates wide-input industrial rails and multi-cell battery packs. |
Pinout & Package
AP7361EA-10E-13 uses the SOT223 package (3-pin, exposed thermal pad), optimized for cost-sensitive medium-power applications requiring moderate thermal dissipation (θJA = 110°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Regulator input | Accepts 2.2–6.0V supply; requires ≥1µF ceramic bypass capacitor placed adjacent to pin for stability. |
| 2 (GND) | Ground reference | Common return path for input/output currents and internal circuitry; must connect to low-impedance ground plane. |
| 3 (OUT) | Regulated output | Delivers 1.0V ±1%; requires ≥2.2µF ceramic output capacitor for transient response and stability. |
| Exposed Pad | Thermal dissipation node | Must be soldered to large copper area connected to GND for effective heat transfer; not electrically functional as GND. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout at 1.0V | 840mV typ @ 1A - enables regulation from 1.84V input, extending usable battery range in portable designs. |
| Low quiescent current | 68µA typ - reduces no-load power loss by >50% vs. legacy LDOs, critical for long-life IoT sensors. |
| Foldback short-circuit protection | 400mA clamp - limits fault power dissipation to prevent thermal runaway during sustained shorts. |
| Stable with small MLCCs | ≥2.2µF ceramic output capacitor - eliminates need for bulky electrolytics, saving board space and improving reliability. |
| Enable with internal pull-down | 3.0MΩ EN pull-down - ensures safe power-off state when EN is unconnected, simplifying system-level power sequencing. |
Applications
| Smart Home Sensors | Portable Audio DACs |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor nodes operating on two AA cells (2.0–3.2V). IC Role / Device Role / Timing Role: Primary 1.0V supply for ultra-low-power MCU and RF transceiver. Use Value: 68µA quiescent current extends 10-year battery life; 840mV dropout allows full regulation until battery drops to 1.84V. | Use Scenario: USB-powered portable headphone amplifier with ESS Sabre DAC requiring clean 1.0V analog core rail. IC Role / Device Role / Timing Role: Post-regulation LDO filtering noise from upstream buck converter. Use Value: 75dB PSRR at 1kHz attenuates switching ripple, reducing audible noise floor by >20dB. |
| Industrial PLC I/O Modules | Medical Wearable Front-Ends |
Use Scenario: DIN-rail mounted I/O module powered from 24V bus with local 3.3V/1.0V conversion. IC Role / Device Role / Timing Role: Secondary 1.0V rail for isolated ADC interface logic and level shifters. Use Value: Thermal shutdown (150°C) and current limit (1.5A) protect against field wiring faults without external protection circuitry. | Use Scenario: ECG patch with ASIC requiring tightly regulated 1.0V analog supply from coin cell. IC Role / Device Role / Timing Role: Precision voltage source for analog front-end biasing and reference generation. Use Value: ±1% output accuracy and <100ppm/°C tempco ensure consistent signal chain gain across -40°C to +85°C patient environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP2204-1.0TRG1 | 0.8A max output, 1.2V dropout at 1A, no EN pin, SOT23-5 package | Lacks enable control and thermal shutdown; limited to lower-current, non-fault-tolerant designs | Select only if enable and thermal protection are unnecessary and board space constraints favor SOT23-5. |
| MCP1700T-1002E/TT | 250mA max output, 6µA IQ, SOT23-3 package, no thermal shutdown | Insufficient current for 1A loads; suited only for ultra-low-power logic rails, not analog cores | Use only for sub-250mA logic supplies where ultra-low IQ outweighs current capability and protection needs. |
Compared with AP2204-1.0TRG1 and MCP1700T-1002E/TT, the AP7361EA-10E-13 uniquely combines 1A output, enable control, thermal shutdown, and 1.0V fixed output in SOT223-making it the sole option among these three for robust, medium-power 1.0V regulation with full fault protection.
Availability
AP7361EA-10E-13 is available at Aetrix Electronics and suitable for smart home sensors, portable audio DACs, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP7361EA-10E-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 semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.
The AP7361EA belongs to Diodes' high-performance LDO family designed for low-noise, low-dropout power regulation in battery-powered and space-constrained industrial systems.
FAQ
What is the minimum input voltage required for AP7361EA-10E-13 to regulate 1.0V output at 1A?
The minimum input voltage is 1.84V, calculated from the typical 840mV dropout voltage at 1A plus the 1.0V nominal output. Operation below this voltage results in unregulated output. The device's absolute minimum input rating is 2.2V per datasheet, so practical designs must maintain VIN ≥2.2V to ensure specification compliance and margin.
Can AP7361EA-10E-13 be used without connecting the EN pin?
Yes, but only if the application requires permanent enable. The EN pin has an internal 3.0MΩ pull-down resistor, so leaving it unconnected defaults the device to OFF. To ensure continuous operation, tie EN directly to IN. Do not leave EN floating in production designs, as noise may cause erratic enable/disable behavior.
Does AP7361EA-10E-13 require an external resistor divider for 1.0V output?
No. The "-10" suffix indicates a factory-trimmed fixed 1.0V output version. The ADJ pin is NC (no connection) in this variant and must not be connected. External resistors are required only for adjustable versions (e.g., AP7361EA-ADJ), not for AP7361EA-10E-13.
What thermal considerations apply to AP7361EA-10E-13 in SOT223 package?
The SOT223 package has θJA = 110°C/W. At 1A load with 2.2V input (1.2V drop), power dissipation is 1.2W, raising junction temperature by 132°C above ambient. To avoid thermal shutdown at +85°C ambient, the PCB must provide ≥2.2cm² of 2oz copper connected to the exposed pad, or input voltage must be reduced to limit power loss.
AP7361EA-10E-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):
- 1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 91 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Current Limit
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
AP7361EA-10E-13 FAQ
1.How can I place an order for AP7361EA-10E-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7361EA-10E-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 AP7361EA-10E-13 reliable?
The price and inventory of AP7361EA-10E-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7361EA-10E-13 is usually 5 days.
3.What payment methods are accepted for AP7361EA-10E-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361EA-10E-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7361EA-10E-13?
AP7361EA-10E-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7361EA-10E-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 AP7361EA-10E-13?
For technical support, including AP7361EA-10E-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361EA-10E-13 requirements.
6.How does Aetrix verify that AP7361EA-10E-13 is sourced from the original manufacturer or authorized distributors?
All AP7361EA-10E-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 AP7361EA-10E-13 meets industry standards.
7.What is the process for return or replacement of AP7361EA-10E-13?
All AP7361EA-10E-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361EA-10E-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 AP7361EA-10E-13 part is unused and in its original packaging.
Return procedure for AP7361EA-10E-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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