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Diodes Incorporated AP7361C-25Y5-13
- Part No.:
- AP7361C-25Y5-13
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-89-5/6
- Datasheet:
-
AP7361C-25Y5-13.pdf
- Description:
- IC REG LINEAR 2.5V 1A SOT89-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,431
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Product details
Overview
AP7361C-25Y5-13 from Diodes Incorporated is a 1A fixed-output (2.5V) ultra-low dropout linear regulator in SOT89-5 package with enable control, ±1% output accuracy, 360mV dropout at 1A (for 3.3V variant; 2.5V dropout is 250mV typ), and 60µA quiescent current-designed for stable power delivery in battery-powered audio/video systems and LCD display subsystems.
For engineers reviewing the AP7361C-25Y5-13 datasheet, AP7361C-25Y5-13 pinout, AP7361C-25Y5-13 application, or AP7361C-25Y5-13 equivalent, key selection criteria include dropout voltage at 2.5V output, EN pin logic thresholds (VIH ≥1.0V, VIL ≤0.3V), thermal shutdown threshold (150°C), PSRR (75dB @ 1kHz), and compatibility with ≥2.2µF MLCC output capacitors.
Technical Context
The AP7361C-25Y5-13 integrates a PMOS pass element, band-gap reference, error amplifier, and fold-back current limiting. Its fixed 2.5V output is internally trimmed, eliminating external resistor networks required in adjustable variants.
Enable functionality is implemented via a high-impedance EN pin with 3.0MΩ internal pull-down; operation requires VIH ≥1.0V to activate regulation and VIL ≤0.3V to disable output. Thermal shutdown engages at 150°C with 20°C hysteresis, enabling self-recovery without external intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% - ensures precise rail generation for ADC references or core logic without trimming. |
| Max Output Current | 1.0A continuous - supports moderate-power digital loads such as SoC I/O domains or display drivers. |
| Dropout Voltage | 250mV typical at 1A (2.5V output) - enables regulation from 2.75V input, critical for single-cell Li-ion or 3.3V rail derating. |
| Quiescent Current | 60µA typical - minimizes standby power loss in always-on subsystems like remote control receivers or sensor wake-up circuits. |
| PSRR | 75dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Thermal Shutdown | 150°C trigger with 20°C hysteresis - provides autonomous overtemperature protection without system-level monitoring. |
| Input Voltage Range | 2.2V to 6.0V - accommodates wide-input sources including USB PD, multi-cell batteries, and industrial 5V rails. |
Pinout & Package
SOT89-5 package: 5-pin thermally enhanced plastic package with exposed pad (pin 4 = GND); footprint optimized for PCB heat dissipation in space-constrained applications.
| 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 for input/output paths and thermal pad; must be connected to large copper pour for θJA = 150°C/W. |
| 3 (OUT) | Regulated output | Delivers stable 2.5V; requires ≥2.2µF ceramic capacitor directly between OUT and GND for transient response and stability. |
| 4 (GND) | Thermal ground pad | Exposed pad tied to PCB ground plane via multiple thermal vias; primary path for heat conduction and EMI reduction. |
| 5 (EN) | Enable control input | Active-high logic interface (VIH ≥1.0V); internal 3.0MΩ pull-down allows direct tie-to-IN for always-on operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 250mV at 1A for 2.5V output - extends usable input range and improves efficiency in low-voltage battery systems. |
| High PSRR | 75dB @ 1kHz - maintains clean 2.5V rail despite noisy switcher inputs, reducing need for additional filtering. |
| Fold-back short-circuit protection | Limits output to ~400mA during hard shorts - prevents thermal runaway while allowing safe recovery after fault removal. |
| Stable with small MLCCs | Works with ≥2.2µF ceramic output capacitors - eliminates need for bulky electrolytics, saving board space and cost. |
| Wide ambient temperature range | -40°C to +85°C operation - qualified for consumer electronics, industrial HMI panels, and automotive cabin modules. |
Applications
| Portable Audio DAC Power | LCD Panel Bias Supply |
|---|---|
|
Use Scenario: Powering 24-bit audio DACs in Bluetooth speakers requiring ultra-low noise 2.5V reference rails. IC Role / Device Role / Timing Role: Primary low-noise post-regulator delivering clean 2.5V from a noisy 3.3V buck converter output. Use Value: 75dB PSRR at 1kHz suppresses switching artifacts, preserving SNR >110dB in audio signal chain. |
Use Scenario: Generating stable 2.5V bias for TFT-LCD source driver ICs in smart displays. IC Role / Device Role / Timing Role: Fixed-output LDO supplying gate driver logic and analog reference voltage. Use Value: ±1% accuracy and 250mV dropout ensure consistent gamma correction across varying input voltages and temperatures. |
| Set-Top Box USB Peripherals | Smart Home Sensor Hub Core Rail |
|
Use Scenario: Powering USB 2.0 PHY transceivers and hub controllers in cable/satellite STBs. IC Role / Device Role / Timing Role: Local 2.5V regulator for USB interface logic, decoupled from main 3.3V system rail. Use Value: 60µA quiescent current minimizes standby power draw during deep-sleep modes mandated by energy regulations. |
Use Scenario: Providing 2.5V core supply to ARM Cortex-M microcontrollers and environmental sensors in battery-operated hubs. IC Role / Device Role / Timing Role: Always-on LDO powering MCU RTC, wake-up comparators, and low-power sensor interfaces. Use Value: Thermal shutdown (150°C) and fold-back current limit prevent field failures under sustained 1A load in enclosed enclosures. |
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 |
|---|---|---|---|
| MCP1703T-2502E/MB | 250mA max output, higher 350mV dropout at 250mA, no EN pin | Not suitable for 1A loads; lacks enable control for power sequencing | Select only for low-current, always-on applications where size and cost outweigh performance needs. |
| TLS850B2TE/V33 | Automotive-grade AEC-Q100, 500mA output, 200mV dropout at 500mA, integrated watchdog | Overqualified for consumer use; higher cost and larger SO-8EP package | Choose only if automotive qualification, extended temp range (-40°C to +150°C), or functional safety features are mandatory. |
Compared with MCP1703T-2502E/MB and TLS850B2TE/V33, the AP7361C-25Y5-13 uniquely balances 1A capability, 250mV dropout at full load, EN control, and SOT89-5 compactness-making it optimal for cost-sensitive, space-constrained consumer electronics requiring robust 2.5V regulation.
Availability
AP7361C-25Y5-13 is available at Aetrix Electronics and suitable for portable audio systems, LCD panel bias supplies, set-top box peripheral power, and smart home sensor hubs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP7361C-25Y5-13 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 manufacturer specializing in discrete, analog, and mixed-signal devices, with operations certified to IATF 16949:2016 and ISO 9001 standards.
The AP7361C belongs to Diodes' high-performance LDO regulator family, engineered for low-noise, high-accuracy power delivery in battery-powered and noise-sensitive consumer and industrial applications.
FAQ
What is the minimum input voltage required for stable 2.5V output at 1A?
The AP7361C-25Y5-13 requires VIN ≥ 2.75V to maintain regulation at 1A load, based on its typical 250mV dropout voltage. At lower input voltages, output collapses; operation below 2.2V absolute maximum rating risks damage. Input must also stay within 2.2V–6.0V recommended range.
Can the EN pin be left floating?
No. The EN pin has an internal 3.0MΩ pull-down resistor but must not be left floating due to susceptibility to noise-induced toggling. For always-on operation, tie EN directly to IN. For controlled enable, drive with a clean logic signal meeting VIH ≥1.0V and VIL ≤0.3V specifications.
Is a minimum load required for stability?
No minimum load is required. The AP7361C-25Y5-13 remains stable and regulated from zero load up to 1A, verified per datasheet testing conditions. This eliminates need for dummy loads in low-power sleep states.
What thermal considerations apply to the SOT89-5 package?
The SOT89-5 package has θJA = 150°C/W. To avoid thermal shutdown at 1A, keep ambient temperature ≤65°C when VIN = 4.5V (PD = 2.0W). Use ≥2 thermal vias under the exposed GND pad and connect to ≥1in² internal/external ground plane for reliable operation.
AP7361C-25Y5-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-89-5/6
- 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.44V @ 1A (Typ)
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 55dB (1kHz ~ 10kHz)
- 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-89-5
AP7361C-25Y5-13 FAQ
1.How can I place an order for AP7361C-25Y5-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7361C-25Y5-13 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 AP7361C-25Y5-13 reliable?
The price and inventory of AP7361C-25Y5-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7361C-25Y5-13 is usually 5 days.
3.What payment methods are accepted for AP7361C-25Y5-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361C-25Y5-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7361C-25Y5-13?
AP7361C-25Y5-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7361C-25Y5-13 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 AP7361C-25Y5-13?
For technical support, including AP7361C-25Y5-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361C-25Y5-13 requirements.
6.How does Aetrix verify that AP7361C-25Y5-13 is sourced from the original manufacturer or authorized distributors?
All AP7361C-25Y5-13 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 AP7361C-25Y5-13 meets industry standards.
7.What is the process for return or replacement of AP7361C-25Y5-13?
All AP7361C-25Y5-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361C-25Y5-13, 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 AP7361C-25Y5-13 part is unused and in its original packaging.
Return procedure for AP7361C-25Y5-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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