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Diodes Incorporated AP7361EA-15ER-13
- Part No.:
- AP7361EA-15ER-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP7361EA-15ER-13.pdf
- Description:
- LDO CMOS HICURR SOT223 T&R 2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
AP7361EA-15ER-13 from Diodes Incorporated is a 1A, fixed-output (1.5V), ultra-low dropout linear regulator with enable function in SOT223R package. It delivers ±1% output voltage accuracy, 360mV dropout at 1A (for 3.3V variant; 1.5V variant dropout is 500mV typ), and 68µA quiescent current-enabling efficient power delivery in space-constrained, battery-powered systems such as LCD monitor logic supplies.
For engineers reviewing the AP7361EA-15ER-13 datasheet, AP7361EA-15ER-13 pinout, AP7361EA-15ER-13 application, or AP7361EA-15ER-13 equivalent, key selection criteria include dropout performance at 1.5V output, EN pin logic thresholds (VIH = 1.0V min), thermal shutdown threshold (150°C), and compatibility with ≥2.2µF MLCC output capacitors without external compensation.
Technical Context
The AP7361EA-15ER-13 integrates a PMOS pass element, precision 0.8V bandgap reference, and error amplifier to regulate fixed 1.5V output with ±1% accuracy across -40°C to +85°C ambient. Its foldback short-circuit protection limits output current to 400mA during fault conditions, while thermal shutdown activates at ~150°C junction temperature with 20°C hysteresis.
Enable functionality is implemented via a high-logic-level input (VIH ≥ 1.0V) tied to internal gate driver control; the EN pin exhibits 3.0MΩ internal pull-down resistance and ≤0.1µA leakage. The device operates stably with ceramic, tantalum, or solid polymer output capacitors ≥2.2µF and requires no minimum load for regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% - ensures stable core logic supply for microcontrollers and interface ICs without external feedback components. |
| Max Output Current | 1.0A continuous - supports moderate-power digital subsystems including display timing controllers and audio codec bias rails. |
| Dropout Voltage | 500mV typical at 1A (1.5V output) - enables operation from 2.0V input, critical for single-cell Li-ion or multi-cell alkaline systems. |
| Quiescent Current | 68µA typical - minimizes standby power loss in always-on circuits like remote control receivers or sensor wake-up paths. |
| PSRR | 75dB @ 1kHz - suppresses switching noise from upstream DC/DC converters, preserving signal integrity in analog front-ends. |
| Thermal Shutdown | 150°C activation 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 legacy 3.3V/5V system supplies. |
Pinout & Package
SOT223R package: thermally enhanced surface-mount outline with exposed pad (EP) connected to GND for improved heat dissipation; footprint compatible with standard SOT223 but optimized for higher power density.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Regulator input; requires ≥1µF ceramic bypass capacitor placed adjacent to pin to suppress high-frequency noise and stabilize transient response. |
| 2 | GND | Power ground reference; must be low-impedance connection to PCB ground plane, especially under high-current load steps. |
| 3 | OUT | Regulated 1.5V output; requires ≥2.2µF ceramic capacitor with low ESR to maintain stability and minimize output ripple under dynamic load. |
| 4 | EN | Active-high enable; pulled internally to GND via 3.0MΩ resistor; driven high (>1.0V) to activate regulator, low (<0.3V) to disable output and reduce IQ to 0.05µA. |
| EP | Exposed Pad | Thermal pad; must be soldered to large copper area connected to GND for effective heat transfer-critical for sustaining 1A loads at elevated ambient temperatures. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 500mV at 1A for 1.5V output enables use with marginal input sources such as aging batteries or post-regulation DC/DC outputs. |
| Foldback short-circuit protection | Clamps output to 400mA during hard shorts, limiting power dissipation and preventing thermal runaway without latch-off. |
| Stable with low-ESR capacitors | Operates reliably with ≥2.2µF MLCC, solid polymer, or tantalum capacitors-eliminates need for external compensation networks. |
| Low quiescent current | 68µA typical in active mode and 0.05µA in shutdown-extends battery life in portable devices with intermittent operation. |
| High PSRR | 75dB @ 1kHz rejects ripple from noisy switchers, enabling clean power for sensitive analog circuits like ADC references or PLL VCOs. |
Applications
| Smart Display Logic Supply | LCD Monitor Power Management |
|---|---|
|
Use Scenario: Providing regulated 1.5V rail for timing controller ICs and interface buffers in 24-inch LCD monitors. IC Role / Device Role / Timing Role: Primary LDO for logic core voltage, directly powering display interface circuitry requiring tight voltage tolerance and low noise. Use Value: ±1% accuracy and 75dB PSRR ensure stable pixel clock generation and reduced jitter in LVDS/TTL video transmission paths. |
Use Scenario: Powering microcontroller-based backlight dimming and OSD menu logic in consumer-grade LCD TVs. IC Role / Device Role / Timing Role: Enable-controlled auxiliary regulator allowing firmware-driven power sequencing and standby mode entry. Use Value: 68µA quiescent current and fast 200µs startup enable responsive wake-from-standby behavior without compromising energy efficiency. |
| Set-Top Box SoC Core Rail | Home Appliance MCU Supply |
|
Use Scenario: Delivering 1.5V core voltage to ARM Cortex-A53 SoCs in streaming media set-top boxes operating from 3.3V intermediate bus. IC Role / Device Role / Timing Role: Post-regulator for SoC core domain, decoupling digital noise from upstream buck converter. Use Value: 500mV dropout allows reliable operation even when 3.3V rail sags to 2.0V during peak CPU load, preventing brownout resets. |
Use Scenario: Supplying 1.5V to 8-bit/32-bit MCUs in smart washing machines and air conditioners with variable ambient temperature exposure. IC Role / Device Role / Timing Role: Main system regulator supporting wide-temperature operation (-40°C to +85°C) and robust fault protection. Use Value: Thermal shutdown (150°C) and current limit (1.5A) protect against motor driver coupling transients and enclosure overheating scenarios. |
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-1502E/MB | 150mA max output, 600mV dropout at 150mA, 2.5µA IQ - lower current, higher dropout, ultra-low IQ. | Not suitable for 1A loads; limited to low-power peripherals like sensors or RTCs. | Select only if load current <150mA and ultra-low standby power is prioritized over output capability. |
| TPS7A2015PDQNR | 1A output, 170mV dropout at 1A (1.5V), 6.5µA IQ, 90dB PSRR @ 1kHz - superior dropout and PSRR, smaller DQN package. | Requires tighter layout control due to 0.8mm pitch DFN; lacks integrated thermal pad of SOT223R. | Prefer for new designs needing lowest possible dropout or highest noise rejection; verify thermal performance on target PCB. |
Compared with MCP1703T-1502E/MB, AP7361EA-15ER-13 delivers 6.7× higher output current and 17× lower dropout at full load; versus TPS7A2015PDQNR, it trades 170mV vs. 500mV dropout for proven thermal robustness in SOT223R and simpler board-level thermal management.
Availability
AP7361EA-15ER-13 is available at Aetrix Electronics and suitable for LCD monitor logic supplies, set-top box SoC core rails, and home appliance MCU power domains requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP7361EA-15ER-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 solutions for power management, signal integrity, and connectivity applications.
The AP7361EA series belongs to Diodes' high-performance LDO portfolio designed for low-noise, high-accuracy power delivery in consumer, industrial, and computing systems where reliability and thermal resilience are critical.
FAQ
What is the maximum allowable input voltage for AP7361EA-15ER-13?
The absolute maximum input voltage is 6.5V, but recommended operating range is 2.2V to 6.0V. Exceeding 6.0V risks violating safe operating area limits, especially under high ambient temperature or heavy load, and may trigger thermal shutdown prematurely. Operation above 6.0V is not guaranteed and voids reliability specifications.
Can AP7361EA-15ER-13 operate without an output capacitor?
No. A minimum 2.2µF ceramic output capacitor is required for stability across all operating conditions. Omitting it causes oscillation, excessive output ripple, and potential thermal shutdown due to uncontrolled current surges. The device is optimized for low-ESR MLCCs but also supports solid polymer or tantalum types meeting the capacitance and ESR requirements.
Is the EN pin internally pulled down in AP7361EA-15ER-13?
Yes-the EN pin has a 3.0MΩ internal pull-down resistor. When left unconnected, it defaults to logic low, disabling the regulator output and reducing quiescent current to 0.05µA. To enable operation, drive EN to ≥1.0V with a valid logic source; do not rely on weak pull-ups or floating connections.
How does thermal performance differ between SOT223 and SOT223R packages?
SOT223R features an enhanced thermal pad design that reduces θJA to 110°C/W (vs. 120°C/W for standard SOT223), improving power dissipation by ~10% under identical PCB layout. This allows sustained 1A operation at up to +85°C ambient with proper copper pour and thermal vias-critical for enclosed consumer electronics enclosures.
AP7361EA-15ER-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):
- 1.5V
- 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-223R
AP7361EA-15ER-13 FAQ
1.How can I place an order for AP7361EA-15ER-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7361EA-15ER-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-15ER-13 reliable?
The price and inventory of AP7361EA-15ER-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-15ER-13 is usually 5 days.
3.What payment methods are accepted for AP7361EA-15ER-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361EA-15ER-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7361EA-15ER-13?
AP7361EA-15ER-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7361EA-15ER-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-15ER-13?
For technical support, including AP7361EA-15ER-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361EA-15ER-13 requirements.
6.How does Aetrix verify that AP7361EA-15ER-13 is sourced from the original manufacturer or authorized distributors?
All AP7361EA-15ER-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-15ER-13 meets industry standards.
7.What is the process for return or replacement of AP7361EA-15ER-13?
All AP7361EA-15ER-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361EA-15ER-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-15ER-13 part is unused and in its original packaging.
Return procedure for AP7361EA-15ER-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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