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Diodes Incorporated AP7361EA-15SP-13
- Part No.:
- AP7361EA-15SP-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP7361EA-15SP-13.pdf
- Description:
- LDO CMOS HICURR SO-8EP T&R 2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
AP7361EA-15SP-13 from Diodes Incorporated is a 1A, fixed-output (1.5V), ultra-low dropout linear regulator in SO-8EP package with enable input, ±1% output accuracy, 360mV dropout at 1A (for 3.3V version), and 68µA typical quiescent current-designed for stable power delivery in space-constrained consumer audio/video equipment.
For engineers reviewing the AP7361EA-15SP-13 datasheet, AP7361EA-15SP-13 pinout, AP7361EA-15SP-13 application, or AP7361EA-15SP-13 equivalent, this device supports precise low-noise biasing of analog circuitry, fast enable-controlled sequencing in multi-rail systems, and thermal-safe operation in ambient temperatures from –40°C to +85°C.
Technical Context
The AP7361EA-15SP-13 integrates a PMOS pass element, bandgap reference, error amplifier, and foldback current limiting with thermal shutdown triggered at ~150°C and 20°C hysteresis. Its architecture enables stable regulation without minimum load and supports both fixed 1.5V output and adjustable configurations via external resistor divider on the ADJ pin.
It delivers 75dB PSRR at 1kHz and maintains regulation across 2.2V–6.0V input range while sustaining 1A output current under thermal limits defined by θJA = 100°C/W (SO-8EP). The EN pin requires VIH ≥ 1.0V and VIL ≤ 0.3V for reliable logic-level control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% - ensures precision bias for 1.5V logic rails and analog sensors without external feedback components. |
| Max Output Current | 1.0A continuous - sufficient for powering multiple ICs or small subsystems in LCD TV mainboards and set-top boxes. |
| Dropout Voltage | 570mV typical at 1A (for 1.5V output) - enables operation from 2.2V input, supporting single-cell Li-ion or dual-cell alkaline supplies. |
| Quiescent Current | 68µA typical - minimizes standby power loss in battery-backed or always-on consumer electronics. |
| PSRR | 75dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO's input rail. |
| Enable Threshold | VIH = 1.0V min, VIL = 0.3V max - compatible with 1.8V/3.3V GPIOs for clean power sequencing in embedded systems. |
| Thermal Shutdown | 150°C activation with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
AP7361EA-15SP-13 uses the SO-8EP (exposed pad) thermally enhanced package, with the exposed pad recommended to be connected to GND for optimal thermal dissipation (θJA = 100°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Regulator input; requires ≥1µF ceramic bypass capacitor placed adjacent to pin to suppress supply noise and ensure stability. |
| 2 | GND | Power ground reference; connects to system ground plane and exposed pad for thermal conduction. |
| 3 | ADJ/NC | No-connect in fixed 1.5V version; left floating or tied to GND per design-no external resistor divider required. |
| 4 | IN | Secondary input connection; electrically tied to Pin 1 internally-used for high-current routing in layout. |
| 5 | EN | Active-high enable; drives regulator ON when ≥1.0V applied; pulls down to <0.3V to disable output and reduce IQ to 0.05µA. |
| 6 | OUT | Regulated 1.5V output; requires ≥2.2µF MLCC or low-ESR capacitor for transient response and stability. |
| 7 | NC | No internal connection; must remain unconnected-no routing or soldering permitted. |
| 8 | GND | Additional ground terminal; ties to same ground net as Pin 2 and exposed pad to minimize ground impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 570mV at 1A for 1.5V output enables use with tight VIN–VOUT margins, e.g., 2.2V input powering 1.5V core logic. |
| Foldback short-circuit protection | Limits output to ~400mA during hard shorts, preventing thermal runaway while allowing safe recovery once fault clears. |
| Stable with low-ESR capacitors | Works reliably with MLCC, solid polymer, or tantalum ≥2.2µF-eliminates need for high-ESR electrolytics in compact designs. |
| Fast enable response | 200µs typical start-up time allows real-time power gating in portable devices, extending battery life during sleep modes. |
| Green RoHS-compliant packaging | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets IEC 61249-2-21 and automotive environmental standards. |
Applications
| Audio/Video Power Rails | LCD Panel Bias Supply |
|---|---|
|
Use Scenario: Providing clean, low-noise 1.5V supply to HDMI receiver PHYs and audio DACs in smart TVs. IC Role / Device Role / Timing Role: Primary post-regulation stage delivering stable voltage after buck converter, with fast enable for hot-plug detection. Use Value: 75dB PSRR suppresses switching ripple from upstream DC/DC, preserving SNR in 24-bit audio paths and reducing EMI emissions. |
Use Scenario: Generating 1.5V gate drive or logic supply for timing controllers in 1080p LCD monitors. IC Role / Device Role / Timing Role: Fixed-output LDO supplying critical timing ICs requiring tight voltage tolerance and rapid turn-on during display wake-up. Use Value: ±1% accuracy ensures consistent gamma correction and color fidelity; 200µs start-up synchronizes with panel initialization sequence. |
| Set-Top Box Core Logic | Home Appliance MCU Subsystem |
|
Use Scenario: Powering 1.5V I/O banks of ARM-based SoCs in streaming media players with dynamic voltage scaling. IC Role / Device Role / Timing Role: Enable-controlled auxiliary rail enabling/disabling peripheral interfaces (USB, SDIO) based on usage state. Use Value: 68µA quiescent current minimizes standby drain; EN pin logic compatibility with 3.3V microcontrollers simplifies control interface. |
Use Scenario: Delivering regulated 1.5V to sensor signal conditioning circuits and touch controller ICs in smart refrigerators. IC Role / Device Role / Timing Role: Isolated low-noise supply decoupled from noisy motor driver rails, operating across industrial temperature range. Use Value: Thermal shutdown and foldback protection prevent field failures due to condensation-induced leakage or wiring faults. |
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, SOT-23 package, 6µA IQ, no EN pin | Lower current capacity; suited only for ultra-low-power microcontroller peripherals-not for 1A loads. | Select only if system load <150mA and enable control is unnecessary. |
| TLS850B2TE/V33 | Automotive-grade (AEC-Q100), 500mA, integrated watchdog, 3.3V fixed output only | Designed for engine control modules; lacks 1.5V option and requires external enable logic for non-automotive use. | Choose only for automotive qualification requirements; not drop-in for 1.5V consumer applications. |
Compared with MCP1703T-1502E/MB and TLS850B2TE/V33, the AP7361EA-15SP-13 uniquely combines 1A output, 1.5V fixed output, enable functionality, and SO-8EP thermal performance-making it the only suitable choice for high-current, space-constrained consumer power rails requiring precise 1.5V regulation.
Availability
AP7361EA-15SP-13 is available at Aetrix Electronics and suitable for LCD TV mainboards, set-top box SoC power domains, and home appliance sensor subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AP7361EA-15SP-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 solutions, with manufacturing certified to IATF 16949 and environmental compliance to RoHS 3 and halogen-free standards.
The AP7361EA belongs to Diodes' high-performance LDO family targeting consumer, computing, and industrial applications where low dropout, low IQ, and robust protection are essential for reliable power integrity.
FAQ
What is the maximum allowable input voltage for AP7361EA-15SP-13?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2.2V to 6.0V. Exceeding 6.0V risks violating safe operating area limits and may trigger thermal shutdown even at light loads due to excessive power dissipation (PD = (VIN − 1.5V) × IOUT).
Can AP7361EA-15SP-13 operate without an output capacitor?
No. A minimum 2.2µF ceramic or low-ESR capacitor is required on the OUT pin for stability and transient response. Omitting it causes oscillation, output overshoot, and potential damage during load steps-confirmed by stability testing across –40°C to +85°C with COUT ≥ 2.2µF.
Is the exposed pad on SO-8EP electrically connected to GND?
Yes-the exposed pad is internally connected to GND and must be soldered to a PCB copper pour tied to the system ground plane. This connection reduces θJA from 150°C/W (unconnected) to 100°C/W and prevents thermal shutdown under 1A load at +85°C ambient.
Does AP7361EA-15SP-13 require a minimum load current to maintain regulation?
No. The device remains stable and fully regulated with zero load current, as confirmed in the datasheet's "No Load Stability" section. This eliminates the need for dummy loads in standby or low-power states, directly supporting energy-efficient design goals.
AP7361EA-15SP-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- 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, Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO-EP
AP7361EA-15SP-13 FAQ
1.How can I place an order for AP7361EA-15SP-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7361EA-15SP-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-15SP-13 reliable?
The price and inventory of AP7361EA-15SP-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-15SP-13 is usually 5 days.
3.What payment methods are accepted for AP7361EA-15SP-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361EA-15SP-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7361EA-15SP-13?
AP7361EA-15SP-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7361EA-15SP-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-15SP-13?
For technical support, including AP7361EA-15SP-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361EA-15SP-13 requirements.
6.How does Aetrix verify that AP7361EA-15SP-13 is sourced from the original manufacturer or authorized distributors?
All AP7361EA-15SP-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-15SP-13 meets industry standards.
7.What is the process for return or replacement of AP7361EA-15SP-13?
All AP7361EA-15SP-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361EA-15SP-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-15SP-13 part is unused and in its original packaging.
Return procedure for AP7361EA-15SP-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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