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Diodes Incorporated AP7361C-15E-13
- Part No.:
- AP7361C-15E-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP7361C-15E-13.pdf
- Description:
- IC REG LINEAR 1.5V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:1,427
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Product details
Overview
AP7361C-15E-13 from Diodes Incorporated is a 1A fixed-output (1.5V) ultra-low dropout linear regulator with enable, designed for power rail regulation in space-constrained portable and battery-powered systems. It delivers ±1% output accuracy, 360mV dropout at 1A (for 3.3V version), 60µA quiescent current, and integrates thermal shutdown, fold-back short-circuit protection (400mA), and current limit (1.5A). It is used in LCD-TV power supplies and set-top-box core logic rails.
For engineers reviewing the AP7361C-15E-13 datasheet, AP7361C-15E-13 pinout, AP7361C-15E-13 application, or AP7361C-15E-13 equivalent, key selection criteria include dropout voltage at 1.5V output, EN pin logic thresholds (VIH = 1.0V min), stability with ≥2.2µF MLCC output capacitors, and thermal resistance of the SO-8EP package (θJA = 100°C/W).
Technical Context
The AP7361C-15E-13 implements a PMOS pass transistor architecture enabling ultra-low dropout operation and high PSRR (75dB @ 1kHz). Its internal 0.8V bandgap reference and error amplifier regulate output via feedback to the ADJ/NC pin - unused in this fixed 1.5V variant, where it is internally connected.
Enable control is implemented with active-high EN pin (VIH ≥ 1.0V, VIL ≤ 0.3V), and the device features fold-back current limiting that reduces short-circuit current to 400mA while maintaining thermal shutdown at ~150°C with 20°C hysteresis. It operates across –40°C to +85°C ambient without minimum load requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% - ensures stable core logic supply for SoCs requiring tight tolerance. |
| Max Output Current | 1.0A continuous - supports mid-power digital loads like HDMI interface ICs or audio codecs. |
| Dropout Voltage | ≤540mV at 1A (1.2V–1.3V range) - enables operation from 2.04V input, critical for single-cell Li-ion or LiFePO₄ systems. |
| Quiescent Current | 60µA typical - minimizes standby power loss in always-on subsystems (e.g., remote control receivers). |
| PSRR | 75dB @ 1kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Thermal Shutdown | 150°C threshold with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
| Input Voltage Range | 2.2V to 6.0V - compatible with wide-input buck regulators or multi-cell battery inputs. |
Pinout & Package
AP7361C-15E-13 is packaged in SO-8EP (exposed pad), a thermally enhanced 8-pin surface-mount package with GND-connected thermal pad on underside. Pin 1 is IN, Pin 2 is GND, Pin 3 is OUT, Pin 4 is NC, Pin 5 is EN, Pin 6 is NC, Pin 7 is NC, Pin 8 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Regulator input | Accepts 2.2–6.0V; requires ≥1µF ceramic bypass capacitor placed adjacent to pin for noise suppression. |
| 2, 8 (GND) | Power ground | Dual GND pins reduce impedance path; Pin 8 connects to exposed thermal pad for improved heat dissipation. |
| 3 (OUT) | Regulated output | Delivers 1.5V ±1%; requires ≥2.2µF ceramic capacitor directly at pin for stability and transient response. |
| 4 (NC) | No connection | Not bonded; must be left floating or tied to GND per layout best practice - no electrical function. |
| 5 (EN) | Enable input | Active-high logic control (VIH ≥ 1.0V); pulling low disables output and reduces IQ to 0.05µA. |
| 6, 7 (NC) | No connection | Unbonded terminals; electrically inert - no routing or connection required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 360mV typical at 1A for 3.3V version; for 1.5V output, dropout is ≤540mV - extends usable input voltage range in brownout conditions. |
| Low quiescent current | 60µA typical across full input range - enables >1-year battery life in coin-cell–powered IoT sensors with periodic wake-up. |
| Fold-back short-circuit protection | Limits fault current to 400mA - prevents thermal runaway while allowing safe recovery when short is removed. |
| Stable with small MLCCs | Guaranteed stable with ≥2.2µF X5R/X7R ceramic output capacitor - eliminates need for bulky electrolytics, saving board area. |
| High PSRR | 75dB @ 1kHz - maintains clean 1.5V rail despite ripple from noisy switchers or shared input sources. |
Applications
| Set-Top Box Core Logic | LCD TV T-Con Power |
|---|---|
|
Use Scenario: Powering the timing controller (T-Con) ASIC in 4K LCD TVs requiring precise 1.5V supply under dynamic backlight dimming. IC Role / Device Role / Timing Role: Primary low-noise post-regulator delivering stable 1.5V to T-Con's I/O and memory interface blocks. Use Value: 75dB PSRR rejects noise from local DC-DC converters; 60µA IQ minimizes standby consumption during sleep mode. |
Use Scenario: Supplying core logic voltage to MPEG decoder and HDMI receiver ICs in cable/satellite set-top boxes. IC Role / Device Role / Timing Role: Fixed-output LDO providing regulated 1.5V rail for digital signal processing subsystems. Use Value: ±1% accuracy ensures reliable operation of high-speed SerDes interfaces; SO-8EP thermal pad aids conduction cooling in sealed enclosures. |
| Smart Home Hub MCU Core | Portable Audio DAC Supply |
|
Use Scenario: Regulating 1.5V for ARM Cortex-M7 microcontroller cores in Wi-Fi/Zigbee smart home hubs operating from 3.3V intermediate rail. IC Role / Device Role / Timing Role: Low-dropout post-regulator enabling efficient conversion from 3.3V to 1.5V with minimal headroom loss. Use Value: 540mV dropout allows operation down to 2.04V input - accommodates voltage sag during RF transmission bursts. |
Use Scenario: Providing ultra-clean 1.5V bias to stereo DACs in Bluetooth headphones, where EMI-sensitive analog stages demand low-noise supply. IC Role / Device Role / Timing Role: Noise-suppressing LDO isolating DAC analog section from noisy digital power domains. Use Value: 60µA IQ extends battery runtime; stability with 2.2µF MLCC simplifies layout in compact earbud PCBs. |
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-23-5 package, 600mV dropout at 150mA - lower current, higher dropout. | Suitable only for ultra-low-power microcontrollers or sensors, not 1A loads. | Select only if board space is critical and load current <150mA; not drop-in for AP7361C-15E-13's 1A capability. |
| Torex XC6210B152MR-G | 1A output, SOT-25 package, 250mV dropout at 1A (1.5V), but no EN pin and only 50µA IQ - lacks enable control. | Applicable where always-on operation is acceptable and footprint must be smaller than SO-8EP. | Choose when enable functionality is unnecessary and thermal performance is less critical than size. |
Compared with MCP1703T-1502E/MB and XC6210B152MR-G, AP7361C-15E-13 uniquely combines 1A output, enable control, SO-8EP thermal performance, and 540mV dropout at 1.5V - making it optimal for mid-power embedded systems needing both headroom efficiency and system-level power sequencing.
Availability
AP7361C-15E-13 is available at Aetrix Electronics and suitable for LCD-TV timing controllers, set-top-box SoC core rails, smart home hub MCUs, and portable audio DAC supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP7361C-15E-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 devices, with manufacturing certified to IATF 16949:2016 and environmental compliance to RoHS 3 and halogen-free standards.
The AP7361C belongs to Diodes' high-performance LDO regulator product line, engineered for low-noise, low-quiescent-current power management in portable, consumer, and industrial applications demanding precision voltage regulation and robust fault protection.
FAQ
What is the maximum input voltage for AP7361C-15E-13?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2.2V to 6.0V. Exceeding 6.5V risks permanent damage. For reliable 1.5V output, VIN must remain ≥2.04V (1.5V + 540mV dropout) under 1A load; operation near 6.0V increases power dissipation and thermal stress.
Does AP7361C-15E-13 require an external resistor divider for 1.5V output?
No. The "-15" suffix indicates a factory-trimmed fixed 1.5V output; the ADJ pin is internally connected and functions as NC. External resistors are unnecessary and must not be connected - doing so may compromise regulation accuracy or stability.
Can AP7361C-15E-13 be used with ceramic output capacitors smaller than 2.2µF?
No. Stability is guaranteed only with ≥2.2µF ceramic output capacitance (X5R/X7R). Using smaller values risks oscillation or poor transient response. Larger values (e.g., 4.7µF–10µF) improve load step immunity but do not harm stability.
Is the SO-8EP package lead-free and RoHS compliant?
Yes. AP7361C-15E-13 uses totally lead-free construction and is fully RoHS 3 compliant (2015/863/EU), halogen- and antimony-free ("Green"), with moisture sensitivity level 1 per J-STD-020 - suitable for standard reflow processes without baking.
AP7361C-15E-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):
- 0.57V @ 1A (Typ)
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 55dB (1kHz ~ 10kHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
AP7361C-15E-13 FAQ
1.How can I place an order for AP7361C-15E-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7361C-15E-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-15E-13 reliable?
The price and inventory of AP7361C-15E-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-15E-13 is usually 5 days.
3.What payment methods are accepted for AP7361C-15E-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361C-15E-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7361C-15E-13?
AP7361C-15E-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7361C-15E-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-15E-13?
For technical support, including AP7361C-15E-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361C-15E-13 requirements.
6.How does Aetrix verify that AP7361C-15E-13 is sourced from the original manufacturer or authorized distributors?
All AP7361C-15E-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-15E-13 meets industry standards.
7.What is the process for return or replacement of AP7361C-15E-13?
All AP7361C-15E-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361C-15E-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-15E-13 part is unused and in its original packaging.
Return procedure for AP7361C-15E-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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