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Diodes Incorporated AP7387-30Y-13
- Part No.:
- AP7387-30Y-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7387-30Y-13.pdf
- Description:
- LDO CMOS LOWCURR SOT89 T&R 2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:2,158
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Product details
Overview
AP7387-30Y-13 from Diodes Incorporated is a 3.0V fixed-output, wide-input (5–60V), 150mA ultra-low-dropout linear regulator in SOT89 package, featuring 700mV dropout at 100mA, 2μA quiescent current, and 70dB PSRR at 1kHz-designed for battery-powered smoke detectors and EV battery management systems where high input voltage tolerance and low standby power are critical.
For engineers reviewing the AP7387-30Y-13 datasheet, AP7387-30Y-13 pinout, AP7387-30Y-13 application, or AP7387-30Y-13 equivalent, this page delivers verified technical context, package-specific thermal resistance (165°C/W), transient response performance, and real-world selection guidance for industrial and automotive-grade LDO replacement scenarios.
Technical Context
The AP7387-30Y-13 integrates a precision voltage reference, error amplifier, and internal PMOS pass transistor to regulate output at 3.0V ±2% across input voltages from 5V to 60V. Its architecture enables fast line/load transient response due to high-gain error amplification and low output impedance.
Protection functions include current limiting (250mA typ.), thermal shutdown at +150°C with +30°C hysteresis, and short-circuit protection. The device operates over –40°C to +85°C ambient and supports stable regulation with only 1μF input and 10μF ceramic output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0V ±2% - ensures stable MCU core supply under varying load and temperature. |
| Input Voltage Range | 5V to 60V - supports direct connection to 12V/24V/48V industrial and EV battery rails without pre-regulation. |
| Max Output Current | 150mA - sufficient for low-power microcontrollers, sensors, and RF modules in space-constrained designs. |
| Dropout Voltage | 700mV @ 100mA - enables operation down to VIN = 3.7V while maintaining regulated 3.0V output. |
| Quiescent Current | 2μA typ. - extends battery life in always-on smoke detectors and remote sensors by minimizing standby loss. |
| PSRR | 70dB @ 1kHz - suppresses ripple from noisy DC-DC converters or alternator-sourced supplies in automotive applications. |
| Thermal Resistance θJA | 165°C/W (SOT89) - defines maximum power dissipation (e.g., 330mW at ΔT = 55°C) before thermal shutdown triggers. |
Pinout & Package
SOT89 package (AP7387-30Y-13) features 3 pins in standard configuration: Pin 1 = VIN, Pin 2 = GND, Pin 3 = VOUT. Exposed pad (EP) is internally connected to GND and must be soldered to large PCB copper area for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input voltage supply | Accepts 5–60V unregulated input; requires 1μF ceramic decoupling capacitor placed adjacent to pin. |
| 2 (GND) | Ground reference | Common return path for input/output capacitors and load; connects internally to exposed pad for thermal conduction. |
| 3 (VOUT) | Regulated output | Delivers stable 3.0V ±2%; requires 10μF X7R/X5R ceramic capacitor directly between VOUT and GND. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range (5–60V) | Eliminates need for external buck pre-regulator in 24V/48V industrial control and HEV BMS subsystems. |
| Ultra-low IQ (2μA) | Enables >10-year battery life in lithium-thionyl chloride–powered smoke detectors with periodic wake-up cycles. |
| High PSRR (70dB @ 1kHz) | Rejects switching noise from upstream DC-DC converters, preserving ADC accuracy and sensor signal integrity. |
| Fast transient response | Minimizes output voltage deviation (<50mV) during 10–100mA load steps, ensuring reliable microcontroller operation. |
| Integrated protections | Current limit (250mA), thermal shutdown (+150°C), and short-circuit protection prevent field failures without external circuitry. |
Applications
| Smoke Detector Power Supply | EV Battery Monitoring Node |
|---|---|
|
Use Scenario: Primary 3.0V rail for CO/heat sensor ICs and low-power MCU in battery-operated residential smoke alarms. IC Role / Device Role / Timing Role: Ultra-low-IQ LDO providing clean, stable bias for analog front-end and sleep-mode logic. Use Value: 2μA quiescent current extends 9V alkaline battery life beyond 10 years per UL 217 requirements. |
Use Scenario: Local 3.0V supply for cell voltage monitoring ICs and isolated CAN transceivers in 400V EV battery packs. IC Role / Device Role / Timing Role: High-input-voltage LDO stepping down auxiliary 12V rail to power safety-critical monitoring circuitry. Use Value: 60V max input rating allows direct use of vehicle's 12V system without derating or additional protection. |
| Industrial Sensor Transmitter | Home Appliance Control Board |
|
Use Scenario: Powering 4–20mA loop transmitter ICs and precision op-amps in harsh factory environments. IC Role / Device Role / Timing Role: Robust LDO delivering noise-immune 3.0V supply despite fluctuating 24V DC plant power. Use Value: 70dB PSRR and excellent line regulation (0.01%/V) maintain transmitter accuracy amid supply ripple. |
Use Scenario: Regulating 3.0V for touch controller, display driver, and Wi-Fi SoC in smart washing machines and ovens. IC Role / Device Role / Timing Role: Fixed-output LDO supplying mixed-signal subsystems from shared 5V/12V internal rail. Use Value: Fast load transient response prevents brown-out resets during display backlight activation or motor startup surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-IQ, wide-input LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7380-30Y-13 | Same family, but 300mA output and higher IQ (3.5μA); 850mV dropout @ 100mA. | Better suited for higher-current loads like multi-sensor nodes; less optimal for ultra-long-life battery apps. | Select when >150mA peak load or lower dropout margin is required; verify thermal design with θJA = 165°C/W. |
| TPS7B8133QDGNRQ1 | Automotive-grade (AEC-Q100), 350mA, 2.5μA IQ, 60V input, but larger MSOP-8 package and higher cost. | Required for ASIL-B functional safety compliance; includes enable pin and power-good flag not present in AP7387. | Choose only if automotive qualification, diagnostic features, or higher current headroom are mandatory. |
Compared with AP7387-30Y-13, AP7380-30Y-13 trades ultra-low IQ for higher output capability, while TPS7B8133QDGNRQ1 adds automotive qualification and diagnostics at the expense of size and cost-making AP7387-30Y-13 optimal for cost-sensitive, battery-limited industrial and consumer applications requiring minimal footprint and standby power.
Availability
AP7387-30Y-13 is available at Aetrix Electronics and suitable for battery-powered equipment, smoke detectors and sensors, and EV/HEV battery management systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AP7387-30Y-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, automotive, and consumer markets.
The AP7387 belongs to Diodes' wide-input ultra-low-IQ LDO product line, engineered specifically for battery longevity and robustness in high-voltage industrial and automotive subsystems where traditional LDOs fail.
FAQ
What is the minimum input voltage required for AP7387-30Y-13 to regulate 3.0V output?
The AP7387-30Y-13 requires VIN ≥ VOUT + VDROP to maintain regulation. With typical dropout of 700mV at 100mA, minimum input is 3.7V. At full 150mA load, dropout rises to 1100mV, requiring VIN ≥ 4.1V. Below these thresholds, output drops linearly with input.
Can AP7387-30Y-13 be used with ceramic output capacitors smaller than 10μF?
No-10μF is the minimum recommended ceramic output capacitance (X7R/X5R) for stability per the datasheet. Using <10μF risks oscillation or poor transient response. Larger values (e.g., 22μF) improve load-step immunity but do not harm stability.
Does AP7387-30Y-13 require an input capacitor, and what type is recommended?
Yes-a 1μF ceramic capacitor is mandatory between VIN and GND, placed as close as possible to the pins. This decouples high-frequency noise and prevents instability. Additional bulk capacitance may be added, but the 1μF ceramic must remain adjacent to the device.
Is AP7387-30Y-13 qualified for automotive applications?
No-AP7387-30Y-13 is an industrial-grade part. For automotive use, Diodes offers the AP7387Q variant (separate datasheet), which meets AEC-Q100 Grade 1 (–40°C to +125°C) and includes enhanced ESD and reliability testing.
AP7387-30Y-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.35V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 4 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Current Limit
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
AP7387-30Y-13 FAQ
1.How can I place an order for AP7387-30Y-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7387-30Y-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 AP7387-30Y-13 reliable?
The price and inventory of AP7387-30Y-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7387-30Y-13 is usually 5 days.
3.What payment methods are accepted for AP7387-30Y-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7387-30Y-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7387-30Y-13?
AP7387-30Y-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7387-30Y-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 AP7387-30Y-13?
For technical support, including AP7387-30Y-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7387-30Y-13 requirements.
6.How does Aetrix verify that AP7387-30Y-13 is sourced from the original manufacturer or authorized distributors?
All AP7387-30Y-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 AP7387-30Y-13 meets industry standards.
7.What is the process for return or replacement of AP7387-30Y-13?
All AP7387-30Y-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7387-30Y-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 AP7387-30Y-13 part is unused and in its original packaging.
Return procedure for AP7387-30Y-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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