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Diodes Incorporated AP7387Q-50FDCW-7
- Part No.:
- AP7387Q-50FDCW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP7387Q-50FDCW-7.pdf
- Description:
- IC REG LINEAR 5V 150MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,536
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Product details
Overview
AP7387Q-50FDCW-7 from Diodes Incorporated is an AEC-Q100 qualified automotive-grade ultra-low-dropout linear regulator delivering 5.0V fixed output at up to 150mA, with 5V–60V input range, 700mV dropout at 100mA, 2μA quiescent current, and 70dB PSRR at 1kHz - designed for powering CAN/LIN transceivers and MCU subsystems in harsh automotive environments.
For engineers reviewing the AP7387Q-50FDCW-7 datasheet, AP7387Q-50FDCW-7 pinout, AP7387Q-50FDCW-7 application, or AP7387Q-50FDCW-7 equivalent, key selection criteria include wide-input voltage tolerance, thermal shutdown behavior, ±2% output accuracy under load/line transients, and U-DFN2020-6 (SWP) package thermal performance in constrained PCB layouts.
Technical Context
The AP7387Q-50FDCW-7 integrates a precision voltage reference, error amplifier, and internal resistor network to maintain stable 5.0V output across -40°C to +125°C ambient. Its architecture supports fast line/load transient response due to optimized control loop dynamics and low-output-impedance regulation.
It implements dual protection: current-limit circuitry clamping output at ~250mA and thermal shutdown triggered at +150°C junction temperature with +30°C hysteresis. The device operates without external compensation, requiring only 1μF input and 10μF ceramic output capacitors for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 60V - enables direct connection to automotive battery rails including cold-crank (5V) and load-dump (60V) conditions. |
| Output Voltage | Fixed 5.0V ±2% - ensures compatibility with 5V-tolerant MCUs, CAN transceivers, and analog sensors without external feedback. |
| Max Output Current | 150mA - sufficient for low-power microcontrollers, LIN/CAN PHYs, and sensor signal chains in body electronics modules. |
| Dropout Voltage | 700mV @100mA (typ.) - maintains regulation down to VIN = 5.7V, critical for start-stop system operation. |
| Quiescent Current | 2μA (typ.) - minimizes standby power loss in always-on vehicle networks (e.g., door module wake-up circuits). |
| PSRR | 70dB @1kHz - suppresses alternator ripple and switching noise from adjacent DC/DC converters feeding shared power domains. |
| Thermal Shutdown | +150°C with +30°C hysteresis - prevents permanent damage during sustained overload or poor PCB copper layout. |
Pinout & Package
AP7387Q-50FDCW-7 uses the U-DFN2020-6 (SWP) (Type UXC) package: 2.0mm × 2.0mm × 0.6mm body with 0.65mm pitch, exposed thermal pad (EP), and NiPdAu-plated terminals. Recommended PCB layout uses ≥10mm² GND-connected copper area under EP for θJA = 47.9°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 5.0V output - connect directly to load with low-inductance 10μF ceramic capacitor placed within 2mm. |
| 2, 5 | GND | Power ground return - tie both pins and EP to common low-impedance ground plane to minimize noise coupling. |
| 3 | VIN | Main input supply - route with wide trace from 1μF decoupling cap; withstands 80V absolute max transient. |
| 4, 6 | NC | No internal connection - recommended to connect to GND for enhanced thermal conduction and EMI shielding. |
| EP | Exposed Pad | Thermal interface only - must be soldered to large GND copper area; not electrically functional as GND node. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Input Range (5–60V) | Eliminates need for pre-regulator in 12V/24V/48V automotive architectures, supporting cold-crank and load-dump immunity per ISO 7637-2. |
| Ultra-Low IQ (2μA) | Enables <10μW standby power draw - essential for battery-powered telematics and remote keyless entry modules with multi-year shelf life. |
| Fast Transient Response | Settles within 200μs after 10–150mA load step - preserves MCU clock stability and ADC reference integrity during burst-mode communication. |
| AEC-Q100 Grade 1 Qualification | Validated for -40°C to +125°C operation with PPAP documentation - meets functional safety requirements for ASIL-B supporting systems. |
| Integrated Protection | Combines current limit (~250mA), short-circuit foldback, and thermal shutdown - reduces BOM count vs. discrete protection solutions. |
Applications
| Automotive Body Control Module | CAN/LIN Transceiver Power |
|---|---|
|
Use Scenario: Centralized power rail for door latch controllers, window lift drivers, and interior lighting logic. IC Role / Device Role / Timing Role: Primary 5V LDO supplying MCU, EEPROM, and Hall-effect sensors in distributed ECUs. Use Value: Maintains regulation during 5.5V cold-crank dips and rejects alternator ripple via 70dB PSRR, preventing brownout resets. |
Use Scenario: Dedicated supply for high-speed CAN FD or LIN 2.2 transceivers in gateway or domain controllers. IC Role / Device Role / Timing Role: Clean, low-noise 5V source isolating transceiver VCC from noisy main power domains. Use Value: Fast load transient response (<200μs) ensures stable bus timing during arbitration bursts without VCC droop-induced bit errors. |
| EV Battery Management Unit | Transmission Control Unit |
|
Use Scenario: Auxiliary supply for cell monitoring ICs and isolation gate drivers in 400V/800V battery packs. IC Role / Device Role / Timing Role: Post-DC/DC LDO providing isolated 5V for analog front-end and SPI interface circuitry. Use Value: 60V max input rating allows direct tap from intermediate 48V auxiliary rail, reducing conversion stages and improving efficiency. |
Use Scenario: Powering TCU's real-time processor, solenoid drivers, and position sensor interfaces in automatic transmissions. IC Role / Device Role / Timing Role: High-reliability 5V regulator with thermal hysteresis ensuring continuous operation during extended torque-converter lockup. Use Value: Thermal shutdown recovery (+30°C hysteresis) prevents latch-up during repeated high-current solenoid actuation cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-dropout automotive regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | Lower input range (1.4–5.5V), 300mA output, 170mV dropout @150mA - lacks 60V surge tolerance. | Suitable only for post-regulated 3.3V/5V domains; cannot replace AP7387Q-50FDCW-7 in direct-battery applications. | Select when input is already regulated and higher current/low-dropout is prioritized over wide-VIN capability. |
| MAX6675ATB+T | 5V fixed, 150mA, 60V max input, but 10μA IQ and no AEC-Q100 qualification - lacks automotive change control. | Acceptable for industrial control, but not compliant for production automotive ECUs requiring PPAP and IATF 16949 traceability. | Choose for cost-sensitive non-automotive designs where AEC-Q100 is not mandated and 8× higher IQ is acceptable. |
Compared with TLV73350PDBVR and MAX6675ATB+T, AP7387Q-50FDCW-7 uniquely combines 60V input tolerance, 2μA quiescent current, AEC-Q100 Grade 1 qualification, and U-DFN2020-6 thermal performance - making it the only drop-in solution for battery-direct 5V LDO needs in ASIL-B automotive subsystems.
Availability
AP7387Q-50FDCW-7 is available at Aetrix Electronics and suitable for automotive body control modules, EV battery management units, and transmission control units requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AP7387Q-50FDCW-7 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 automotive, industrial, and computing markets.
The AP7387Q series belongs to Diodes' automotive-qualified LDO portfolio, engineered specifically for battery-direct power regulation in harsh environments - emphasizing wide-VIN operation, ultra-low IQ, and AEC-Q100 compliance for next-generation vehicle ECUs.
FAQ
What is the maximum allowable input voltage for AP7387Q-50FDCW-7 during transient conditions?
The absolute maximum input voltage is 80V for ≤100ms per JEDEC JESD78, validated for ISO 7637-2 Pulse 5a (load dump). Continuous operation must remain within 5V–60V per recommended conditions. Exceeding 80V risks permanent damage even if duration is brief.
Can AP7387Q-50FDCW-7 operate without an output capacitor?
No - a minimum 1μF ceramic output capacitor is mandatory for stability and transient response. Omitting it causes oscillation and potential thermal runaway. X5R/X7R dielectrics are required; tantalum or aluminum electrolytics are not recommended due to ESR and aging effects.
How does the NC pin function in the U-DFN2020-6 package?
Pins 4 and 6 are unconnected internally and serve no electrical function. Diodes recommends tying them to GND on the PCB to improve thermal dissipation and reduce radiated emissions - they do not carry current or affect regulation.
Is AP7387Q-50FDCW-7 compatible with lead-free reflow profiles?
Yes - it is fully RoHS 3 compliant and rated for peak reflow temperatures up to +260°C (10-second lead temperature). The U-DFN2020-6 package uses NiPdAu plating and meets J-STD-020 moisture sensitivity Level 1, allowing standard Pb-free reflow without baking.
AP7387Q-50FDCW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad
- 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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.6V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 5 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2020-6 (Type C)
AP7387Q-50FDCW-7 FAQ
1.How can I place an order for AP7387Q-50FDCW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7387Q-50FDCW-7 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 AP7387Q-50FDCW-7 reliable?
The price and inventory of AP7387Q-50FDCW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7387Q-50FDCW-7 is usually 5 days.
3.What payment methods are accepted for AP7387Q-50FDCW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7387Q-50FDCW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7387Q-50FDCW-7?
AP7387Q-50FDCW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7387Q-50FDCW-7 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 AP7387Q-50FDCW-7?
For technical support, including AP7387Q-50FDCW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7387Q-50FDCW-7 requirements.
6.How does Aetrix verify that AP7387Q-50FDCW-7 is sourced from the original manufacturer or authorized distributors?
All AP7387Q-50FDCW-7 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 AP7387Q-50FDCW-7 meets industry standards.
7.What is the process for return or replacement of AP7387Q-50FDCW-7?
All AP7387Q-50FDCW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7387Q-50FDCW-7, 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 AP7387Q-50FDCW-7 part is unused and in its original packaging.
Return procedure for AP7387Q-50FDCW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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