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Diodes Incorporated AP7387Q-30FDCW-7
- Part No.:
- AP7387Q-30FDCW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP7387Q-30FDCW-7.pdf
- Description:
- IC REG LINEAR 3V 150MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,980
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Product details
Overview
AP7387Q-30FDCW-7 from Diodes Incorporated is an automotive-grade ultra-low-dropout linear regulator delivering 3.0V fixed output at up to 150mA, with 5V–60V input range, 700mV dropout @100mA, ±2% output accuracy, and 70dB PSRR @1kHz. It integrates thermal shutdown, short-circuit protection, and current limiting for robust operation in harsh automotive environments such as body control modules and battery management systems.
For engineers reviewing the AP7387Q-30FDCW-7 datasheet, AP7387Q-30FDCW-7 pinout, AP7387Q-30FDCW-7 application, or AP7387Q-30FDCW-7 equivalent, key selection criteria include wide-input capability under load transients, AEC-Q100 qualification, U-DFN2020-6 (SWP) thermal performance, and low 2μA quiescent current for always-on automotive subsystems.
Technical Context
The AP7387Q-30FDCW-7 employs a high-gain error amplifier with internal voltage reference and resistor network to maintain tight regulation across –40°C to +125°C ambient. Its fast transient response is enabled by optimized internal compensation and low-output-impedance architecture, minimizing VOUT undershoot/overshoot during rapid load steps from 10mA to 150mA.
Thermal protection activates at +150°C junction temperature with +30°C hysteresis, while current limit clamps output at ~250mA. The device operates without external compensation, requiring only 1µF input and 10µF ceramic output capacitors-both specified for X7R/X5R dielectrics and placement adjacent to VIN/VOUT/GND pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 60V - supports direct connection to automotive battery rails including cold-crank (6.5V) and load-dump (60V) events. |
| Output Voltage | 3.0V ±2% - factory-trimmed fixed output eliminates external feedback resistors and ensures MCU core logic compatibility. |
| Max Output Current | 150mA - sufficient for powering CAN/LIN transceivers, sensor interfaces, and low-power microcontrollers in distributed ECUs. |
| Dropout Voltage | 700mV @100mA - enables stable 3.0V output even when input drops to 3.7V, critical for start-stop system operation. |
| Quiescent Current | 2μA (typ.) - minimizes standby power loss in always-on domains like alarm controllers and telematics wake-up circuits. |
| PSRR | 70dB @1kHz - suppresses ripple from switching DC/DC stages upstream, preserving analog sensor signal integrity. |
| Thermal Shutdown | +150°C with +30°C hysteresis - prevents latch-up during sustained overload or poor PCB heatsinking in confined enclosures. |
Pinout & Package
AP7387Q-30FDCW-7 uses the U-DFN2020-6 (SWP) package (Type UXC), measuring 2.0mm × 2.0mm × 0.6mm with exposed thermal pad. This thermally enhanced leadless package achieves θJA = 47.9°C/W on JEDEC-standard board, enabling higher power dissipation than SOT89 in space-constrained automotive layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Regulated output | Delivers stable 3.0V supply; must be decoupled with ≥10µF ceramic capacitor placed adjacent to pin. |
| 2, 5 (GND) | Ground reference | Dual GND pins reduce impedance path; both must connect to low-impedance ground plane for stability and noise immunity. |
| 3 (VIN) | Input supply | Accepts 5–60V unregulated input; requires ≥1µF ceramic capacitor placed within 2mm of pin to suppress high-frequency noise. |
| 4, 6 (NC) | No-connect | Internally unconnected; recommended to tie to GND on PCB to maximize copper area for thermal conduction from EP. |
| EP (Exposed Pad) | Thermal interface | Not electrically functional; must be soldered to large GND copper pour (≥40mm²) to achieve rated θJA and prevent thermal derating. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range (5–60V) | Eliminates need for pre-regulator in 12V/24V/48V automotive architectures, reducing BOM count and failure points. |
| 2μA quiescent current | Enables >10-year battery life in vehicle security modules powered from backup coin cells or supercapacitors. |
| 70dB PSRR @1kHz | Reduces conducted EMI from buck converters feeding shared power rails, easing EMC compliance in infotainment head units. |
| AEC-Q100 Grade 1 | Qualified for operation from –40°C to +125°C ambient, meeting stringent reliability requirements for engine bay and transmission control units. |
| Integrated current limit & thermal shutdown | Provides autonomous fault recovery without external monitoring circuitry-critical for ASIL-B–compliant subsystems. |
Applications
| Automotive Body Control Module (BCM) | EV Battery Management System (BMS) Sensor Interface |
|---|---|
|
Use Scenario: Powering LIN transceivers and door-lock actuators in centralized BCMs with variable battery voltage (6–16V). IC Role / Device Role / Timing Role: Primary 3.0V LDO supplying communication PHY and microcontroller I/O domain. Use Value: Maintains regulation during cranking dips to 6.5V and load-dump spikes to 60V without reset or brownout. |
Use Scenario: Supplying isolated ADCs and temperature sensors in high-voltage battery packs (up to 900V bus). IC Role / Device Role / Timing Role: Secondary-side LDO providing clean 3.0V bias for precision analog front-ends. Use Value: 70dB PSRR rejects switching noise from isolated DC/DC converters, preserving <12-bit measurement accuracy. |
| Transmission Control Unit (TCU) | Automotive Head Unit Low-Power Domain |
|
Use Scenario: Powering gear-position sensors and solenoid drivers in transmission housings subject to vibration and thermal cycling. IC Role / Device Role / Timing Role: Local 3.0V regulator for sensor signal conditioning and CAN FD controller I/O. Use Value: AEC-Q100 qualification ensures 15-year field reliability; 2μA IQ extends sleep-mode duration between CAN wake events. |
Use Scenario: Supplying real-time clock (RTC), memory retention, and touch-controller logic during ignition-off state. IC Role / Device Role / Timing Role: Always-on LDO maintaining 3.0V rail for non-volatile configuration storage and wake-on-radio functions. Use Value: Ultra-low IQ prevents parasitic drain below 10μA total system leakage, satisfying OEM parking-current specs. |
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 |
|---|---|---|---|
| TLV73330PDBVR | 3.0V, 300mA, 1.8–5.5V input, 225mV dropout @300mA, no AEC-Q100 rating | Limited to 5.5V input; unsuitable for direct battery connection or load-dump conditions | Select only for low-voltage auxiliary rails where input is pre-regulated and automotive qualification is not required. |
| MAX1725EUT30+T | 3.0V, 200mA, 2.5–16V input, 300mV dropout @200mA, AEC-Q100 Grade 2 (–40°C to +105°C) | Narrower input range excludes 24V/48V HEV/EV use; lower temp grade limits under-hood deployment | Prefer for cost-sensitive cabin modules operating below 105°C ambient, but verify thermal margin at full load. |
Compared with TLV73330PDBVR and MAX1725EUT30+T, AP7387Q-30FDCW-7 uniquely combines 60V input tolerance, AEC-Q100 Grade 1 qualification, and 2μA quiescent current-making it the only viable choice for direct-battery-powered, always-on automotive subsystems requiring long-term reliability at extended temperature.
Availability
AP7387Q-30FDCW-7 is available at Aetrix Electronics and suitable for automotive body control modules, EV battery management sensor interfaces, and transmission control units requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for AP7387Q-30FDCW-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 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, designed specifically for direct-battery-connected subsystems demanding wide-input operation, ultra-low IQ, and AEC-Q100 compliance in harsh environments.
FAQ
What is the minimum input voltage required for regulation at 3.0V output?
The AP7387Q-30FDCW-7 maintains regulation down to VIN = VOUT + VDROP. With typical dropout of 700mV at 100mA, the minimum functional input is 3.7V. At light loads (1mA), dropout falls to ~350mV, allowing regulation from 3.35V-sufficient for post-cranking recovery in 12V systems.
Can the NC pins (4 and 6) be left floating on the PCB?
No. Pins 4 and 6 are internally unconnected but must be tied to GND on the PCB layout. This maximizes copper area beneath the package for thermal conduction from the exposed pad and improves ground return path integrity for noise suppression.
Is an external bypass capacitor required on the EN pin?
The AP7387Q-30FDCW-7 has no enable (EN) pin-it is always-on. There is no external control input; operation begins automatically when VIN exceeds the undervoltage lockout threshold (~4.5V). No bypass capacitor is needed or supported.
How does the thermal shutdown hysteresis affect system behavior during overload?
When junction temperature reaches +150°C, the device shuts down and remains off until temperature drops by +30°C (to +120°C), then resumes regulation. This prevents thermal oscillation during sustained overload and allows safe cooldown before re-engagement-critical for protecting downstream CAN transceivers during short-circuit faults.
AP7387Q-30FDCW-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):
- 3V
- 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-30FDCW-7 FAQ
1.How can I place an order for AP7387Q-30FDCW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7387Q-30FDCW-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-30FDCW-7 reliable?
The price and inventory of AP7387Q-30FDCW-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-30FDCW-7 is usually 5 days.
3.What payment methods are accepted for AP7387Q-30FDCW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7387Q-30FDCW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7387Q-30FDCW-7?
AP7387Q-30FDCW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7387Q-30FDCW-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-30FDCW-7?
For technical support, including AP7387Q-30FDCW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7387Q-30FDCW-7 requirements.
6.How does Aetrix verify that AP7387Q-30FDCW-7 is sourced from the original manufacturer or authorized distributors?
All AP7387Q-30FDCW-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-30FDCW-7 meets industry standards.
7.What is the process for return or replacement of AP7387Q-30FDCW-7?
All AP7387Q-30FDCW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7387Q-30FDCW-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-30FDCW-7 part is unused and in its original packaging.
Return procedure for AP7387Q-30FDCW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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