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Diodes Incorporated AP7375Q-50FDCW-7
- Part No.:
- AP7375Q-50FDCW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP7375Q-50FDCW-7.pdf
- Description:
- LDO CMOS LOWCURR U-DFN2020-6/SWP
- Quantity:
- Payment:
- Shipping:
Inventory:4,611
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Product details
Overview
AP7375Q-50FDCW-7 from Diodes Incorporated is an automotive-grade 5.0V fixed-output, 300mA ultra-low-dropout linear regulator (ULDO) with 45V max input voltage, 2.1µA quiescent current, and AEC-Q100 qualification. It features EN pin rated to 45V, fast transient response, ±2% output accuracy, and integrated short-circuit/thermal shutdown protection. Designed for power rails in CAN/LIN transceivers and body control modules where wide VIN range and low IQ are critical.
For engineers reviewing the AP7375Q-50FDCW-7 datasheet, AP7375Q-50FDCW-7 pinout, AP7375Q-50FDCW-7 application, or AP7375Q-50FDCW-7 equivalent, this page delivers verified package mapping (U-DFN2020-6), validated pin functions (VIN/GND/VOUT/EN/NC/EP), thermal resistance (99.5°C/W), dropout behavior (350mV @100mA), and automotive compliance status - all confirmed from Diodes' official DS44818 Rev. 7-2.
Technical Context
The AP7375Q-50FDCW-7 implements a PMOS pass transistor architecture enabling 35mV dropout at 10mA and stable regulation across -40°C to +125°C ambient. Its EN pin accepts up to 45V directly, eliminating external level-shifting circuitry in high-voltage automotive domains.
Internal protection includes current limiting (500mA typ), thermal shutdown at +150°C with +10°C hysteresis, and 85dB PSRR at 1kHz - ensuring robust operation during load transients and battery dump events in EV/HEV systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures MCU core logic and CAN transceiver VCC meet ISO 11898-2 supply tolerance requirements. |
| Max Input Voltage | 45V - supports 24V commercial vehicle battery systems with 12V/24V dual-rail compatibility and load-dump immunity. |
| Quiescent Current | 2.1µA typ - enables always-on subsystems (e.g., door module wake-up circuits) to meet <100µA total system standby budget. |
| Dropout Voltage | 350mV @100mA - maintains regulation down to VIN = 5.35V, critical for cold-crank operation below 6V battery voltage. |
| PSRR | 85dB @1kHz - suppresses alternator ripple and switching noise from adjacent DC/DC converters feeding shared 12V bus. |
| Thermal Resistance | 99.5°C/W (θJA, U-DFN2020-6) - requires ≥100mm² exposed pad copper area for 300mA continuous operation at TA = +105°C. |
| Protection Features | Short-circuit limit (500mA), thermal shutdown (+150°C), and EN pin overvoltage tolerance (45V) - eliminate need for external fuse or TVS in cost-sensitive BCM designs. |
Pinout & Package
AP7375Q-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 RoHS-compliant NiPdAu plating. PCB layout requires connecting EP to GND via ≥4 thermal vias for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 5.0V output - connect 10µF ceramic capacitor (X7R/X5R) within 2mm of pin for transient stability. |
| 2 | VIN | Main input (3–45V) - route with ≥0.3mm trace width; place 1µF decoupling cap adjacent to pin. |
| 3 | GND | Analog/digital ground reference - tie directly to internal GND plane; avoid daisy-chaining with other ICs. |
| 4 | GND | Secondary ground terminal - reduces impedance path for high-frequency return currents. |
| 5 | EN | Enable control (0.4V low / >1V high) - accepts 45V logic; pull high via resistor to VIN for default-on operation. |
| 6 | NC | No internal connection - recommended to tie to GND for improved thermal conduction and EMI shielding. |
| EP | Exposed Pad | Thermal interface only - must be soldered to ≥100mm² GND copper area; not electrically functional as GND node. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VIN range (3–45V) | Eliminates need for pre-regulator in 24V truck/tractor ECUs facing 0–40V battery transients per ISO 16750-2. |
| 2.1µA quiescent current | Enables >10-year battery life in telematics modules powered by coin-cell backup during ignition-off state. |
| Fast line/load transient response | Prevents brownout resets in 32-bit MCUs during sudden 10–100mA load steps common in LIN gateway polling cycles. |
| AEC-Q100 Grade 1 qualified | Validated for -40°C to +125°C junction operation - meets automotive cabin and under-hood temperature requirements. |
| 85dB PSRR @1kHz | Maintains clean 5V rail despite 12V bus ripple from 150Hz alternator harmonics in start-stop systems. |
Applications
| Powering CAN Transceivers | Body Control Modules |
|---|---|
|
Use Scenario: Supplying isolated 5V power to TI SN65HVD230 or NXP TJA1042T CAN transceivers in door modules. IC Role / Device Role / Timing Role: Primary post-regulator delivering stable 5V VCC with <10mV ripple under 100mA burst loads during CAN frame transmission. Use Value: 350mV dropout ensures uninterrupted communication during cold-crank (VIN = 5.5V), while 2.1µA IQ extends battery-backed sleep mode duration. |
Use Scenario: Powering microcontrollers (e.g., Infineon AURIX TC275), LED drivers, and window motor controllers in centralized BCMs. IC Role / Device Role / Timing Role: Main 5V system rail generator with EN pin controlled by vehicle wake-up signal (LIN or CAN). Use Value: 45V EN tolerance allows direct connection to unregulated battery without level shifter; thermal shutdown prevents latch-up during motor stall faults. |
| EV Battery Management Systems | Transmission Control Units |
|
Use Scenario: Biasing analog front-end (AFE) ICs like ADI LTC6813-1 in 400V/800V EV battery packs requiring isolated 5V supplies. IC Role / Device Role / Timing Role: Secondary LDO after isolated DC/DC converter, providing low-noise 5V for precision ADC references and gate drivers. Use Value: 85dB PSRR rejects switching noise from upstream 1MHz flyback converters; ±2% accuracy ensures <0.1% SOC error in cell voltage measurement. |
Use Scenario: Powering 32-bit RISC-V or ARM Cortex-M7 MCUs (e.g., ST SPC58NG) and solenoid drivers in 8-speed automatic transmissions. IC Role / Device Role / Timing Role: High-reliability 5V rail source with fault reporting via EN pin status monitoring during gear-shift sequences. Use Value: Short-circuit protection limits fault energy during solenoid coil shorts; AEC-Q100 qualification guarantees 15-year field lifetime under vibration and thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | Lower VIN max (6.5V), higher IQ (45µA), no AEC-Q100 rating, SOT-23-5 package. | Restricted to 12V passenger car infotainment accessories; unsuitable for 24V commercial vehicles or under-hood use. | Select only for non-automotive, low-cost consumer applications where 45V tolerance and AEC-Q100 are unnecessary. |
| MAX1725EUK50+T | Higher dropout (500mV @300mA), lower PSRR (65dB @1kHz), no EN pin overvoltage tolerance, SOT-23-5. | Limited cold-crank margin (requires VIN ≥5.5V); inadequate for high-EMI environments near inverters or motors. | Use only when board space is constrained and thermal performance is secondary to footprint size. |
Compared with TLV73350PDBVR and MAX1725EUK50+T, AP7375Q-50FDCW-7 uniquely combines 45V input capability, AEC-Q100 qualification, and 2.1µA IQ in a thermally optimized 2×2mm DFN - making it the only choice for next-generation 24V/48V commercial vehicle electronics requiring zero design compromises on voltage range or reliability.
Availability
AP7375Q-50FDCW-7 is available at Aetrix Electronics and suitable for automotive head units, EV battery management systems, body control modules, and transmission control units requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AP7375Q-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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions, with IATF 16949-certified automotive production facilities and AEC-Q100-compliant product development processes.
The AP7375Q series belongs to Diodes' automotive power management portfolio, engineered specifically for wide-input, ultra-low-IQ regulation in harsh-temperature vehicle subsystems where reliability and regulatory compliance are non-negotiable.
FAQ
What is the maximum allowable input voltage for AP7375Q-50FDCW-7?
The absolute maximum input voltage is 55V, but the recommended operating range is 3.0V to 45V per DS44818 Rev. 7-2. Operation above 45V risks exceeding safe power dissipation limits in the U-DFN2020-6 package, especially at elevated ambient temperatures. The 45V upper limit ensures reliable thermal performance across the full -40°C to +125°C junction temperature range.
Does AP7375Q-50FDCW-7 require external capacitors, and what values are mandatory?
Yes: a minimum 1µF ceramic input capacitor (X7R/X5R) between VIN and GND, and a minimum 10µF ceramic output capacitor (X7R/X5R) between VOUT and GND are required for stability and transient response. These must be placed within 2mm of their respective pins. Larger values improve load-step immunity but do not affect basic regulation functionality.
How does the EN pin function, and what voltage levels enable/disable the device?
The EN pin enables the regulator when pulled to ≥1V (typical threshold) and disables it when ≤0.4V (typical). It tolerates up to 45V, allowing direct connection to unregulated battery without external resistive dividers. When disabled, quiescent current drops to <1µA, and VOUT enters high-impedance state with no reverse current flow.
Is AP7375Q-50FDCW-7 qualified for automotive use, and what certifications does it hold?
Yes: AP7375Q-50FDCW-7 is AEC-Q100 Grade 1 qualified (-40°C to +125°C), PPAP-capable, and manufactured in IATF 16949-certified facilities. It meets RoHS 3, halogen-free, and antimony-free "Green" standards per Diodes' definitions, with full traceability and change-control documentation available upon request.
AP7375Q-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):
- 45V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.4V @ 300mA
- Current - Output:
- 350mA
- Current - Quiescent (Iq):
- 8 µA
- Current - Supply (Max):
- -
- PSRR:
- 85dB (1kHz)
- Control Features:
- Current Limit, Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- U-DFN2020-6 (SWP) (Type UXC)
AP7375Q-50FDCW-7 FAQ
1.How can I place an order for AP7375Q-50FDCW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7375Q-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 AP7375Q-50FDCW-7 reliable?
The price and inventory of AP7375Q-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 AP7375Q-50FDCW-7 is usually 5 days.
3.What payment methods are accepted for AP7375Q-50FDCW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7375Q-50FDCW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7375Q-50FDCW-7?
AP7375Q-50FDCW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7375Q-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 AP7375Q-50FDCW-7?
For technical support, including AP7375Q-50FDCW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7375Q-50FDCW-7 requirements.
6.How does Aetrix verify that AP7375Q-50FDCW-7 is sourced from the original manufacturer or authorized distributors?
All AP7375Q-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 AP7375Q-50FDCW-7 meets industry standards.
7.What is the process for return or replacement of AP7375Q-50FDCW-7?
All AP7375Q-50FDCW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7375Q-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 AP7375Q-50FDCW-7 part is unused and in its original packaging.
Return procedure for AP7375Q-50FDCW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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