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Diodes Incorporated AP7375Q-30WR-7
- Part No.:
- AP7375Q-30WR-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7375Q-30WR-7.pdf
- Description:
- LDO CMOS LOWCURR SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:1,131
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Product details
Overview
AP7375Q-30WR-7 from Diodes Incorporated is an AEC-Q100 qualified automotive-grade 3.0V fixed-output ultra-low-dropout linear regulator (LDO) with 45V max input voltage, 300mA output current capability, and 2.1µA quiescent current. It features enable control up to 45V, ±2% output accuracy, and integrated short-circuit/thermal shutdown protection. Designed for body control modules and EV battery management systems where wide VIN range and low IQ are critical.
For engineers reviewing the AP7375Q-30WR-7 datasheet, AP7375Q-30WR-7 pinout, AP7375Q-30WR-7 application, or AP7375Q-30WR-7 equivalent, key selection criteria include dropout voltage at 100mA (350mV typ), PSRR of 85dB at 1kHz, thermal resistance in SOT25-WR package (135.5°C/W), and EN pin voltage tolerance up to 45V.
Technical Context
The AP7375Q-30WR-7 implements a PMOS pass transistor architecture enabling ultra-low dropout and fast transient response without external compensation. Its EN pin accepts up to 45V directly, eliminating level-shifting circuitry in high-voltage automotive domains.
Internal protection includes current limiting at 500mA and thermal shutdown at +150°C with +10°C hysteresis. The device maintains stable regulation across -40°C to +125°C ambient, meeting IATF 16949 production requirements for automotive electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2% - ensures MCU core logic compatibility without external feedback network |
| Input Voltage Range | 3V to 45V - supports cold-crank (4.5V) and load-dump (40V+) conditions in 12V/24V automotive systems |
| Max Output Current | 300mA - sufficient for powering CAN transceivers, LIN nodes, and microcontroller peripherals |
| Quiescent Current | 2.1µA typ - enables always-on subsystems with minimal battery drain during vehicle sleep mode |
| Dropout Voltage | 350mV @ 100mA - allows operation down to 3.35V input while maintaining regulated 3.0V output |
| PSRR | 85dB @ 1kHz - suppresses alternator ripple and switching noise from adjacent DC/DC converters |
| Thermal Resistance θJA | 135.5°C/W (SOT25-WR) - defines maximum power dissipation (1.1W) before thermal shutdown under still-air conditions |
Pinout & Package
AP7375Q-30WR-7 is packaged in SOT25 (Package Code: WR), a 5-pin surface-mount package with exposed pad for thermal enhancement. Pin 1 is NC (not connected internally); pins 2–4 are GND; pin 5 is EN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | Not connected internally; connect to GND on PCB to maximize thermal copper area |
| 2, 3, 4 | GND | Common ground return path for input, output, and internal circuitry; multiple pins reduce trace impedance |
| 5 | EN | Enable input accepting 0–45V logic levels; active-high with 0.4V low threshold ensures robust start-up in noisy environments |
Key Features
| Feature | Design Value |
|---|---|
| Wide VIN range (3–45V) | Eliminates need for pre-regulator in 24V commercial vehicle and HEV battery monitoring circuits |
| Fast line/load transient response | Prevents undershoot/overshoot during ECU wake-up or CAN bus arbitration bursts without external compensation |
| Integrated short-circuit protection | Limits output current to ~500mA during fault, preventing damage to PCB traces and upstream fuses |
| AEC-Q100 Grade 1 qualification | Validated for operation from -40°C to +125°C junction temperature in safety-critical body electronics |
| Halogen- and antimony-free "Green" construction | Meets automotive OEM material compliance requirements (<900ppm Br/Cl, <1000ppm Sb) |
Applications
| Powering MCUs and CAN/LIN Transceivers | Automotive Head Units |
|---|---|
Use Scenario: Supplying 3.0V to ARM Cortex-M7 microcontrollers and ISO 11898-2 CAN transceivers in gateway ECUs. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, low-noise 3.0V rail with fast transient recovery during CAN frame transmission. Use Value: 85dB PSRR at 1kHz attenuates 12V bus ripple, ensuring reliable CAN bit timing and reducing bit error rate. | Use Scenario: Powering audio DSPs, display controllers, and touch interface ICs in infotainment head units. IC Role / Device Role / Timing Role: Low-noise local LDO providing stable 3.0V for analog audio stages and high-speed digital interfaces. Use Value: 120µVrms output noise prevents audible hiss in Class D amplifier inputs and avoids display flicker. |
| EV and HEV Battery Management Systems | Body Control Modules |
Use Scenario: Biasing cell monitor ICs (e.g., BQ769x2) and isolated ADCs in 400V/800V battery packs. IC Role / Device Role / Timing Role: High-input-voltage LDO stepping down auxiliary 12V supply to 3.0V for precision sensing circuitry. Use Value: 45V absolute max input withstands load-dump transients without external TVS, simplifying front-end protection. | Use Scenario: Powering door module MCUs, window motor drivers, and LED lighting controllers. IC Role / Device Role / Timing Role: Always-on LDO supplying 3.0V to real-time clock and CAN wake-up circuitry during vehicle sleep. Use Value: 2.1µA quiescent current extends battery life beyond ISO 19453-3 requirements for 10-year parasitic draw limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73330PDBVR | Lower VIN max (5.5V), higher IQ (45µA), no AEC-Q100 qualification | Restricted to low-voltage interior modules only; unsuitable for engine bay or battery monitoring | Select only for non-automotive industrial use where 45V input is not required |
| TPS7B8733QKVURQ1 | Higher dropout (400mV@300mA), larger SO-PowerPAD package, 3.3V fixed output | Requires board redesign for 3.3V vs 3.0V; better thermal performance but less flexible VIN range | Choose when higher output current margin (500mA) and lower θJA (40°C/W) outweigh fixed 3.3V requirement |
Compared with TLV73330PDBVR and TPS7B8733QKVURQ1, the AP7375Q-30WR-7 uniquely balances 45V input tolerance, 2.1µA IQ, and AEC-Q100 qualification in a compact SOT25 package-making it optimal for space-constrained, high-reliability automotive subsystems requiring 3.0V rails.
Availability
AP7375Q-30WR-7 is available at Aetrix Electronics and suitable for automotive body control modules, EV battery management systems, and infotainment head units requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AP7375Q-30WR-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 AP7375Q series belongs to Diodes' automotive-qualified LDO portfolio, designed specifically for demanding vehicle subsystems where wide input range, ultra-low quiescent current, and AEC-Q100 compliance are mandatory.
FAQ
What is the minimum input voltage required for AP7375Q-30WR-7 to regulate 3.0V output?
The AP7375Q-30WR-7 requires VIN ≥ VOUT + VDROP(MAX). At 100mA load, typical dropout is 350mV, so minimum functional VIN is 3.35V. However, per Recommended Operating Conditions, minimum VIN is specified as 3.0V - meaning the device enters regulation only when input exceeds the dropout threshold above nominal output, verified across -40°C to +125°C.
Can the EN pin be driven directly from a 24V microcontroller GPIO?
Yes. The EN pin accepts voltages from 0V to 45V and has a guaranteed high-level threshold of 1V (typical) and low-level threshold of 0.4V (max). A 24V GPIO can drive EN directly without level-shifting, provided series current-limiting resistance is used to limit EN pin current to <10µA per datasheet recommendations.
Does AP7375Q-30WR-7 require an external capacitor on the EN pin?
No. The EN pin has no specified capacitance requirement. It is a CMOS-compatible digital input with internal hysteresis. Adding external capacitance may slow enable/disable timing and is unnecessary unless intentional debouncing is needed - which is not recommended due to potential startup delay in safety-critical systems.
How does thermal performance differ between SOT25-WR and U-DFN2020-6 packages?
SOT25-WR has θJA = 135.5°C/W, while U-DFN2020-6 (FDCW) has θJA = 99.5°C/W - a 27% improvement. However, SOT25-WR offers larger solderable pad area and easier rework. For 300mA loads at 12V input, power dissipation is ~2.7W; U-DFN2020-6 reduces junction rise by ~27°C over SOT25-WR under identical PCB layout conditions.
AP7375Q-30WR-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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):
- 3V
- 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
- 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:
- SOT-25
AP7375Q-30WR-7 FAQ
1.How can I place an order for AP7375Q-30WR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7375Q-30WR-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-30WR-7 reliable?
The price and inventory of AP7375Q-30WR-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-30WR-7 is usually 5 days.
3.What payment methods are accepted for AP7375Q-30WR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7375Q-30WR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7375Q-30WR-7?
AP7375Q-30WR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7375Q-30WR-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-30WR-7?
For technical support, including AP7375Q-30WR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7375Q-30WR-7 requirements.
6.How does Aetrix verify that AP7375Q-30WR-7 is sourced from the original manufacturer or authorized distributors?
All AP7375Q-30WR-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-30WR-7 meets industry standards.
7.What is the process for return or replacement of AP7375Q-30WR-7?
All AP7375Q-30WR-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7375Q-30WR-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-30WR-7 part is unused and in its original packaging.
Return procedure for AP7375Q-30WR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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