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Diodes Incorporated AP7375Q-50SP-13
- Part No.:
- AP7375Q-50SP-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP7375Q-50SP-13.pdf
- Description:
- LDOCMOSLOWCURRSO-8EPT&R2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:3,400
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Product details
Overview
AP7375Q-50SP-13 from Diodes Incorporated is an AEC-Q100 qualified automotive-grade 5.0V fixed-output ultra-low-dropout linear regulator with 45V max input voltage, 300mA output current capability, 2.1µA quiescent current, and integrated enable (EN) pin rated to 45V. It delivers fast transient response without overshoot during startup or short-circuit recovery and is used in body control modules and EV battery management systems where wide VIN range and low IQ are critical.
For engineers reviewing the AP7375Q-50SP-13 datasheet, AP7375Q-50SP-13 pinout, AP7375Q-50SP-13 application, or AP7375Q-50SP-13 equivalent, this part supports design of robust 5V power rails in automotive environments requiring ±2% output accuracy, 85dB PSRR at 1kHz, thermal shutdown, and short-circuit protection across -40°C to +125°C ambient operation.
Technical Context
The AP7375Q-50SP-13 implements a PMOS pass transistor architecture enabling ultra-low dropout (35mV @ 10mA, 350mV @ 100mA) and high PSRR (85dB @ 1kHz). Its EN pin accepts up to 45V, allowing direct connection to unregulated automotive battery rails without level-shifting.
Internal protection includes current limiting (500mA typical), thermal shutdown at +150°C with +10°C hysteresis, and robust ESD tolerance (3kV HBM, 1.5kV CDM). The device operates over 3V–45V input and maintains ±2% output voltage accuracy across load (1mA–300mA), line (VOUT+2V to 45V), and temperature (-40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures stable MCU/CAN transceiver supply without external feedback components. |
| 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 microcontrollers, sensors, and LIN/CAN interface ICs in body electronics. |
| Quiescent Current | 2.1µA typ - enables always-on subsystems (e.g., alarm controllers) to meet <100µA sleep-current targets. |
| Dropout Voltage | 350mV @ 100mA - allows regulation down to VIN = 5.35V, extending usable battery range in deep-discharge scenarios. |
| PSRR | 85dB @ 1kHz - suppresses alternator ripple and switching noise from adjacent DC/DC converters. |
| Thermal Shutdown | +150°C with +10°C hysteresis - prevents latch-up during sustained overload or poor PCB heatsinking. |
Pinout & Package
AP7375Q-50SP-13 is packaged in SO-8EP (exposed pad), a thermally enhanced 8-pin surface-mount package with 47.7°C/W θJA. The exposed pad (EP) must be connected to GND via large copper area for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply pin - accepts 3V–45V; requires 1µF ceramic decoupling capacitor placed adjacent to pin. |
| 2, 3, 4, 6 | GND | Ground reference - all four pins must be tied to system ground; pin 2 is primary GND for internal circuitry. |
| 5 | EN | Enable control - active-high logic; accepts 0–45V input; enables LDO when >1V, disables when <0.4V. |
| 7 | VOUT | Regulated 5.0V output - requires 10µF ceramic output capacitor (X7R/X5R) placed within 2mm of pin. |
| 8 | NC | No-connect - internally unconnected; recommended to tie to GND for mechanical stability and thermal conduction. |
| EP | Exposed Pad | Thermal path - not electrically functional; must be soldered to ≥100mm² GND copper pour for thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VIN range (3V–45V) | Eliminates need for pre-regulator in 12V/24V automotive systems facing cold-crank and load-dump transients. |
| 2.1µA quiescent current | Enables >1-year battery life in always-on vehicle access modules powered by 12V lead-acid batteries. |
| Fast transient response | Prevents undershoot/overshoot during 10mA↔300mA load steps - critical for noise-sensitive CAN/LIN bus interfaces. |
| AEC-Q100 Grade 1 qualification | Validated for operation from -40°C to +125°C junction temperature - meets requirements for under-hood and cabin ECUs. |
| Integrated protection | Combines current limit (500mA), thermal shutdown (+150°C), and short-circuit recovery - reduces external component count. |
Applications
| Automotive Body Control Module (BCM) | EV Battery Management System (BMS) Sensor Rail |
|---|---|
|
Use Scenario: Powering microcontroller, door lock actuators, and interior lighting drivers in centralized BCM. IC Role / Device Role / Timing Role: Primary 5V LDO supplying MCU core logic and I/O peripherals. Use Value: 45V input rating withstands load-dump events; 2.1µA IQ extends vehicle-off battery life; ±2% accuracy ensures reliable ADC reference stability. |
Use Scenario: Generating isolated 5V rail for temperature, voltage, and current sensor signal conditioning in high-voltage BMS stacks. IC Role / Device Role / Timing Role: Post-isolation regulated supply for analog front-end (AFE) ICs and isolated CAN transceivers. Use Value: 85dB PSRR rejects switching noise from nearby DC/DC converters; fast transient response prevents sensor data corruption during cell balancing events. |
| Transmission Control Unit (TCU) | Automotive Head Unit Power Sequencing |
|
Use Scenario: Providing clean 5V supply to TCU MCU and solenoid driver interface logic in harsh under-hood environments. IC Role / Device Role / Timing Role: Secondary regulated rail derived from main 12V battery, enabled only during engine runtime. Use Value: EN pin rated to 45V allows direct connection to switched battery rail; thermal shutdown prevents damage during prolonged stall conditions. |
Use Scenario: Sequenced 5V supply for infotainment SoC, display controller, and audio codec in head units with multi-rail power architecture. IC Role / Device Role / Timing Role: Standby rail activated early in boot sequence to initialize communication interfaces before main processor wake-up. Use Value: Ultra-low IQ minimizes standby power draw; fast startup (<1ms) ensures timely initialization of CAN/FlexRay buses during ignition-on transition. |
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 qualification, SOT-23-5 package. | Suitable only for post-regulated 5V rails in non-automotive or low-transient environments. | Select only if input is tightly regulated ≤6.5V and AEC-Q100 is not required. |
| TPS7B8750QKVURQ1 | Higher VIN max (40V), higher IQ (18µA), same AEC-Q100 Grade 1, 5-pin VSON package. | Lacks EN pin rated above 6V - requires external level-shifter for direct battery connection. | Prefer when board space is constrained and EN level-shifting is acceptable. |
Compared with TLV73350PDBVR and TPS7B8750QKVURQ1, AP7375Q-50SP-13 uniquely combines 45V EN pin tolerance, 2.1µA IQ, and AEC-Q100 qualification in a thermally optimized SO-8EP package - making it the only choice for direct-battery-fed 5V rails in demanding automotive modules.
Availability
AP7375Q-50SP-13 is available at Aetrix Electronics and suitable for automotive body control modules, EV battery management systems, transmission control units, and head unit power sequencing requiring stable component supply across extended temperature and voltage stress conditions.
Supply support for AP7375Q-50SP-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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, computing, and consumer markets.
The AP7375Q series belongs to Diodes' automotive-qualified LDO portfolio, designed specifically to replace legacy regulators in 12V/24V vehicle subsystems needing wide-input, ultra-low-IQ, and robust transient immunity.
FAQ
What is the maximum allowable input voltage for AP7375Q-50SP-13?
The absolute maximum input voltage is 55V, but the recommended operating range is 3V to 45V. Operation beyond 45V risks exceeding safe power dissipation limits and may trigger thermal shutdown. The 45V rating ensures compatibility with ISO 7637-2 Pulse 5a (load dump) tests in automotive applications.
Can the EN pin be directly connected to a 12V automotive battery?
Yes - the EN pin is rated for 0V to 55V, so it can be connected directly to the raw 12V battery rail without external resistive dividers or level shifters. This simplifies power sequencing in systems where the LDO must activate immediately upon ignition.
What output capacitor value is required for stable operation?
A minimum 10µF X7R or X5R ceramic capacitor is required on the VOUT pin, placed within 2mm of the pin. Lower ESR capacitors improve transient response, and increasing capacitance beyond 10µF further reduces undershoot during 300mA load steps.
Is AP7375Q-50SP-13 qualified for under-hood automotive use?
Yes - it is AEC-Q100 Grade 1 qualified (–40°C to +125°C junction temperature), PPAP-capable, and manufactured in IATF 16949 certified facilities. Its SO-8EP package with exposed pad provides adequate thermal performance for under-hood placement when mounted on ≥100mm² GND copper.
AP7375Q-50SP-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) 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:
- -
- 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
- Supplier Device Package:
- 8-SO-EP
AP7375Q-50SP-13 FAQ
1.How can I place an order for AP7375Q-50SP-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7375Q-50SP-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 AP7375Q-50SP-13 reliable?
The price and inventory of AP7375Q-50SP-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7375Q-50SP-13 is usually 5 days.
3.What payment methods are accepted for AP7375Q-50SP-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7375Q-50SP-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7375Q-50SP-13?
AP7375Q-50SP-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7375Q-50SP-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 AP7375Q-50SP-13?
For technical support, including AP7375Q-50SP-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7375Q-50SP-13 requirements.
6.How does Aetrix verify that AP7375Q-50SP-13 is sourced from the original manufacturer or authorized distributors?
All AP7375Q-50SP-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 AP7375Q-50SP-13 meets industry standards.
7.What is the process for return or replacement of AP7375Q-50SP-13?
All AP7375Q-50SP-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7375Q-50SP-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 AP7375Q-50SP-13 part is unused and in its original packaging.
Return procedure for AP7375Q-50SP-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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