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Diodes Incorporated AP7375Q-30Y-13
- Part No.:
- AP7375Q-30Y-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7375Q-30Y-13.pdf
- Description:
- LDO CMOS LOWCURR SOT89 T&R 2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:2,464
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Product details
Overview
AP7375Q-30Y-13 from Diodes Incorporated is an AEC-Q100 qualified automotive-grade 3.0V fixed-output low-dropout linear regulator (LDO) with 45V max input voltage, 300mA output current capability, 2.1µA quiescent current, and ±2% output voltage accuracy. It features enable control up to 45V, fast transient response, short-circuit protection, and thermal shutdown-designed for power management in harsh automotive environments such as body control modules and battery management systems.
For engineers reviewing the AP7375Q-30Y-13 datasheet, AP7375Q-30Y-13 pinout, AP7375Q-30Y-13 application, or AP7375Q-30Y-13 equivalent, key selection criteria include wide VIN range (3–45V), ultra-low IQ (2.1µA), dropout performance at 300mA load, EN pin voltage tolerance, and AEC-Q100 qualification for automotive use.
Technical Context
The AP7375Q-30Y-13 implements a PMOS pass transistor architecture enabling low dropout voltage (350mV @ 100mA) and high PSRR (85dB @ 1kHz). Its EN pin accepts up to 45V directly, eliminating external level-shifting circuitry in high-voltage automotive supply rails.
Internal protection includes current limiting (500mA typical), thermal shutdown at +150°C with +10°C hysteresis, and robust ESD ratings (3kV HBM, 1.5kV CDM). The device operates across –40°C to +125°C ambient temperature and supports stable regulation with 1µF input and 10µF ceramic output capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2% - ensures precise MCU core or CAN transceiver rail without external feedback. |
| Input Voltage Range | 3V to 45V - supports direct connection to automotive battery (cold crank, load dump) without pre-regulation. |
| Max Output Current | 300mA - sufficient for powering microcontrollers, sensors, and LIN/CAN transceivers in distributed ECUs. |
| Quiescent Current | 2.1µA (typ) - enables always-on functionality in low-power sleep modes (e.g., body controller wake-up circuits). |
| Dropout Voltage | 350mV @ 100mA - maintains regulation down to VIN = 3.35V, critical during cold-crank conditions. |
| PSRR | 85dB @ 1kHz - suppresses ripple from switching DC/DC stages upstream, improving analog sensor or ADC reference stability. |
| Thermal Shutdown | +150°C with +10°C hysteresis - prevents latch-up during sustained overload or poor PCB thermal design. |
Pinout & Package
SOT89 package (3-pin, exposed tab for thermal dissipation); compact footprint ideal for space-constrained automotive modules. Pin 1 = VIN, Pin 2 = GND, Pin 3 = VOUT.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply pin; rated for –0.3V to +55V - withstands automotive load dump transients without external clamping. |
| 2 | GND | Power ground reference; connects to PCB ground plane to minimize noise coupling and improve thermal conduction via exposed tab. |
| 3 | VOUT | Regulated 3.0V output; requires 10µF ceramic capacitor placed adjacent to pin for transient stability and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| 45V Input Tolerance | Enables direct integration into 24V/48V commercial vehicle systems and eliminates need for external TVS or pre-LDO protection. |
| EN Pin Voltage Range | Accepts 0–45V logic-level enable signal - simplifies interface with microcontroller GPIO or high-side switch drivers. |
| Fast Transient Response | No overshoot during startup or short-circuit recovery - avoids brown-out resets in safety-critical MCU domains. |
| AEC-Q100 Qualification | Qualified per Grade 1 (–40°C to +125°C) with PPAP support - meets OEM requirements for production automotive electronics. |
| Lead-Free & Halogen-Free | Fully RoHS 3 and "Green" compliant (<900ppm Br/Cl, <1000ppm Sb) - satisfies global environmental compliance mandates. |
Applications
| Automotive Body Control Module | EV Battery Management System |
|---|---|
Use Scenario: Powering microcontroller, door lock actuators, and interior lighting drivers in centralized body control units. IC Role / Device Role / Timing Role: Primary 3.0V LDO supplying MCU I/O and peripheral logic; provides clean, stable rail during ignition cycling and load dump events. Use Value: Ultra-low 2.1µA quiescent current extends battery life in parked state; 45V input rating eliminates need for discrete overvoltage protection. | Use Scenario: Regulating auxiliary power for cell monitoring ICs and isolation gate drivers in high-voltage battery packs. IC Role / Device Role / Timing Role: Post-regulator delivering 3.0V to analog front-end and communication interfaces (e.g., isolated SPI, CAN FD PHY). Use Value: High PSRR (85dB @ 1kHz) rejects switching noise from isolated DC/DC converters; thermal shutdown prevents fault propagation in confined pack enclosures. |
| CAN/LIN Transceiver Power | Transmission Control Unit |
Use Scenario: Supplying 3.0V bias to CAN FD or LIN physical layer transceivers in engine bay or chassis modules. IC Role / Device Role / Timing Role: Dedicated low-noise LDO for transceiver VCC; decoupled with local 10µF ceramic cap to maintain signal integrity under EMI stress. Use Value: Fast line/load transient response prevents bit errors during bus arbitration; ±2% output accuracy ensures reliable recessive-dominant voltage thresholds. | Use Scenario: Providing regulated 3.0V to transmission microcontroller, solenoid drivers, and position sensor interfaces. IC Role / Device Role / Timing Role: Main system LDO supporting real-time control loop timing and watchdog circuitry in ASIL-B functional domains. Use Value: AEC-Q100 qualification and thermal hysteresis ensure reliability under continuous high-temperature operation (>105°C ambient); EN pin allows safe power sequencing with main MCU. |
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 max input (5.5V), lower IQ (350nA), no AEC-Q100 rating, SOT-23-5 package. | Restricted to 12V systems only; unsuitable for load dump or cold-crank conditions. | Select only for non-automotive, low-voltage, ultra-low-power applications where 45V tolerance is unnecessary. |
| TPS7B8733QKVURQ1 | Higher IQ (18µA), wider temp range (–40°C to +150°C), same 45V input, 300mA output, but larger SO-PowerPAD package. | Better thermal performance in high-power-density designs; higher IQ reduces battery drain in always-on nodes. | Prefer when junction temperature exceeds 125°C or when PCB layout allows larger thermal pad area. |
Compared with TLV73330PDBVR and TPS7B8733QKVURQ1, the AP7375Q-30Y-13 uniquely balances ultra-low IQ (2.1µA), 45V input tolerance, AEC-Q100 qualification, and SOT89 compactness-making it optimal for cost-sensitive, space-constrained automotive modules requiring long-term battery standby and robust transient immunity.
Availability
AP7375Q-30Y-13 is available at Aetrix Electronics and suitable for automotive body control modules, EV battery management systems, and transmission control units requiring stable component supply across extended temperature ranges and stringent automotive qualification.
Supply support for AP7375Q-30Y-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
The AP7375Q belongs to Diodes' automotive-qualified LDO family, designed specifically to meet AEC-Q100 Grade 1 requirements and support robust power delivery in electric vehicles, ADAS subsystems, and body electronics.
FAQ
What is the minimum input voltage required for regulation at 3.0V output?
The AP7375Q-30Y-13 requires VIN ≥ 3.0V to operate, but stable regulation begins when VIN exceeds VOUT by the dropout voltage. At 100mA load, dropout is 350mV (typ), so minimum functional VIN is 3.35V. Below this, output voltage drops linearly with input.
Can the EN pin be driven directly from a 3.3V microcontroller GPIO?
Yes-the EN pin has a logic threshold of 1V (high) and 0.4V (low), and accepts voltages up to 45V. A 3.3V GPIO fully satisfies the high-level enable condition without series resistance or level shifting, simplifying control interface design.
Is an external output capacitor mandatory, and what type is recommended?
Yes-an output capacitor is mandatory for stability. Diodes specifies a minimum 1µF ceramic capacitor (X5R or X7R dielectric), with 10µF recommended for optimal transient response. Place it within 2mm of VOUT and GND pins using short, wide traces to minimize ESL and ensure loop stability.
Does AP7375Q-30Y-13 require a heatsink in SOT89 package at full 300mA load?
No dedicated heatsink is required, but thermal performance depends on PCB copper area. With 1in² of 2oz copper connected to the exposed tab, θJA is ~94.5°C/W. At 300mA and 12V input (ΔV = 9V), power dissipation is 2.7W-resulting in ~256°C junction rise above ambient. Therefore, derating or enhanced copper layout is essential; maximum continuous 300mA load requires careful thermal design.
AP7375Q-30Y-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- 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:
- 300mA
- 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-89-3
AP7375Q-30Y-13 FAQ
1.How can I place an order for AP7375Q-30Y-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7375Q-30Y-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-30Y-13 reliable?
The price and inventory of AP7375Q-30Y-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-30Y-13 is usually 5 days.
3.What payment methods are accepted for AP7375Q-30Y-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7375Q-30Y-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7375Q-30Y-13?
AP7375Q-30Y-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7375Q-30Y-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-30Y-13?
For technical support, including AP7375Q-30Y-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7375Q-30Y-13 requirements.
6.How does Aetrix verify that AP7375Q-30Y-13 is sourced from the original manufacturer or authorized distributors?
All AP7375Q-30Y-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-30Y-13 meets industry standards.
7.What is the process for return or replacement of AP7375Q-30Y-13?
All AP7375Q-30Y-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7375Q-30Y-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-30Y-13 part is unused and in its original packaging.
Return procedure for AP7375Q-30Y-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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