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Diodes Incorporated AP7375Q-30SP-13
- Part No.:
- AP7375Q-30SP-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP7375Q-30SP-13.pdf
- Description:
- LDOCMOSLOWCURRSO-8EPT&R2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:2,445
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Product details
Overview
AP7375Q-30SP-13 from Diodes Incorporated is an automotive-grade 3.0V fixed-output, 300mA ultra-low-dropout linear regulator with 45V max input voltage, 2.1µA quiescent current, and AEC-Q100 qualification. It features EN pin rated to 45V, ±2% output accuracy, 85dB PSRR at 1kHz, and integrated short-circuit/thermal shutdown protection. Designed for power-sensitive automotive subsystems including CAN/LIN transceivers and body control modules.
For engineers reviewing the AP7375Q-30SP-13 datasheet, AP7375Q-30SP-13 pinout, AP7375Q-30SP-13 application, or AP7375Q-30SP-13 equivalent, key selection criteria include wide VIN (3–45V), low IQ (2.1µA typ), fast transient response without overshoot, thermal robustness in SO-8EP package, and automotive PPAP capability.
Technical Context
The AP7375Q-30SP-13 employs a PMOS pass transistor architecture enabling ultra-low dropout (35mV @ 10mA, 350mV @ 100mA) and high PSRR (85dB @ 1kHz). Its enable circuit accepts up to 45V, eliminating level-shifting needs in 12V/24V/42V automotive systems.
Internal protection includes current limiting (500mA typ), thermal shutdown at +150°C with +10°C hysteresis, and ESD ratings of ±1.5kV CDM / 3kV HBM. The SO-8EP package provides θJA = 47.7°C/W and exposed pad for enhanced thermal dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2% - ensures stable MCU core/logic rail without external feedback. |
| Max Input Voltage | 45V - supports direct connection to automotive battery rails including load-dump transients. |
| Quiescent Current | 2.1µA typ - enables always-on functionality in low-power sleep modes (e.g., BCM wake-up circuits). |
| Dropout Voltage | 350mV @ 100mA - maintains regulation down to VIN = 3.35V, critical for cold-crank operation. |
| 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. |
| EN Pin Voltage Range | 0.4V (disable) to 45V (enable) - allows direct microcontroller GPIO or high-side switch control without external resistors. |
Pinout & Package
AP7375Q-30SP-13 is packaged in SO-8EP (exposed pad), offering superior thermal performance (θJA = 47.7°C/W) versus SOT89 or SOT25. The exposed pad must be connected to GND for optimal thermal dissipation and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply pin - accepts 3V to 45V; requires 1µF ceramic decoupling close to pin. |
| 2, 3, 4, 6 | GND | Ground return paths - pins 2/3/4 are signal GND; pin 6 is dedicated GND; all must connect to low-impedance ground plane. |
| 5 | EN | Enable control - logic-high (>1V) enables output; logic-low (<0.4V) disables output and reduces IQ to <1µA. |
| 7 | VOUT | Regulated 3.0V output - requires 10µF ceramic capacitor (X7R/X5R) placed adjacent to pin for stability and transient response. |
| 8 | NC | No internal connection - recommended to tie to GND for improved thermal conduction via PCB copper. |
| EP | Exposed Pad | Thermal & electrical ground - must be soldered to large GND copper area; not a functional signal pin. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VIN range (3–45V) | Eliminates need for pre-regulator in 12V/24V/42V automotive architectures, reducing BOM count and board space. |
| 2.1µA quiescent current | Enables >10-year battery life in always-on vehicle modules (e.g., door handle sensors, telematics backup power). |
| No output overshoot at startup/short-circuit recovery | Prevents voltage spikes that could damage downstream logic or cause MCU brown-out resets in safety-critical ECUs. |
| AEC-Q100 Grade 1 (−40°C to +125°C) | Validated for under-hood and cabin applications requiring full automotive temperature compliance and PPAP documentation. |
| SO-8EP thermal resistance (θJA = 47.7°C/W) | Supports 300mA continuous output at TA = +105°C with minimal heatsinking - suitable for compact head unit designs. |
Applications
| Powering MCUs and CAN/LIN Transceivers | Automotive Head Units |
|---|---|
|
Use Scenario: Supplying 3.0V to ARM Cortex-M7 MCU and ISO 11898-2 CAN transceiver in infotainment domain controller. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, low-noise 3.0V rail with fast line/load transient response to maintain CAN bit timing integrity. Use Value: 85dB PSRR at 1kHz attenuates alternator ripple; 350mV dropout ensures operation during 6.5V cold-crank events without brown-out. |
Use Scenario: Powering display driver ICs, audio codecs, and touch controller in centralized head unit with multi-rail power architecture. IC Role / Device Role / Timing Role: Secondary LDO generating isolated 3.0V for analog front-end circuits requiring low noise and precise voltage accuracy. Use Value: ±2% output accuracy guarantees consistent ADC reference and DAC performance; 120µVrms output noise avoids audible artifacts in Class D amplifiers. |
| EV/HEV Battery Management Systems | Body Control Modules |
|
Use Scenario: Providing bias voltage to isolated current-sense amplifiers and cell monitoring ICs in 400V/800V battery packs. IC Role / Device Role / Timing Role: High-voltage-tolerant LDO powering isolated gate drivers and communication interfaces in high-side sensing circuits. Use Value: 45V-rated EN pin enables direct control from microcontroller in high-side configuration; 2.1µA IQ minimizes standby drain on auxiliary 12V battery. |
Use Scenario: Regulating 3.0V for LIN transceiver and microcontroller in door module controlling window lift, mirror fold, and lock actuation. IC Role / Device Role / Timing Role: Always-on LDO maintaining real-time clock and wake-up interrupt circuitry during vehicle sleep mode. Use Value: Ultra-low 2.1µA quiescent current meets ISO 19453-3 requirements for <20µA total module sleep current; AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73330PDBVR | Lower VIN max (5.5V), higher IQ (45µA), no AEC-Q100 rating, SOT-23-5 package. | Limited to 12V systems only; unsuitable for load-dump or cold-crank conditions; lacks automotive qualification. | Select only for non-automotive industrial applications where input voltage never exceeds 5.5V and qualification is not required. |
| TPS7B8233QDGNRQ1 | Same 45V VIN, but lower IOUT (150mA), higher dropout (400mV @ 100mA), AEC-Q100 Grade 0 (−40°C to +150°C). | Insufficient current for 300mA MCU + transceiver loads; tighter thermal spec enables under-hood placement but sacrifices output capability. | Choose when junction temperature may exceed +125°C and 150mA output suffices - e.g., sensor nodes with minimal processing load. |
Compared with TLV73330PDBVR and TPS7B8233QDGNRQ1, AP7375Q-30SP-13 uniquely balances 45V input tolerance, 300mA output, 2.1µA IQ, and AEC-Q100 Grade 1 - making it the only option qualified for mainstream automotive body/head unit applications requiring full cold-crank support and long-term reliability.
Availability
AP7375Q-30SP-13 is available at Aetrix Electronics and suitable for automotive head units, body control modules, EV battery management systems, and transmission control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP7375Q-30SP-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 series belongs to Diodes' automotive-qualified LDO portfolio, engineered specifically for demanding vehicle subsystems requiring wide-input operation, ultra-low quiescent current, and AEC-Q100 compliance under harsh thermal and electrical conditions.
FAQ
What is the minimum input voltage required for AP7375Q-30SP-13 to regulate 3.0V output?
The device requires VIN ≥ VOUT + VDROP(MAX). At 100mA load, VDROP is 580mV (max), so minimum VIN is 3.58V. At light loads (1mA), dropout drops to ~35mV, allowing regulation from 3.035V. However, per datasheet Note 6, full internal operation begins only when VIN ≥ VOUT + VDROP(MAX), which is 3.0V + 1.4V = 4.4V at 300mA.
Can the EN pin be driven directly by a 3.3V microcontroller GPIO without external components?
Yes. The EN pin has a logic-low threshold of ≤0.4V and logic-high threshold of ≥1V. A 3.3V GPIO output exceeds the 1V minimum high-level requirement and remains well below the 45V absolute maximum, enabling direct interface without level shifters or resistive dividers.
How does the SO-8EP package improve thermal performance compared to SOT25?
SO-8EP achieves θJA = 47.7°C/W due to its exposed pad and larger copper footprint, while SOT25 has θJA = 135.5°C/W. This 65% reduction in thermal resistance allows AP7375Q-30SP-13 to deliver full 300mA at +105°C ambient, whereas SOT25 would require derating to ~100mA under identical conditions.
Is the 10µF output capacitor mandatory, or can smaller values be used?
The datasheet specifies 10µF as the recommended minimum for stability and transient response. Using less than 10µF risks oscillation or excessive undershoot/overshoot during load steps. Ceramic X7R/X5R capacitors are required; tantalum or aluminum electrolytics are not recommended due to ESR and aging effects.
AP7375Q-30SP-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):
- 3V
- 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-30SP-13 FAQ
1.How can I place an order for AP7375Q-30SP-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7375Q-30SP-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-30SP-13 reliable?
The price and inventory of AP7375Q-30SP-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-30SP-13 is usually 5 days.
3.What payment methods are accepted for AP7375Q-30SP-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7375Q-30SP-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7375Q-30SP-13?
AP7375Q-30SP-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7375Q-30SP-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-30SP-13?
For technical support, including AP7375Q-30SP-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7375Q-30SP-13 requirements.
6.How does Aetrix verify that AP7375Q-30SP-13 is sourced from the original manufacturer or authorized distributors?
All AP7375Q-30SP-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-30SP-13 meets industry standards.
7.What is the process for return or replacement of AP7375Q-30SP-13?
All AP7375Q-30SP-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7375Q-30SP-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-30SP-13 part is unused and in its original packaging.
Return procedure for AP7375Q-30SP-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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