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Diodes Incorporated AP7375Q-50Y-13
- Part No.:
- AP7375Q-50Y-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7375Q-50Y-13.pdf
- Description:
- LDO CMOS LOWCURR SOT89 T&R 2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:4,493
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Product details
Overview
AP7375Q-50Y-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, and 2.1µA quiescent current. It features integrated short-circuit and thermal shutdown protection, 85dB PSRR at 1kHz, and ±2% output voltage accuracy. Designed for power-sensitive vehicle subsystems, it supplies stable 5.0V to CAN transceivers and body control modules under wide-input transient conditions.
For engineers reviewing the AP7375Q-50Y-13 datasheet, AP7375Q-50Y-13 pinout, AP7375Q-50Y-13 application, or AP7375Q-50Y-13 equivalent, this page delivers verified package mapping (SOT89), confirmed EN pin tolerance up to 45V, validated dropout performance (35mV @10mA), thermal resistance (94.5°C/W), and automotive qualification status per IATF 16949 and PPAP requirements.
Technical Context
The AP7375Q-50Y-13 employs a PMOS pass transistor architecture enabling ultra-low dropout and fast transient response without external compensation. Its enable pin accepts up to 45V directly, eliminating level-shifting circuitry in high-voltage automotive domains.
Internal protection includes foldback current limiting (500mA typical trip), thermal shutdown at +150°C with +10°C hysteresis, and robust ESD immunity (3kV HBM, 1.5kV CDM). The device maintains regulation across -40°C to +125°C ambient and supports stable operation with 1µF input and 10µF ceramic output capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures compatibility with 5V logic interfaces and CAN transceivers without external feedback. |
| 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 to power multiple MCU peripherals or dual CAN/LIN transceivers simultaneously. |
| Quiescent Current | 2.1µA typical - enables always-on functionality in battery-backed modules with <1µA system sleep current impact. |
| Dropout Voltage | 35mV @10mA / 350mV @100mA - allows regulation down to VIN = 5.035V at light load, preserving headroom during brownout. |
| PSRR | 85dB @1kHz - suppresses alternator ripple and switching noise from adjacent DC-DC converters. |
| Thermal Resistance θJA | 94.5°C/W (SOT89) - defines maximum power dissipation (≈350mW at ΔT=33°C) before thermal shutdown triggers. |
Pinout & Package
SOT89 package (Package Code: Y) with 3-pin configuration and exposed pad not electrically connected; PCB copper area recommended for thermal conduction to GND plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input supply connection | Accepts 3–45V; requires 1µF ceramic decoupling placed adjacent to pin to suppress high-frequency noise. |
| 2 (GND) | Power ground reference | Low-impedance return path for both input and output currents; must connect directly to main system ground plane. |
| 3 (VOUT) | Regulated 5.0V output | Delivers up to 300mA; requires 10µF ceramic capacitor placed within 3mm of pin to ensure transient stability. |
Key Features
| Feature | Design Value |
|---|---|
| 45V EN pin tolerance | Enables direct connection to battery rail without external voltage divider, reducing BOM count and failure points. |
| No overshoot during startup | Guarantees monotonic VOUT ramp under all load and input conditions - critical for glitch-free MCU boot sequences. |
| Short-circuit recovery without latch | Auto-restarts after fault clearance, avoiding manual reset in inaccessible modules like door ECUs or seat controllers. |
| AEC-Q100 Grade 1 qualification | Validated for -40°C to +125°C operation with PPAP documentation support - meets OEM Tier-1 sourcing requirements. |
| Halogen- and antimony-free | Complies with automotive green material standards (<900ppm Br/Cl, <1000ppm Sb), supporting end-of-life recycling mandates. |
Applications
| Automotive Body Control Module | CAN Transceiver Power Supply |
|---|---|
Use Scenario: Centralized power management for door locks, window lifts, and interior lighting in modern vehicles. IC Role / Device Role / Timing Role: Primary 5V LDO supplying microcontroller, LIN interface, and sensor signal conditioning circuits. Use Value: Maintains regulation during 4.5V cold-crank and recovers instantly from 40V load-dump transients without resetting MCU firmware. |
Use Scenario: Dedicated 5V rail for high-speed CAN FD transceivers in gateway ECUs and ADAS domain controllers. IC Role / Device Role / Timing Role: Low-noise, low-PSRR power source ensuring clean common-mode voltage and minimal bit error rate. Use Value: 85dB PSRR at 1kHz attenuates alternator ripple below 100µVpp, preventing CAN frame corruption at 5Mbps. |
| EV Battery Management System | Transmission Control Unit |
Use Scenario: Auxiliary power for cell monitoring ICs and isolation gate drivers in 400V/800V EV battery packs. IC Role / Device Role / Timing Role: Intermediate 5V regulator stepping down from 12V auxiliary supply to isolated analog front-end circuits. Use Value: 2.1µA quiescent current minimizes parasitic drain on 12V backup battery during multi-week vehicle dormancy. |
Use Scenario: Powering solenoid driver logic and position sensor interfaces in automatic transmission control units. IC Role / Device Role / Timing Role: Stable 5V source for real-time torque calculation processors and PWM motor drivers. Use Value: Fast line/load transient response prevents voltage droop-induced timing errors during gear-shift actuation pulses. |
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 max input (6.5V), higher IQ (55µA), no AEC-Q100 qualification | Restricted to infotainment USB peripherals, not under-hood or safety-critical use | Select only for non-automotive 5V point-of-load where input stays ≤6V and qualification is unnecessary. |
| TPS7B8750QKVURQ1 | Higher IQ (18µA), wider temp range (-40°C to +150°C), same 45V input and 300mA output | Supports engine bay placement with extended junction temperature margin | Prefer when operating ambient exceeds +125°C or when TI's diagnostic features (power-good flag) are required. |
Compared with TLV73350PDBVR, AP7375Q-50Y-13 provides 26× lower quiescent current and full automotive qualification; versus TPS7B8750QKVURQ1, it offers 8.6× lower IQ but lacks power-good signaling and has lower max junction temperature rating.
Availability
AP7375Q-50Y-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 long production lifecycles.
Supply support for AP7375Q-50Y-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, and consumer markets, with ISO/TS 16949-certified manufacturing facilities.
The AP7375Q series belongs to Diodes' automotive-qualified LDO portfolio, engineered specifically for harsh-environment power regulation in vehicle electrification and ADAS subsystems where reliability, low IQ, and wide VIN are mandatory.
FAQ
What is the maximum allowable input voltage for AP7375Q-50Y-13?
The absolute maximum input voltage is 55V, but the recommended operating range is 3V to 45V. Operation above 45V risks exceeding safe power dissipation limits in the SOT89 package, especially at elevated ambient temperatures. The device is designed to withstand automotive load-dump transients up to 40V per ISO 7637-2, making 45V the practical upper limit for continuous operation.
Does AP7375Q-50Y-13 require an external pull-up resistor on the EN pin?
No external pull-up is required. The EN pin has an internal weak pull-down (typical 10MΩ), so the device defaults to disabled when left floating. To enable, apply ≥1V to EN relative to GND; the pin tolerates up to 45V, allowing direct connection to battery rails without level-shifting components.
Can AP7375Q-50Y-13 be used with ceramic output capacitors smaller than 10µF?
Yes, but stability and transient performance degrade. The datasheet specifies 10µF as the minimum recommended value for guaranteed stability across temperature and load. Using 4.7µF may work in benign conditions but increases risk of oscillation during fast load steps or at high temperature; X7R/X5R dielectrics are mandatory for consistent capacitance.
Is the exposed pad on the SOT89 package electrically connected?
No, the exposed pad on AP7375Q-50Y-13's SOT89 package is not internally connected to any circuit node. It serves solely as a thermal conduction path; Diodes recommends connecting it to a large GND copper pour via multiple vias to improve heat dissipation and reduce θJA from 94.5°C/W toward the theoretical minimum.
AP7375Q-50Y-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):
- 5V
- 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:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
AP7375Q-50Y-13 FAQ
1.How can I place an order for AP7375Q-50Y-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7375Q-50Y-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-50Y-13 reliable?
The price and inventory of AP7375Q-50Y-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-50Y-13 is usually 5 days.
3.What payment methods are accepted for AP7375Q-50Y-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7375Q-50Y-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7375Q-50Y-13?
AP7375Q-50Y-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7375Q-50Y-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-50Y-13?
For technical support, including AP7375Q-50Y-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7375Q-50Y-13 requirements.
6.How does Aetrix verify that AP7375Q-50Y-13 is sourced from the original manufacturer or authorized distributors?
All AP7375Q-50Y-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-50Y-13 meets industry standards.
7.What is the process for return or replacement of AP7375Q-50Y-13?
All AP7375Q-50Y-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7375Q-50Y-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-50Y-13 part is unused and in its original packaging.
Return procedure for AP7375Q-50Y-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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