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Diodes Incorporated AP7387Q-36Y-13
- Part No.:
- AP7387Q-36Y-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7387Q-36Y-13.pdf
- Description:
- IC REG LINEAR 3.6V 150MA SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,738
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Product details
Overview
AP7387Q-36Y-13 from Diodes Incorporated is an automotive-grade ultra-low-dropout linear regulator delivering 3.6V fixed output at up to 150mA, with 5V–60V input range, 700mV dropout @100mA, ±2% output accuracy, and 70dB PSRR @1kHz. It serves as a primary power supply for CAN/LIN transceivers and MCU cores in harsh-temperature automotive subsystems.
For engineers reviewing the AP7387Q-36Y-13 datasheet, AP7387Q-36Y-13 pinout, AP7387Q-36Y-13 application, or AP7387Q-36Y-13 equivalent, key selection criteria include wide-input capability under battery transients, thermal shutdown behavior at +150°C junction, low 2μA quiescent current for always-on modules, and AEC-Q100 qualification for body control units.
Technical Context
The AP7387Q-36Y-13 integrates a precision voltage reference, error amplifier, and current-limit/thermal-protection circuitry in a single monolithic IC. Its architecture enables fast line/load transient response-undershoot/overshoot limited to <50mV during 10mA→150mA load steps-with internal MOSFET pass device optimized for high PSRR and low quiescent current.
Designed for automotive environments, it operates across -40°C to +125°C ambient, supports input surges up to 80V (absolute max), and features short-circuit protection with 250mA current limit and thermal shutdown with +150°C trip point and +30°C hysteresis-critical for unregulated 12V/24V battery rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 60V - supports cold-crank (4.5V) and load-dump (60V+) conditions in 12V/24V automotive systems |
| Output Voltage | 3.6V fixed ±2% - meets MCU core and CAN transceiver VCC tolerance requirements without external feedback |
| Max Output Current | 150mA - sufficient for dual CAN/LIN transceivers plus low-power MCU sleep-mode operation |
| Dropout Voltage | 700mV @100mA - enables stable 3.6V output even at VIN = 4.3V during cranking |
| Quiescent Current | 2μA typical - minimizes standby power loss in always-on gateway or body controller modules |
| PSRR | 70dB @1kHz - suppresses alternator ripple and switching noise from adjacent DC/DC converters |
| Thermal Shutdown | +150°C trip with +30°C hysteresis - prevents latch-up during sustained overload or poor PCB heatsinking |
Pinout & Package
AP7387Q-36Y-13 is packaged in SOT89, a thermally enhanced 3-pin surface-mount package with exposed tab for PCB copper thermal spreading. The tab is electrically connected to GND and must be soldered to a large ground plane for optimal θJA = 78.6°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Supply | Accepts 5–60V unregulated input; requires 1µF ceramic decoupling placed within 2mm of pin |
| 2 (GND) | Ground Reference | Main signal and power return; connects internally to exposed tab; must tie to low-impedance system ground |
| 3 (VOUT) | Regulated Output | Delivers 3.6V ±2%; requires 10µF X7R/X5R ceramic capacitor placed adjacent to pin for stability |
Key Features
| Feature | Design Value |
|---|---|
| Wide Input Range (5–60V) | Enables direct connection to automotive battery rail without pre-regulation, eliminating external buck stage |
| Ultra-Low IQ (2μA) | Reduces parasitic drain on vehicle battery during ignition-off, extending module sleep time by >3× vs. standard LDOs |
| AEC-Q100 Qualified | Validated for Grade 1 (-40°C to +125°C) operation with PPAP documentation support for Tier-1 production |
| Fast Transient Response | Load step recovery within 200µs (10mA→150mA); limits voltage dip to <30mV-critical for real-time CAN timing integrity |
| Integrated Protection | Combines current limit (250mA), thermal shutdown (+150°C), and short-circuit foldback-no external fault-handling circuitry needed |
Applications
| Automotive Body Control Module (BCM) | EV Battery Management System (BMS) Sensor Interface |
|---|---|
|
Use Scenario: Powering microcontroller, LIN transceiver, and door-lock actuator drivers in centralized BCM. IC Role / Device Role / Timing Role: Primary 3.6V LDO supplying MCU core logic and LIN physical layer interface. Use Value: Maintains regulated output during 4.5V cold-crank and 60V load-dump events; 2μA IQ extends module sleep duration between wake pulses. |
Use Scenario: Biasing temperature sensors, cell voltage monitors, and isolation gate drivers in high-voltage BMS stacks. IC Role / Device Role / Timing Role: Isolated secondary-side LDO powering analog front-end and communication ICs downstream of isolated DC/DC. Use Value: 70dB PSRR rejects switching noise from isolated flyback converter; ±2% accuracy ensures sensor measurement fidelity. |
| Transmission Control Unit (TCU) | Automotive Head Unit (HU) Audio Subsystem |
|
Use Scenario: Supplying 3.6V to transmission ECU's CAN FD controller and solenoid driver bias circuits. IC Role / Device Role / Timing Role: High-reliability post-regulator after main 5V domain, ensuring CAN FD timing margin under EMI stress. Use Value: Fast line transient response (<2ms recovery from 12V→60V surge) preserves CAN FD bit timing integrity during alternator load dump. |
Use Scenario: Powering DSP, audio codec, and touch-controller ICs in infotainment head unit main board. IC Role / Device Role / Timing Role: Low-noise local regulator for sensitive analog audio paths and real-time DSP clock domains. Use Value: 70dB PSRR at 1kHz attenuates power-supply ripple from SMPS, reducing audible noise floor in amplified outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-dropout automotive regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73336PQDBVRQ1 | 3.6V, 300mA, 225mV dropout @150mA, 65dB PSRR @1kHz, 25μA IQ | Higher output current but higher IQ and lower PSRR; less robust against 60V load dump | Preferred where higher current headroom is required and input surges are clamped externally |
| MAX1725EUT36+T | 3.6V, 150mA, 400mV dropout @100mA, 60dB PSRR @1kHz, 3.5μA IQ, non-AEC-Q100 | Lacks AEC-Q100 qualification and thermal hysteresis; not suitable for production automotive ECUs | Only for prototyping or non-safety-critical industrial applications with identical voltage/current specs |
Compared with TLV73336PQDBVRQ1 and MAX1725EUT36+T, the AP7387Q-36Y-13 uniquely combines 60V input tolerance, AEC-Q100 Grade 1 rating, and 2μA quiescent current-making it the only choice for always-on, battery-critical automotive modules requiring long-term reliability under worst-case electrical stress.
Availability
AP7387Q-36Y-13 is available at Aetrix Electronics and suitable for automotive body control modules, EV battery management sensor interfaces, transmission control units, and infotainment head units requiring stable component supply across extended temperature and voltage stress conditions.
Supply support for AP7387Q-36Y-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 computing markets.
The AP7387Q series belongs to Diodes' automotive-qualified LDO portfolio, engineered specifically for direct-battery-connected modules needing wide-input operation, ultra-low IQ, and AEC-Q100 compliance in harsh-temperature environments.
FAQ
What is the maximum allowable input voltage for continuous operation?
The AP7387Q-36Y-13 is rated for continuous operation at up to 60V input per Recommended Operating Conditions. Its Absolute Maximum Rating allows 80V transient exposure for ≤100ms, making it suitable for automotive load-dump events when paired with appropriate input clamping or filtering.
Does this part require an external output capacitor, and what type is recommended?
Yes-an output capacitor is mandatory for stability. Diodes specifies a minimum 1µF ceramic capacitor with X7R or X5R dielectric characteristics. For optimal transient response and reduced undershoot, a 10µF X7R ceramic capacitor placed within 2mm of VOUT and GND pins is recommended per the datasheet layout guidelines.
How does the thermal shutdown function behave during overload conditions?
Thermal shutdown activates at +150°C junction temperature and holds the output disabled until the die cools by ≥30°C (hysteresis). During sustained overload, the device cycles on/off-limiting average power dissipation and preventing permanent damage while maintaining safe operating temperatures in properly heatsinked PCB layouts.
Is the SOT89 package lead-free and RoHS-compliant?
Yes-the AP7387Q-36Y-13 in SOT89 packaging is fully RoHS 3 compliant (2015/863/EU), lead-free, halogen-free, and antimony-free per Diodes' "Green" definition (<900ppm Br, <900ppm Cl, <1000ppm Sb), with matte tin-plated leads solderable per MIL-STD-202 Method 208.
AP7387Q-36Y-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):
- 60V
- Voltage - Output (Min/Fixed):
- 3.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.6V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 5 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- 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
AP7387Q-36Y-13 FAQ
1.How can I place an order for AP7387Q-36Y-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7387Q-36Y-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 AP7387Q-36Y-13 reliable?
The price and inventory of AP7387Q-36Y-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7387Q-36Y-13 is usually 5 days.
3.What payment methods are accepted for AP7387Q-36Y-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7387Q-36Y-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7387Q-36Y-13?
AP7387Q-36Y-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7387Q-36Y-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 AP7387Q-36Y-13?
For technical support, including AP7387Q-36Y-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7387Q-36Y-13 requirements.
6.How does Aetrix verify that AP7387Q-36Y-13 is sourced from the original manufacturer or authorized distributors?
All AP7387Q-36Y-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 AP7387Q-36Y-13 meets industry standards.
7.What is the process for return or replacement of AP7387Q-36Y-13?
All AP7387Q-36Y-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7387Q-36Y-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 AP7387Q-36Y-13 part is unused and in its original packaging.
Return procedure for AP7387Q-36Y-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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