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Diodes Incorporated AP7387Q-50Y-13
- Part No.:
- AP7387Q-50Y-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7387Q-50Y-13.pdf
- Description:
- IC REG LINEAR 5V 150MA SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,217
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Product details
Overview
AP7387Q-50Y-13 from Diodes Incorporated is an automotive-grade ultra-low-dropout linear regulator delivering 5.0V fixed output at up to 150mA, with 60V max input voltage, 700mV dropout @100mA, ±2% output accuracy, and 70dB PSRR @1kHz - designed for power-supplying CAN/LIN transceivers and MCU peripherals in harsh automotive environments.
For engineers reviewing the AP7387Q-50Y-13 datasheet, AP7387Q-50Y-13 pinout, AP7387Q-50Y-13 application, or AP7387Q-50Y-13 equivalent, this part supports AEC-Q100 qualification, thermal shutdown, short-circuit protection, and wide-input operation in SOT89 packaging - critical for body control modules and EV battery management systems requiring high reliability under load transients.
Technical Context
The AP7387Q-50Y-13 integrates a precision voltage reference, error amplifier, and current-limit circuit within a monolithic IC architecture optimized for fast line/load transient response - demonstrated by <2ms recovery time under 10mA→100mA load steps and minimal VOUT undershoot/overshoot in head-unit power rails.
Its internal thermal shutdown triggers at +150°C with +30°C hysteresis, while the 2μA quiescent current enables always-on functionality in low-power automotive subsystems; the device operates across -40°C to +125°C ambient temperature with IATF 16949-certified manufacturing and PPAP capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 60V - supports direct connection to automotive battery (12V/24V/48V) and withstands load-dump transients up to 60V without external clamping. |
| Output Voltage | 5.0V ±2% - tight regulation ensures stable logic-level supply for 5V-tolerant MCUs and CAN transceivers without post-regulation trimming. |
| Max Output Current | 150mA - sufficient to power multiple low-power peripherals (e.g., LIN transceiver + sensor interface + watchdog IC) from single LDO. |
| Dropout Voltage | 700mV @100mA (typ.) - enables regulation down to VIN = 5.7V, preserving functionality during cold-crank conditions where battery dips to ~6V. |
| Quiescent Current | 2μA (typ.) - minimizes standby power loss in always-on domains such as vehicle entry systems and remote keyless entry receivers. |
| PSRR | 70dB @1kHz - suppresses switching noise from DC-DC converters upstream, preventing interference in analog sensor signal chains. |
| Thermal Shutdown | +150°C activation with +30°C hysteresis - prevents latch-up during sustained overload or poor PCB thermal design while enabling automatic recovery. |
Pinout & Package
SOT89 package: 3-pin surface-mount outline with exposed tab (GND-connected), footprint optimized for thermal dissipation on 2oz copper layers; JEDEC-standardized mechanical dimensions (4.5mm × 2.5mm × 1.5mm height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Supply Terminal | Accepts 5–60V unregulated input; requires 1µF ceramic decoupling capacitor placed adjacent to minimize high-frequency noise coupling. |
| 2 (GND) | Ground Reference | Main ground return path; must connect directly to low-impedance PCB ground plane to ensure stability and accurate load regulation. |
| 3 (VOUT) | Regulated Output | Delivers 5.0V ±2% output; requires 10µF X7R/X5R ceramic capacitor near pin to maintain phase margin and damp load transients. |
| TAB | Exposed Thermal Pad | Internally connected to GND; must be soldered to ≥100mm² copper area for θJA = 78.6°C/W thermal performance and reliable 150mA operation. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Input Range (5–60V) | Eliminates need for pre-regulator stages in 12V/24V/48V automotive architectures, reducing BOM count and board space. |
| Ultra-Low Quiescent Current (2μA) | Enables >10-year battery life in always-on vehicle security modules powered by backup coin cells or supercapacitors. |
| Fast Load Transient Response | Stabilizes output within 2ms after 10mA→150mA step change - preserves MCU clock integrity during CAN frame bursts or sensor polling cycles. |
| AEC-Q100 Qualified & PPAP Capable | Validated for Grade 1 (-40°C to +125°C) operation with full traceability, enabling use in safety-critical body electronics without additional qualification effort. |
| Integrated Protection Functions | Combines current limit (250mA typ.), short-circuit shutdown, and thermal foldback - removes need for external fuses or thermal sensors in compact ECUs. |
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 5V rail regulator supplying logic and communication peripherals with low-noise, high-PSRR output. Use Value: Maintains stable 5V under cold-crank (6V battery) and load-dump (60V surge) conditions while consuming only 2μA in sleep mode. |
Use Scenario: Supplying isolated ADCs, temperature sensors, and cell-monitoring ICs in high-voltage battery packs. IC Role / Device Role / Timing Role: Local LDO providing clean 5V bias for precision analog front-ends adjacent to noisy high-side switches. Use Value: 70dB PSRR at 1kHz rejects switching noise from adjacent DC-DC converters, ensuring <0.02%/mA load regulation for accurate voltage sensing. |
| Automotive Head Unit Power Rail | Transmission Control Unit (TCU) MCU Core Supply |
|
Use Scenario: Generating auxiliary 5V rail for display controller, audio codec, and USB PHY in infotainment head units. IC Role / Device Role / Timing Role: Secondary LDO regulating post-DC-DC converter output to meet EMI-sensitive analog circuit requirements. Use Value: Fast line transient response (<2ms recovery) prevents display flicker or audio pop during ignition switch transitions. |
Use Scenario: Delivering regulated 5V to TCU's main MCU core and CAN FD transceiver in engine bay-mounted controllers. IC Role / Device Role / Timing Role: High-reliability LDO operating continuously at +105°C ambient with thermal shutdown fallback. Use Value: AEC-Q100 Grade 1 qualification and IATF 16949 manufacturing ensure zero field failures over 15-year vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-dropout automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | Lower max input (6.5V), higher IQ (45μA), no AEC-Q100 rating, SOT-23-5 package. | Limited to 12V-only systems; unsuitable for load-dump immunity or extended temperature operation. | Select only for non-automotive industrial designs where cost and size outweigh transient robustness. |
| NCP163AMX50T2G | 6V max input, 250mA output, AEC-Q100 Grade 2, 12μA IQ, DFN-8 package. | Cannot support 24V/48V battery architectures or 60V transients; higher quiescent current reduces battery life. | Use when higher output current is required but input range is constrained to ≤6V and Grade 2 temp range suffices. |
Compared with TLV73350PDBVR and NCP163AMX50T2G, the AP7387Q-50Y-13 uniquely combines 60V input tolerance, AEC-Q100 Grade 1 qualification, and 2μA quiescent current - making it the only viable choice for 48V EV subsystems requiring long-term reliability under extreme thermal and electrical stress.
Availability
AP7387Q-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 under AEC-Q100-compliant production programs.
Supply support for AP7387Q-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 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 demanding vehicle subsystems requiring wide-input operation, ultra-low IQ, and robust fault protection in compact SOT89 and U-DFN packages.
FAQ
What is the maximum allowable input voltage for AP7387Q-50Y-13?
The absolute maximum input voltage is 80V per datasheet Absolute Maximum Ratings, but recommended operating range is 5V to 60V. Operation above 60V risks exceeding safe power dissipation limits and triggering thermal shutdown, especially at high ambient temperatures or with insufficient PCB copper area for heat sinking.
Does AP7387Q-50Y-13 require an external output capacitor, and what type is recommended?
Yes - a minimum 10µF ceramic capacitor with X7R or X5R dielectric is required for stability and transient response. The capacitor must be placed within 2mm of VOUT and GND pins; larger values (e.g., 22µF) further reduce output ripple and improve load-step recovery, as verified in typical characteristics graphs on page 9 of DS45169 Rev. 2-2.
How does the thermal shutdown function behave during continuous overload?
When junction temperature reaches +150°C, the device disables the pass transistor and holds VOUT at 0V until temperature drops by ≥30°C (hysteresis), then automatically resumes regulation. This cycle repeats if overload persists, preventing permanent damage while maintaining functional safety in fault conditions per ISO 26262 ASIL-B system assumptions.
Is AP7387Q-50Y-13 compatible with lead-free reflow profiles?
Yes - it is fully RoHS 3 compliant with matte tin-plated leads and rated for JEDEC Level 1 moisture sensitivity. The SOT89 package supports standard lead-free reflow profiles up to 260°C peak temperature for 10 seconds, as confirmed in Mechanical Data section of DS45169 Rev. 2-2.
AP7387Q-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):
- 60V
- Voltage - Output (Min/Fixed):
- 5V
- 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-50Y-13 FAQ
1.How can I place an order for AP7387Q-50Y-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7387Q-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 AP7387Q-50Y-13 reliable?
The price and inventory of AP7387Q-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 AP7387Q-50Y-13 is usually 5 days.
3.What payment methods are accepted for AP7387Q-50Y-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7387Q-50Y-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7387Q-50Y-13?
AP7387Q-50Y-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7387Q-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 AP7387Q-50Y-13?
For technical support, including AP7387Q-50Y-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7387Q-50Y-13 requirements.
6.How does Aetrix verify that AP7387Q-50Y-13 is sourced from the original manufacturer or authorized distributors?
All AP7387Q-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 AP7387Q-50Y-13 meets industry standards.
7.What is the process for return or replacement of AP7387Q-50Y-13?
All AP7387Q-50Y-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7387Q-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 AP7387Q-50Y-13 part is unused and in its original packaging.
Return procedure for AP7387Q-50Y-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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