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Diodes Incorporated AP7315Q-15W5-7
- Part No.:
- AP7315Q-15W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7315Q-15W5-7.pdf
- Description:
- IC REG LINEAR 1.5V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,835
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Product details
Overview
AP7315Q-15W5-7 from Diodes Incorporated is an automotive-grade 150mA low-dropout linear regulator with fixed 1.5V output, ±1% accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 35µA quiescent current. It features enable control, operates from 1.7V to 5.25V input, and is qualified to AEC-Q100 Grade 1 for use in ADAS camera power rails and infotainment domain controllers.
For engineers reviewing the AP7315Q-15W5-7 datasheet, AP7315Q-15W5-7 pinout, AP7315Q-15W5-7 application, or AP7315Q-15W5-7 equivalent, this page delivers verified technical context, validated pin functions, automotive-specific operating limits, and real-world selection guidance for noise-sensitive LDO deployment in vehicle electronics.
Technical Context
The AP7315Q-15W5-7 uses a CMOS-based LDO architecture with internal voltage reference and error amplifier feedback loop, delivering stable 1.5V output across -40°C to +125°C ambient. Its enable input (EN) provides precise on/off control with 0–0.5V logic-low shutdown threshold and 1.3–5.25V logic-high activation range.
It achieves 0.38V typical dropout at 150mA load (for VOUT = 1.5V), supports fast load transient response (<100µs settling), and integrates short-circuit foldback protection limiting output current to 55mA during VOUT-to-GND fault. Thermal shutdown activates above +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% - ensures stable core voltage for 1.5V logic domains without external feedback components. |
| Max Output Current | 150mA continuous - sufficient for powering single-core microcontrollers or sensor signal chains in automotive modules. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding infotainment or ADAS subsystems. |
| Output Noise | 60µVrms (10Hz–100kHz) - enables clean analog supply for RF receivers and high-resolution ADCs in camera modules. |
| Quiescent Current | 35µA typical - minimizes standby power loss in always-on vehicle networks like CAN wake-up circuits. |
| Input Voltage Range | 1.7V to 5.25V - compatible with 3.3V and 5V intermediate rails, including post-regulated battery-supplied domains. |
| Dropout Voltage | 0.38V typ. @ 150mA - allows operation down to ~1.88V input while maintaining regulated 1.5V output in cold-cranking conditions. |
Pinout & Package
SOT25 (5-pin) package with matte tin-plated leads, moisture sensitivity level 1 per J-STD-020, and 0.016g mass. Pin 4 is NC (no connection); all other pins are electrically active and require proper PCB layout per Diodes' recommended pad dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Power Input | Accepts 1.7–5.25V unregulated input; requires ≥0.47µF ceramic decoupling capacitor placed adjacent to pin. |
| 2 GND | Ground Reference | Primary return path for input/output current; must connect directly to low-impedance ground plane to maintain PSRR and stability. |
| 3 EN | Enable Control | Active-high logic input; drives regulator ON when ≥1.3V, OFF when ≤0.5V; must not float-tie to VIN if unused. |
| 4 NC | No Connection | Internally unconnected; no PCB trace or solder mask opening required; leave floating per datasheet. |
| 5 VOUT | Regulated Output | Delivers 1.5V ±1% to load; requires ≥0.47µF ceramic output capacitor placed within 2mm of pin and GND. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for operation from -40°C to +125°C ambient, supporting PPAP documentation and IATF 16949 manufacturing. |
| Low-noise regulation | 60µVrms output noise enables direct powering of RF front-ends and precision analog sensors without additional filtering. |
| High PSRR at audio frequencies | 75dB rejection at 1kHz mitigates ripple from buck converters supplying shared 3.3V/5V rails in multi-rail ECUs. |
| Ultra-low quiescent current | 35µA IQ allows >10-year battery life in always-on telematics modules powered by backup coin cells or supercaps. |
| Fast transient response | Settles within 100µs after 1mA ↔ 150mA load step, preserving voltage integrity during burst-mode MCU operation. |
Applications
| Infotainment Power Supply | ADAS Camera Module |
|---|---|
|
Use Scenario: Powers audio codec, touch controller, and display interface ICs in head-unit systems requiring clean 1.5V bias. IC Role / Device Role / Timing Role: Primary LDO for low-noise digital core rail, replacing discrete regulators with higher noise and lower PSRR. Use Value: Eliminates need for external LC filters by delivering 60µVrms noise and 75dB PSRR, reducing BOM count and PCB area. |
Use Scenario: Supplies image signal processor (ISP) core voltage in rear-view or surround-view camera ECU. IC Role / Device Role / Timing Role: Stable 1.5V source for ISP logic domain, synchronized with MIPI CSI-2 clocking requirements. Use Value: Maintains ±1% output accuracy over temperature and line variation, preventing ISP timing skew or frame corruption. |
| Automotive Wireless Communication | Body Control Module (BCM) |
|
Use Scenario: Provides regulated 1.5V to Bluetooth LE or UWB transceiver baseband processors in keyless entry systems. IC Role / Device Role / Timing Role: Low-IQ LDO enabling ultra-low-power sleep mode while retaining fast wake-up capability via EN pin. Use Value: 35µA quiescent current extends battery life in passive entry fobs; EN pin allows host MCU to gate power precisely. |
Use Scenario: Powers window motor driver logic and LIN transceiver in door module with strict EMC and thermal constraints. IC Role / Device Role / Timing Role: Secondary LDO for isolated logic rail, decoupled from noisy 12V-to-5V conversion stage. Use Value: SOT25 footprint and 179°C/W θJA allow thermal compliance in sealed plastic housings without heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7315Q-15W5-7 (this part) | Fixed 1.5V, no output discharge, SOT25, AEC-Q100 Grade 1 | Optimized for cost-sensitive, non-discharge-required 1.5V domains (e.g., ISP cores, BLE baseband) | Select when output discharge is unnecessary and lowest BOM cost is prioritized. |
| AP7315DQ-15W5-7 | Same specs except integrated 30Ω auto-discharge FET on VOUT | Required where rapid VOUT decay prevents latch-up in hot-swap or sequencing-critical systems (e.g., domain controllers) | Choose only if system-level power sequencing mandates sub-10ms VOUT discharge after EN deactivation. |
Compared with AP7315DQ-15W5-7, this part eliminates discharge circuitry to reduce leakage and cost, making it preferable for static 1.5V loads; versus generic commercial LDOs, its AEC-Q100 qualification and guaranteed -40°C to +125°C performance ensure reliability in under-hood environments.
Availability
AP7315Q-15W5-7 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and wireless communication systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for AP7315Q-15W5-7 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 devices, with design centers across Asia, Europe, and the US, and ISO/TS 16949-certified wafer fabs and assembly facilities.
The AP7315Q series belongs to Diodes' Automotive Power Management product line, engineered specifically for noise-sensitive, high-reliability vehicle subsystems including ADAS, body electronics, and infotainment, with emphasis on PSRR, low noise, and AEC-Q100 conformance.
FAQ
What is the minimum input voltage required for AP7315Q-15W5-7 to maintain regulation at full 150mA load?
The minimum input voltage is calculated as VOUT + VDROP = 1.5V + 0.49V = 1.99V (max dropout at 150mA for 1.5V variant). At room temperature, typical dropout is 0.38V, so 1.88V input sustains regulation. Below 1.7V, the device falls outside recommended operating conditions and may cease regulation.
Can AP7315Q-15W5-7 be used without connecting the EN pin?
Yes, but only if tied directly to VIN to ensure permanent enable. Leaving EN floating violates absolute maximum ratings and risks erratic behavior or damage due to undefined logic state. The datasheet explicitly states EN "must not be floating" and specifies 0–0.5V for shutdown and 1.3–5.25V for activation.
Does AP7315Q-15W5-7 include thermal shutdown protection?
Yes, it incorporates thermal shutdown that activates when junction temperature exceeds +150°C. Recovery occurs once TJ drops below +135°C (typical hysteresis). This protection is independent of current limit and operates even during light-load conditions where power dissipation is low but ambient temperature is extreme.
Is the SOT25 package of AP7315Q-15W5-7 lead-free and RoHS compliant?
Yes, it 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). Matte tin plating meets MIL-STD-202 Method 208 solderability requirements, and moisture sensitivity is rated Level 1 per J-STD-020.
AP7315Q-15W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.49V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- 100 µA
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7315Q-15W5-7 FAQ
1.How can I place an order for AP7315Q-15W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7315Q-15W5-7 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 AP7315Q-15W5-7 reliable?
The price and inventory of AP7315Q-15W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315Q-15W5-7 is usually 5 days.
3.What payment methods are accepted for AP7315Q-15W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315Q-15W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7315Q-15W5-7?
AP7315Q-15W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7315Q-15W5-7 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 AP7315Q-15W5-7?
For technical support, including AP7315Q-15W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315Q-15W5-7 requirements.
6.How does Aetrix verify that AP7315Q-15W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7315Q-15W5-7 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 AP7315Q-15W5-7 meets industry standards.
7.What is the process for return or replacement of AP7315Q-15W5-7?
All AP7315Q-15W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315Q-15W5-7, 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 AP7315Q-15W5-7 part is unused and in its original packaging.
Return procedure for AP7315Q-15W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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