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Diodes Incorporated AP7315Q-30W5-7
- Part No.:
- AP7315Q-30W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7315Q-30W5-7.pdf
- Description:
- IC REG LINEAR 3V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,985
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Product details
Overview
AP7315Q-30W5-7 from Diodes Incorporated is an automotive-grade 150mA low-dropout linear regulator with fixed 3.0V 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-30W5-7 datasheet, AP7315Q-30W5-7 pinout, AP7315Q-30W5-7 application, or AP7315Q-30W5-7 equivalent, this page delivers verified technical context, validated SOT25 pin mapping, real-world automotive use cases, and confirmed alternative LDOs with documented functional differences.
Technical Context
The AP7315Q-30W5-7 uses a CMOS-based LDO architecture with internal voltage reference and error amplifier to maintain tight regulation across load (0–150mA) and line (1.7–5.25V) variations. Its enable logic requires EN ≥1.3V to activate and EN ≤0.5V to enter shutdown, drawing only 0.01µA in standby.
It achieves 75dB ripple rejection at 1kHz due to high-loop-gain compensation and supports stable operation with 0.47µF ceramic output capacitors. Dropout voltage is 0.21–0.29V at 150mA for VOUT = 3.0V, enabling efficient operation in battery-supplied 3.3V/5V systems where headroom is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±1% - ensures precise rail generation for 3.0V logic, sensors, and RF ICs without external feedback. |
| Max Output Current | 150mA continuous - sufficient for powering single-core microcontrollers, CAN transceivers, or image sensor bias circuits. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC/DC converters in automotive power domains. |
| Output Noise | 60µVrms (10Hz–100kHz) - enables clean supply for analog front-ends and RF receivers in ADAS cameras. |
| Quiescent Current | 35µA typical - minimizes battery drain during vehicle sleep mode while maintaining fast wake-up capability. |
| Dropout Voltage | 0.21V at 150mA - allows operation down to 3.21V input, supporting wide-range 12V battery-derived 3.3V/5V intermediate rails. |
| Operating Temp | −40°C to +125°C junction - meets under-hood and cabin temperature requirements per AEC-Q100 Grade 1. |
Pinout & Package
SOT25 (5-pin small-outline transistor) package with matte tin-plated leads, moisture sensitivity level 1, 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 | Main power input; must be decoupled with ≥0.47µF ceramic capacitor placed adjacent to pin to prevent instability during load transients. |
| 2 | GND | Analog/digital ground reference; requires low-impedance connection to system ground plane to minimize noise coupling and thermal resistance. |
| 3 | EN | Active-high enable; drives regulator ON when ≥1.3V, OFF when ≤0.5V; must not float-tie to VIN if unused. |
| 4 | NC | No internal connection; left unconnected on PCB; no routing or copper fill required. |
| 5 | VOUT | Regulated 3.0V output; requires local 0.47µF ceramic capacitor near pin to ensure stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C operation in automotive environments, supporting PPAP documentation and IATF 16949 manufacturing. |
| Low-noise 60µVrms output | Enables direct powering of noise-sensitive analog components (e.g., camera ISP cores, RF synthesizers) without additional filtering. |
| High PSRR (75dB @ 1kHz) | Rejects ripple from buck converters feeding the LDO input, critical for maintaining signal integrity in mixed-signal ADAS modules. |
| Ultra-low 35µA quiescent current | Reduces standby power loss in always-on automotive subsystems such as telematics and body control modules. |
| Enable-controlled shutdown | Allows system-level power sequencing and deep-sleep management via microcontroller GPIO, reducing total system current to <1µA. |
Applications
| Infotainment Power Supplies | Automotive RF Supply |
|---|---|
Use Scenario: Powering audio DSPs, touchscreen controllers, and Bluetooth/Wi-Fi SoCs in head-unit designs. IC Role / Device Role / Timing Role: Primary 3.0V LDO delivering clean, regulated voltage to digital and mixed-signal ICs with strict noise budgets. Use Value: Maintains ±1% output accuracy across temperature and load, ensuring consistent performance of timing-critical audio codecs and wireless PHY layers. |
Use Scenario: Supplying local 3.0V bias to automotive-grade RF transceivers (e.g., GNSS, V2X, cellular modems). IC Role / Device Role / Timing Role: Low-noise post-regulator isolating sensitive RF circuitry from noisy DC/DC converter outputs. Use Value: 60µVrms noise and 75dB PSRR preserve receiver sensitivity and phase noise margins in sub-GHz and 2.4GHz bands. |
| Cameras | Automotive POL in ADAS |
Use Scenario: Providing stable 3.0V to CMOS image sensors and companion ISPs in surround-view and driver-monitoring cameras. IC Role / Device Role / Timing Role: Point-of-load regulator placed directly on camera module PCB to minimize trace inductance and EMI. Use Value: Fast load-transient response (<100µs settling) prevents image artifacts during exposure changes and LED flash triggering. |
Use Scenario: Generating 3.0V for radar processor peripherals, CAN FD interfaces, and sensor fusion MCUs in ADAS ECUs. IC Role / Device Role / Timing Role: Automotive-compliant POL supplying isolated, low-noise power to safety-critical subsystems requiring ASIL-B compliance support. Use Value: AEC-Q100 qualification and −40°C to +125°C operation ensure reliability in engine-bay-mounted radar control units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7315DQ-30W5-7 | Includes integrated output discharge (30Ω NMOS) to rapidly discharge VOUT when disabled; otherwise identical electrical specs. | Required where fast VOUT ramp-down is needed to meet system-level power sequencing or reset timing constraints. | Select DQ variant only if discharge function is explicitly required; standard Q version avoids unnecessary leakage path. |
| TLD1123-30QV | Higher 200mA output, wider 2.5–40V input range, but higher 65µA IQ and lower 65dB PSRR at 1kHz. | Better suited for high-current, high-input-voltage scenarios (e.g., 24V chassis systems), less optimal for ultra-low-noise 3.0V rails. | Choose TLD1123-30QV only when >150mA load or >5.25V input is present; AP7315Q-30W5-7 remains superior for noise-sensitive 3.0V loads. |
Compared with AP7315DQ-30W5-7, the AP7315Q-30W5-7 eliminates output discharge to reduce standby leakage and simplify layout; versus TLD1123-30QV, it trades input voltage range and current headroom for significantly lower noise and higher PSRR-making it the preferred choice for precision 3.0V automotive POLs.
Availability
AP7315Q-30W5-7 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and RF communication subsystems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle continuity.
Supply support for AP7315Q-30W5-7 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 company specializing in discrete, analog, and mixed-signal ICs, with design centers and manufacturing facilities certified to IATF 16949 for automotive products.
The AP7315Q belongs to Diodes' automotive-qualified LDO portfolio, engineered specifically for noise-sensitive point-of-load regulation in ADAS, infotainment, and body electronics where AEC-Q100 Grade 1 reliability and low-noise performance are mandatory.
FAQ
What is the minimum input voltage required for AP7315Q-30W5-7 to regulate 3.0V output at full 150mA load?
The dropout voltage is 0.21V (typical) at 150mA for VOUT = 3.0V, so minimum input is 3.0V + 0.21V = 3.21V. The device remains functional down to 1.7V input but cannot sustain regulation below 3.21V at full load. This value is confirmed in the Electrical Characteristics table under "Dropout Voltage" for 2.8V ≤ VOUT ≤ 3.3V.
Does AP7315Q-30W5-7 require an external output capacitor, and what type is recommended?
Yes, a minimum 0.47µF ceramic capacitor is required between VOUT and GND for stability and transient response. Diodes specifies low-ESR X5R/X7R ceramics placed adjacent to the VOUT and GND pins. Bulk capacitance may be added for large load steps, but the ceramic cap is mandatory and non-negotiable per the Application Information section.
Can the EN pin be left unconnected if enable functionality is not used?
No-EN must never be left floating. If enable control is unused, the EN pin must be tied directly to VIN to ensure permanent activation. Floating EN risks erratic behavior due to noise coupling, as specified in the Pin Descriptions: "This pin should be driven either high or low and must not be floating."
Is AP7315Q-30W5-7 compatible with lead-free reflow soldering processes?
Yes-it is fully RoHS 3 compliant, lead-free, halogen- and antimony-free, with matte tin-plated leads rated for solderability per MIL-STD-202, Method 208. Moisture sensitivity level is J-STD-020 Level 1, allowing unlimited floor life and standard Pb-free reflow profiles without baking.
AP7315Q-30W5-7 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):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.29V @ 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-30W5-7 FAQ
1.How can I place an order for AP7315Q-30W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7315Q-30W5-7 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-30W5-7 reliable?
The price and inventory of AP7315Q-30W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315Q-30W5-7 is usually 5 days.
3.What payment methods are accepted for AP7315Q-30W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315Q-30W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7315Q-30W5-7?
AP7315Q-30W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7315Q-30W5-7 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-30W5-7?
For technical support, including AP7315Q-30W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315Q-30W5-7 requirements.
6.How does Aetrix verify that AP7315Q-30W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7315Q-30W5-7 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-30W5-7 meets industry standards.
7.What is the process for return or replacement of AP7315Q-30W5-7?
All AP7315Q-30W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315Q-30W5-7, 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-30W5-7 part is unused and in its original packaging.
Return procedure for AP7315Q-30W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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