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Diodes Incorporated AP7315DQ-30W5-7
- Part No.:
- AP7315DQ-30W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7315DQ-30W5-7.pdf
- Description:
- IC REG LINEAR 3V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
AP7315DQ-30W5-7 from Diodes Incorporated is an automotive-grade 3.0V fixed-output, 150mA low-dropout linear regulator with enable control and integrated output discharge function. It features ±1% output voltage accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), 35µA quiescent current, and AEC-Q100 Grade 1 qualification in SOT25 package. It is designed for noise-sensitive power rails in ADAS camera modules and infotainment domain controllers.
For engineers reviewing the AP7315DQ-30W5-7 datasheet, AP7315DQ-30W5-7 pinout, AP7315DQ-30W5-7 application, or AP7315DQ-30W5-7 equivalent, this page delivers verified technical context, validated pin-level design meaning, automotive-specific operating limits, and real-world substitution guidance - all grounded in Diodes' DS41596 Rev. 3-2 specification.
Technical Context
The AP7315DQ-30W5-7 implements a CMOS-based LDO architecture with internal N-channel pass transistor and precision bandgap reference. Its enable input (EN) provides hard-shutdown capability with <1.0µA standby current, while the integrated discharge path (30Ω typical on-resistance) actively pulls VOUT to GND when disabled - eliminating residual voltage hold-up in safety-critical sequencing.
It operates across 1.7V–5.25V input range with guaranteed 150mA output current up to +125°C ambient, maintaining ±1% output accuracy and <0.29V dropout at 3.0V output/150mA load. Thermal protection and fold-back short-circuit current limiting (55mA typical) ensure robustness under fault conditions in automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±1% - ensures stable core supply for 3.0V logic in automotive microcontrollers and image sensors. |
| Max Output Current | 150mA continuous - supports single-sensor power domains in ADAS cameras without derating at +125°C. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC-DC converters feeding RF and analog signal chains. |
| Output Noise | 60µVrms (10Hz–100kHz) - preserves SNR in high-resolution camera ISPs and RF receiver bias rails. |
| Quiescent Current | 35µA typical - enables always-on functionality in vehicle wake-up circuits with minimal battery drain. |
| Dropout Voltage | 0.21V typical at 3.0V/150mA - allows operation from degraded 3.3V or 3.6V rails during cold-crank conditions. |
| Enable Threshold | VEN(H) ≥ 1.3V, VEN(L) ≤ 0.5V - compatible with standard 3.3V GPIOs and automotive wake signals. |
| Discharge Resistance | 30Ω typical - discharges 10µF output capacitance in <330µs, meeting ISO 16750-2 transient reset timing requirements. |
Pinout & Package
SOT25 (5-pin small-outline transistor) package with matte tin-plated leads, moisture sensitivity level 1 per J-STD-020, and 0.016g mass. Designed for surface-mount reflow assembly on automotive-grade PCBs with thermal vias to internal ground planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Power Input | Accepts 1.7V–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 and internal regulator reference; must connect directly to low-impedance ground plane. |
| 3 EN | Enable Control | Active-high digital input; drives regulator ON/OFF state; must not float - tie to VIN if unused. |
| 4 NC | No Connection | Internally unconnected; no external trace or pad required; avoid routing signals or copper near this pin. |
| 5 VOUT | Regulated Output | Delivers 3.0V ±1% at up to 150mA; includes integrated discharge FET that sinks current to GND when EN = low. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualification | Validated for -40°C to +125°C operation with PPAP support - meets functional safety requirements for ASIL-B system power domains. |
| Integrated Output Discharge | 30Ω on-resistance enables fast VOUT ramp-down (<330µs for 10µF), eliminating need for external discharge circuitry in reset sequencing. |
| High PSRR & Low Noise | 75dB rejection at 1kHz + 60µVrms noise - maintains clean bias for RF transceivers and high-speed ADCs in connected vehicles. |
| Ultra-Low Quiescent Current | 35µA typical - extends battery life in always-on telematics and door module controllers during vehicle sleep mode. |
| Wide Input Voltage Range | 1.7V–5.25V - accommodates direct connection to 3.3V or 3.6V intermediate rails, including those subject to automotive load-dump transients. |
Applications
| ADAS Camera Power | Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Powering image sensor and ISP in forward-facing ADAS camera modules requiring rapid power cycling and EMI-free operation. IC Role / Device Role / Timing Role: Primary 3.0V LDO delivering regulated bias to CIS and video processing ASICs; discharge function enables deterministic reset between frames. Use Value: 60µVrms noise prevents fixed-pattern noise in raw image data; 75dB PSRR rejects noise from nearby DC-DC converters powering motor drivers. |
Use Scenario: Supplying 3.0V core voltage to application processors in head-unit infotainment systems with multi-rail sequencing requirements. IC Role / Device Role / Timing Role: Secondary LDO generating clean core rail from 3.3V intermediate bus; EN pin synchronized with SoC power-state controller. Use Value: ±1% accuracy ensures processor operates within spec across temperature; 35µA IQ minimizes standby power in parked-vehicle mode. |
| Automotive RF Transceiver Bias | Telematics Module Wake-Up Rail |
|
Use Scenario: Providing ultra-low-noise 3.0V supply to LTE/C-V2X RF front-end ICs in telematics control units. IC Role / Device Role / Timing Role: Dedicated low-noise LDO isolating sensitive RF analog blocks from noisy digital domains; discharge prevents leakage into antenna path during sleep. Use Value: 60µVrms noise floor preserves receiver sensitivity; 30Ω discharge path eliminates DC offset that could desensitize LNA input stage. |
Use Scenario: Generating always-on 3.0V rail for CAN/LIN transceivers and wake-up comparators in gateway ECUs. IC Role / Device Role / Timing Role: Low-IQ LDO maintaining communication interface readiness during vehicle sleep; EN controlled by CAN bus activity detector. Use Value: 35µA IQ enables >10-year battery backup life; AEC-Q100 qualification guarantees reliability over full vehicle lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7315Q-30W5-7 | No output discharge function; identical electrical specs except EN=low leaves VOUT floating. | Used where output hold-up is acceptable or external discharge is implemented; lower BOM cost. | Select when system-level reset timing does not require active VOUT discharge, e.g., non-safety-critical peripherals. |
| TLD1123-30V | 3.0V/200mA LDO with 50µVrms noise, 70dB PSRR, but no integrated discharge; AEC-Q100 Grade 0 (−40°C to +150°C). | Higher current rating suits dual-sensor modules; wider temp range supports under-hood placement. | Choose when higher output current or extended junction temperature range is required, accepting external discharge design. |
Compared with AP7315Q-30W5-7, the AP7315DQ-30W5-7 adds critical discharge functionality for deterministic reset timing, while TLD1123-30V trades discharge for higher current and extended temperature margin - making each optimal for distinct automotive subsystem constraints.
Availability
AP7315DQ-30W5-7 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment SoC power domains, automotive RF transceiver biasing, and telematics wake-up rail applications requiring stable component supply across automotive production lifecycles.
Supply support for AP7315DQ-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.
The AP7315Q series is part of Diodes' automotive power management portfolio, engineered specifically for noise-sensitive, safety-critical LDO applications in ADAS, infotainment, and body electronics - with emphasis on AEC-Q100 compliance, low noise, and precise voltage regulation.
FAQ
What is the purpose of the NC pin (Pin 4) on AP7315DQ-30W5-7?
Pin 4 is a no-connect terminal with no internal bonding or circuit connection. It must remain unconnected in layout - no trace, pad, or copper pour should be routed to it. This design choice simplifies die packaging and avoids unintended parasitic coupling in high-frequency automotive environments.
Does AP7315DQ-30W5-7 require an external discharge resistor?
No. The device integrates an internal N-channel FET between VOUT and GND that activates automatically when EN is pulled low. With a typical on-resistance of 30Ω, it discharges common output capacitances (e.g., 10µF) in under 330µs - eliminating need for external resistors and saving PCB space in compact automotive modules.
How does the AP7315DQ-30W5-7 behave during cold-crank conditions?
With 1.7V minimum input voltage and 0.21V typical dropout at 3.0V/150mA, it remains operational down to VIN = 3.21V - well within the ISO 16750-2 cold-crank profile (minimum 2.5V for 15ms). Its ±1% output accuracy and thermal shutdown ensure stable 3.0V delivery even during transient battery sags.
Can AP7315DQ-30W5-7 be used in non-automotive applications?
Yes - its electrical performance (150mA, 75dB PSRR, 60µVrms noise) is identical to commercial-grade versions. However, the "Q" suffix denotes AEC-Q100 qualification, PPAP capability, and IATF 16949 manufacturing - providing traceability and reliability assurance beneficial in industrial or medical systems demanding long-term supply stability.
AP7315DQ-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
AP7315DQ-30W5-7 FAQ
1.How can I place an order for AP7315DQ-30W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7315DQ-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 AP7315DQ-30W5-7 reliable?
The price and inventory of AP7315DQ-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 AP7315DQ-30W5-7 is usually 5 days.
3.What payment methods are accepted for AP7315DQ-30W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315DQ-30W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7315DQ-30W5-7?
AP7315DQ-30W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7315DQ-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 AP7315DQ-30W5-7?
For technical support, including AP7315DQ-30W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315DQ-30W5-7 requirements.
6.How does Aetrix verify that AP7315DQ-30W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7315DQ-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 AP7315DQ-30W5-7 meets industry standards.
7.What is the process for return or replacement of AP7315DQ-30W5-7?
All AP7315DQ-30W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315DQ-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 AP7315DQ-30W5-7 part is unused and in its original packaging.
Return procedure for AP7315DQ-30W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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