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Diodes Incorporated AP7315Q-11W5-7
- Part No.:
- AP7315Q-11W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7315Q-11W5-7.pdf
- Description:
- IC REG LINEAR 1.1V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,636
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Product details
Overview
AP7315Q-11W5-7 from Diodes Incorporated is an automotive-grade 150mA low-dropout linear regulator with fixed 1.1V output, ±1% voltage 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-11W5-7 datasheet, AP7315Q-11W5-7 pinout, AP7315Q-11W5-7 application, or AP7315Q-11W5-7 equivalent, this page delivers verified technical context, SOT25 package mapping, functional pin definitions, automotive-specific reliability data, and validated alternative LDOs for noise-sensitive 1.1V POL designs.
Technical Context
The AP7315Q-11W5-7 uses a CMOS-based LDO architecture with internal reference and error amplifier to maintain stable 1.1V output under load transients up to 150mA. Its high PSRR (75dB @ 1kHz) and ultra-low 60µVrms noise suppress supply ripple from noisy automotive rail sources like buck converters feeding RF modules.
Enable logic operates with VEN(H) ≥ 1.3V and VEN(L) ≤ 0.5V, supporting direct microcontroller GPIO control without level-shifting. The device lacks output discharge (non-DQ variant), simplifying sequencing in systems where controlled VOUT decay is not required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.1V ±1% - ensures precise core voltage for low-power MCUs and sensors requiring tight regulation. |
| Max Output Current | 150mA continuous - supports single-core automotive microcontrollers or dual-sensor interfaces. |
| PSRR | 75dB at 1kHz - rejects switching noise from adjacent DC/DC converters in compact ECU layouts. |
| Output Noise | 60µVrms (10Hz–100kHz) - preserves signal integrity in analog front-ends of radar or camera ISPs. |
| Quiescent Current | 35µA typical - enables always-on functionality in vehicle wake-up circuits without battery drain. |
| Dropout Voltage | 0.50V max @ 150mA (for 1.1V VOUT) - allows operation from degraded 2.0V battery during cold-crank conditions. |
| Operating Temp | -40°C to +125°C junction - meets full automotive ambient range with derating per thermal resistance (θJA = 179°C/W). |
Pinout & Package
SOT25 (5-pin) surface-mount 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) | 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; must connect directly to low-impedance ground plane to minimize noise coupling. |
| 3 (EN) | Enable Control | Active-high digital input; drives regulator ON when ≥1.3V, OFF when ≤0.5V; must never float. |
| 4 (NC) | No Connection | Internally unconnected; PCB pad may be omitted or left floating-no electrical function. |
| 5 (VOUT) | Regulated Output | Delivers stable 1.1V ±1%; requires local 0.47µF ceramic capacitor to GND for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualification | Validated for -40°C to +125°C operation with PPAP support-enables direct use in safety-critical ADAS ECUs without requalification. |
| High PSRR & Low Noise | 75dB rejection at 1kHz + 60µVrms noise enables clean power delivery to RF transceivers and image signal processors without external filtering. |
| Ultra-Low Quiescent Current | 35µA typical IQ allows integration into always-on vehicle networks (e.g., CAN wake-up domains) with minimal standby power impact. |
| Wide Input Range | 1.7V–5.25V operation supports direct connection to 3.3V or 5V rails and tolerates automotive battery droop down to 2.0V during cranking. |
| CMOS Process Architecture | Enables low RDS(ON) and fast load transient response (<100µs settling time), critical for burst-mode sensor operation. |
Applications
| ADAS Camera Module Power | Infotainment SoC Core Rail |
|---|---|
Use Scenario: Powers 1.1V core voltage of automotive-grade image signal processors (ISPs) in surround-view camera systems. IC Role / Device Role / Timing Role: Primary low-noise POL regulator delivering stable 1.1V at up to 150mA with <100µs load transient recovery. Use Value: Prevents image artifacts caused by supply noise coupling into analog pixel readout paths. |
Use Scenario: Supplies 1.1V core rail for application processors in head-unit infotainment systems. IC Role / Device Role / Timing Role: Enables dynamic voltage scaling (DVS) via EN pin control synchronized with processor sleep/wake states. Use Value: Reduces system-level standby power by 35µA per rail while maintaining AEC-Q100 compliance. |
| Radar Transceiver Bias Supply | Automotive Wireless Communication IC |
Use Scenario: Provides clean 1.1V bias for RF front-end components in 77GHz radar transceivers. IC Role / Device Role / Timing Role: Secondary LDO filtering ripple from primary buck converter; PSRR >75dB suppresses switching harmonics. Use Value: Maintains EVM performance by limiting supply-induced phase noise in LO distribution paths. |
Use Scenario: Powers baseband processor cores in V2X (802.11p) or cellular-V2X modems operating in vehicle telematics units. IC Role / Device Role / Timing Role: Regulates 1.1V core voltage with ±1% accuracy across temperature to ensure deterministic timing margins. Use Value: Guarantees bit-error-rate (BER) stability over full automotive temperature range (-40°C to +125°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7315Q-11W5-13 | Same silicon die, identical electrical specs, but packaged in W6 (SOT26) with exposed thermal pad and 10,000 pcs/reel packaging. | Higher thermal performance (θJA ≈ 140°C/W) and volume-friendly tape-and-reel format for high-throughput SMT lines. | Select when board layout allows SOT26 footprint and production volume exceeds 5k units per batch. |
| TPS78011QDRVRQ1 | TI's AEC-Q100 Grade 1 150mA LDO with 1.1V output, but higher 50µA IQ, lower 65dB PSRR, and no EN pin hysteresis spec. | Requires external pull-up on EN for reliable startup; less effective at suppressing mid-frequency ripple in RF-sensitive designs. | Choose only if TI ecosystem alignment or existing qualification in Tier-1 BOM mandates substitution. |
Compared with AP7315Q-11W5-7, the W6-packaged variant offers superior thermal dissipation for sustained 150mA loads, while the TPS78011QDRVRQ1 trades off noise performance and enable robustness for broader TI design toolchain integration.
Availability
AP7315Q-11W5-7 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC core rails, and radar transceiver bias supplies requiring stable component supply with AEC-Q100 traceability and PPAP documentation.
Supply support for AP7315Q-11W5-7 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 ISO/TS 16949-certified automotive production facilities and broad AEC-Q100-qualified portfolio.
The AP7315Q series belongs to Diodes' Automotive Power Management product line, engineered specifically for noise-sensitive point-of-load regulation in ADAS, infotainment, and body electronics applications demanding Grade 1 reliability.
FAQ
What is the maximum allowable input voltage for AP7315Q-11W5-7?
The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.25V. Exceeding 5.25V risks violating safe operating area limits and may trigger internal protection circuits. For automotive battery-supplied systems, this range accommodates nominal 3.3V/5V rails and transient spikes up to 5.25V without external clamping.
Does AP7315Q-11W5-7 include output discharge functionality?
No. The "Q" suffix (non-DQ) indicates absence of internal output discharge MOSFET. When disabled via EN pin, VOUT remains floating and decays only through external load or parasitic paths. This behavior is intentional for systems where uncontrolled VOUT collapse could disrupt downstream sequencing or cause latch-up.
How does the 1.1V output accuracy affect timing-critical applications?
±1% output voltage accuracy (i.e., ±11mV at 1.1V) ensures consistent core voltage for digital logic, directly impacting setup/hold timing margins. At 125°C junction temperature, the additional ±30ppm/°C drift contributes <±1.5mV error, keeping total deviation within ±12.5mV-well within typical MCU core voltage tolerance bands.
Can AP7315Q-11W5-7 be used without an input capacitor?
No. A minimum 0.47µF ceramic capacitor between VIN and GND is mandatory per datasheet Section 10. Omitting it causes instability, increased output ripple, and potential oscillation during load transients. The capacitor must be placed within 2mm of the VIN and GND pins using wide, low-inductance traces to maintain PSRR and transient response.
AP7315Q-11W5-7 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):
- 1.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.64V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- 100 µA
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7315Q-11W5-7 FAQ
1.How can I place an order for AP7315Q-11W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7315Q-11W5-7 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-11W5-7 reliable?
The price and inventory of AP7315Q-11W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315Q-11W5-7 is usually 5 days.
3.What payment methods are accepted for AP7315Q-11W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315Q-11W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7315Q-11W5-7?
AP7315Q-11W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7315Q-11W5-7 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-11W5-7?
For technical support, including AP7315Q-11W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315Q-11W5-7 requirements.
6.How does Aetrix verify that AP7315Q-11W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7315Q-11W5-7 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-11W5-7 meets industry standards.
7.What is the process for return or replacement of AP7315Q-11W5-7?
All AP7315Q-11W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315Q-11W5-7, 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-11W5-7 part is unused and in its original packaging.
Return procedure for AP7315Q-11W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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