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Diodes Incorporated AP7347DQ-11FDZW-7
- Part No.:
- AP7347DQ-11FDZW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
AP7347DQ-11FDZW-7.pdf
- Description:
- LDO CMOS LOWCURR W-DFN2020-6 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
AP7347DQ-11FDZW-7 from Diodes Incorporated is an automotive-grade 500mA low-dropout linear regulator with fixed 1.1V output, ±1% accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 60µA quiescent current. It features enable control, thermal shutdown, short-circuit protection, and auto-discharge functionality-designed for noise-sensitive power rails in ADAS camera modules and infotainment domain controllers.
For engineers reviewing the AP7347DQ-11FDZW-7 datasheet, AP7347DQ-11FDZW-7 pinout, AP7347DQ-11FDZW-7 application, or AP7347DQ-11FDZW-7 equivalent, this page delivers verified electrical specs, validated WDFN2020-6 pin mapping, AEC-Q100 qualification status, thermal resistance (θJA = 54°C/W), and automotive-specific design considerations including wettable flank compatibility and IATF 16949 manufacturing traceability.
Technical Context
The AP7347DQ-11FDZW-7 implements a CMOS-based LDO architecture with integrated voltage reference, error amplifier, current limit circuit, and NMOS pass transistor. Its auto-discharge function uses a 30Ω on-resistance N-channel switch between VOUT and GND when EN is low, ensuring rapid output discharge during shutdown.
It operates across 1.7V–5.5V input range with dropout voltage as low as 0.75V at 500mA for 1.1V output, and maintains stability with 1µF ceramic input/output capacitors. The device meets AEC-Q100 Grade 1 (−40°C to +125°C ambient) and includes thermal shutdown at +170°C with +20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.1V ±1% - ensures precise core voltage for low-power microcontrollers and sensor interfaces in automotive domains. |
| Max Output Current | 500mA - supports high-current digital loads such as image signal processors in automotive cameras without external boost stages. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding RF transceivers or ADCs. |
| Output Noise | 60µVrms (10Hz–100kHz) - enables clean analog supply for high-resolution camera sensors and RF front-ends. |
| Quiescent Current | 60µA - minimizes standby power loss in always-on vehicle networks like CAN FD gateways and telematics ECUs. |
| Dropout Voltage | 0.75V at 500mA - allows operation from 1.85V input, compatible with partially discharged 2S Li-ion battery packs in portable diagnostic tools. |
| Enable Threshold | VEN(H) ≥ 1.25V - compatible with 1.8V/3.3V GPIOs without level-shifting in modern SoC-based ADAS platforms. |
| Thermal Resistance | θJA = 54°C/W (WDFN2020-6) - enables 500mA continuous operation at +85°C ambient with minimal PCB copper area. |
Pinout & Package
AP7347DQ-11FDZW-7 is housed in a 2.0mm × 2.0mm W-DFN2020-6 (SWP) package with wettable flanks for automated optical inspection (AOI) and enhanced solder joint reliability in automotive reflow processes. The exposed pad (EP) must be connected to GND or large copper pour for optimal thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 1.1V output - connect directly to load with low-impedance path; place 1µF ceramic capacitor within 2mm. |
| 2, 5 | NC | No internal connection - recommended to tie to GND for improved thermal conduction and EMI shielding. |
| 3 | GND | Analog/digital ground reference - connect to solid ground plane under EP; avoid daisy-chaining with other ICs. |
| 4 | EN | Active-high enable - drive with clean logic signal; floating state disables regulator; threshold is 1.25V min. |
| 6 | VIN | Input supply (1.7–5.5V) - decouple with 1µF ceramic cap placed adjacent to pin; use wide trace for >500mA paths. |
| EP | Exposed Pad | Thermal and mechanical anchor - connect to ≥100mm² GND copper area; not electrically functional as GND node. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C ambient) - certified for engine bay, cabin, and ADAS ECU deployments with full PPAP documentation support. |
| Auto-Discharge Function | 30Ω NMOS switch between VOUT and GND when disabled - discharges output in <1ms, preventing back-powering of upstream circuits. |
| Low-Noise Regulation | 60µVrms noise floor - eliminates need for post-LDO RC filtering in RF supply chains for LTE/V2X modems. |
| High PSRR at Low Frequencies | 75dB @ 1kHz - rejects ripple from buck converter switching frequencies and their harmonics in multi-rail systems. |
| Wettable Flank Packaging | W-DFN2020-6 (SWP) - enables AOI-compatible solder joint inspection per IPC-A-610 Class 3 requirements for automotive production. |
| Ultra-Low Quiescent Current | 60µA operating / 0.01µA shutdown - extends battery life in always-on telematics and remote keyless entry receivers. |
Applications
| ADAS Camera Power Rail | Infotainment Domain Controller Core Supply |
|---|---|
|
Use Scenario: Powering 1.1V core rail of image signal processor (ISP) in forward-facing monocular camera module. IC Role / Device Role / Timing Role: Primary low-noise LDO delivering stable 1.1V at up to 500mA with fast transient response to ISP burst-mode operation. Use Value: 60µVrms noise prevents pixel-level artifacts; 75dB PSRR isolates ISP from 2MHz buck converter ripple in shared 5V intermediate bus. |
Use Scenario: Providing 1.1V supply to ARM Cortex-R5F core in automotive infotainment SoC with real-time OS requirements. IC Role / Device Role / Timing Role: Precision voltage source enabling deterministic CPU clock timing and low-jitter PLL operation. Use Value: ±1% output accuracy ensures guaranteed core voltage margin across temperature; 500mA capability supports dynamic frequency scaling without brownout. |
| Automotive Wireless Communication Module | Telematics Control Unit (TCU) Sensor Interface |
|
Use Scenario: Clean 1.1V supply for GNSS receiver baseband IC in cellular/V2X telematics gateway. IC Role / Device Role / Timing Role: Low-noise local regulator decoupling GNSS RF section from noisy digital subsystems. Use Value: 75dB PSRR at 1kHz suppresses digital switching noise that would otherwise degrade C/N0 ratio and position fix accuracy. |
Use Scenario: Powering 1.1V analog front-end of inertial measurement unit (IMU) in TCU for dead reckoning. IC Role / Device Role / Timing Role: Ultra-low-noise bias source for MEMS accelerometer/gyro signal conditioning circuitry. Use Value: 60µVrms noise floor avoids amplification of thermal noise in sigma-delta ADC path, preserving 16-bit effective resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0511PDBVR | Lower IQ (25µA), but only 200mA output; no auto-discharge; non-automotive grade. | Limited to non-safety-critical consumer-grade modules; lacks AEC-Q100 qualification and wettable flanks. | Select only for cost-sensitive non-automotive designs where 500mA and discharge are unnecessary. |
| NCP114AMX11T2G | Same 1.1V/500mA rating, but 85dB PSRR and 30µVrms noise; AEC-Q100 qualified; SOT-23-5 package. | Higher performance noise/PSRR, but larger footprint and no wettable flanks; θJA = 210°C/W limits power density. | Prefer when ultra-low noise dominates over board space; avoid in dense ADAS PCBs requiring thermal efficiency. |
Compared with TPS7A0511PDBVR and NCP114AMX11T2G, AP7347DQ-11FDZW-7 uniquely balances automotive compliance, compact wettable-flank packaging, 500mA capability, and integrated discharge-making it optimal for space-constrained, safety-aware ADAS and telematics power domains.
Availability
AP7347DQ-11FDZW-7 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment domain controllers, wireless communication subsystems, and telematics control units requiring stable component supply with full AEC-Q100 traceability and IATF 16949 manufacturing assurance.
Supply support for AP7347DQ-11FDZW-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 for automotive, industrial, and computing markets, with ISO/TS 16949-certified fabrication and assembly facilities.
The AP7347DQ series belongs to Diodes' automotive-qualified LDO portfolio, engineered specifically for noise-sensitive, high-reliability power domains in ADAS, infotainment, and vehicle connectivity systems.
FAQ
What is the maximum allowable input voltage for AP7347DQ-11FDZW-7?
The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.5V. Exceeding 5.5V risks permanent damage even for brief transients. For 12V automotive battery-supplied systems, a pre-regulator stage is mandatory before this LDO.
Does AP7347DQ-11FDZW-7 require an external discharge resistor?
No. The device integrates an NMOS auto-discharge switch (30Ω typical) between VOUT and GND, activated automatically when EN is pulled low. No external components are needed to ensure rapid output discharge-critical for safe power sequencing in automotive ECUs.
How does the W-DFN2020-6 (SWP) package improve manufacturability in automotive production?
The wettable flank geometry enables automated optical inspection (AOI) of solder joints per IPC-A-610 Class 3 standards, reducing field failure risk from voided or insufficient solder fillets. Its 2.0mm × 2.0mm footprint also supports high-density PCB layouts required in compact ADAS camera modules.
Is AP7347DQ-11FDZW-7 compatible with 1.8V GPIO enable signals?
Yes. With a minimum EN high threshold of 1.25V and maximum EN low threshold of 0.5V, the part is fully compatible with standard 1.8V logic families. No level-shifter is required, simplifying interface design with modern automotive MCUs and SoCs.
AP7347DQ-11FDZW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.95V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 125 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (1kHz)
- Control Features:
- Current Limit, Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- W-DFN2020-6 (SWP) (Type A1)
AP7347DQ-11FDZW-7 FAQ
1.How can I place an order for AP7347DQ-11FDZW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7347DQ-11FDZW-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 AP7347DQ-11FDZW-7 reliable?
The price and inventory of AP7347DQ-11FDZW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7347DQ-11FDZW-7 is usually 5 days.
3.What payment methods are accepted for AP7347DQ-11FDZW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7347DQ-11FDZW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7347DQ-11FDZW-7?
AP7347DQ-11FDZW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7347DQ-11FDZW-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 AP7347DQ-11FDZW-7?
For technical support, including AP7347DQ-11FDZW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7347DQ-11FDZW-7 requirements.
6.How does Aetrix verify that AP7347DQ-11FDZW-7 is sourced from the original manufacturer or authorized distributors?
All AP7347DQ-11FDZW-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 AP7347DQ-11FDZW-7 meets industry standards.
7.What is the process for return or replacement of AP7347DQ-11FDZW-7?
All AP7347DQ-11FDZW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7347DQ-11FDZW-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 AP7347DQ-11FDZW-7 part is unused and in its original packaging.
Return procedure for AP7347DQ-11FDZW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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