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Diodes Incorporated AP7347DQ-17FDZW-7
- Part No.:
- AP7347DQ-17FDZW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
AP7347DQ-17FDZW-7.pdf
- Description:
- LDO CMOS LowCurr W-DFN2020-6 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
AP7347DQ-17FDZW-7 from Diodes Incorporated is an automotive-grade 500mA low-dropout linear regulator with fixed 1.7V 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 systems.
For engineers reviewing the AP7347DQ-17FDZW-7 datasheet, AP7347DQ-17FDZW-7 pinout, AP7347DQ-17FDZW-7 application, or AP7347DQ-17FDZW-7 equivalent, key selection criteria include its AEC-Q100 qualification, WDFN2020-6 wettable flank package, 0.55V typical dropout at 500mA (for VOUT = 1.7V), and guaranteed operation from –40°C to +125°C ambient.
Technical Context
The AP7347DQ-17FDZW-7 integrates a CMOS-based error amplifier, precision voltage reference, current-limit circuit, and thermal shutdown logic. Its internal architecture supports fast load transient response (<10µs settling) and stable operation with 1µF ceramic input/output capacitors.
It implements active discharge via an internal 30Ω N-channel MOSFET when disabled, ensuring rapid VOUT decay. The EN pin accepts logic-level control (VIL ≤ 0.5V, VIH ≥ 1.25V) and must not float-enabling precise sequencing in multi-rail automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.7V ±1% - eliminates external feedback resistors and ensures tight regulation across temperature and load. |
| Max Output Current | 500mA - supports high-current digital loads like image signal processors without external boost stages. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC/DC converters in mixed-signal automotive domains. |
| Output Noise | 60µVrms (10Hz–100kHz) - meets stringent RF and sensor analog supply requirements in camera and radar modules. |
| Quiescent Current | 60µA - enables always-on functionality in low-power wake-up circuits while minimizing battery drain. |
| Dropout Voltage | 0.55V typ. @ 500mA - allows operation from 2.25V input (e.g., degraded 3.3V rail), extending system uptime during cold-crank conditions. |
| Operating Temp | –40°C to +125°C ambient - qualified per AEC-Q100 Grade 1 for under-hood and cabin-mounted electronics. |
Pinout & Package
AP7347DQ-17FDZW-7 uses the W-DFN2020-6 (SWP) wettable flank package (2.0mm × 2.0mm, 0.65mm pitch), optimized for automated optical inspection and high-density PCB layouts. The exposed pad (EP) must be connected to GND or large copper pour for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 1.7V output; requires local 1µF ceramic capacitor placed adjacent to pin for stability and transient response. |
| 2, 5 | NC | No-connect terminals; recommended to tie to GND for enhanced thermal conduction and EMI shielding. |
| 3 | GND | Power ground reference; must connect directly to low-impedance PCB ground plane to minimize noise coupling. |
| 4 | EN | Active-high enable; drives regulator ON/OFF with <0.5V low threshold and >1.25V high threshold-compatible with 1.8V/3.3V GPIOs. |
| 6 | VIN | Input supply (1.7V–5.5V); requires 1µF ceramic decoupling capacitor placed within 2mm of pin to suppress input transients. |
| EP | Exposed Pad | Thermal pad; must be soldered to ≥40mm² GND copper area for θJA = 54°C/W and safe 500mA operation. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | AEC-Q100 Grade 1 qualified, PPAP-capable, manufactured in IATF 16949-certified facilities-ensures traceability and process control for safety-critical systems. |
| Auto-Discharge | 30Ω internal N-MOSFET discharges VOUT rapidly upon disable-prevents floating voltages that could disrupt downstream logic sequencing. |
| Low-Noise Design | 60µVrms noise floor and 75dB PSRR enable direct powering of RF receivers and high-resolution ADCs without additional filtering. |
| Wettable Flank Package | W-DFN2020-6 SWP enables AOI-compatible solder joint inspection-critical for zero-defect automotive manufacturing requirements. |
| Thermal Protection | 170°C junction shutdown with 20°C hysteresis prevents thermal runaway during sustained overload or poor heatsinking. |
Applications
| ADAS Camera Power | Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Powering 1.7V core supply for automotive-grade image signal processors (ISPs) in surround-view cameras. IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO delivering clean bias to ISP digital cores and analog front-ends. Use Value: 60µVrms noise and 75dB PSRR prevent image artifacts (e.g., banding, streaking) caused by switching noise coupling into pixel readout paths. |
Use Scenario: Providing stable 1.7V auxiliary rail for memory interfaces (LPDDR4 I/O) in head-unit application processors. IC Role / Device Role / Timing Role: Precision voltage regulator maintaining timing margin integrity for high-speed memory data strobes. Use Value: ±1% output accuracy and <10µs load transient response ensure setup/hold time compliance during burst-mode memory access. |
| Automotive RF Transceiver Bias | Telematics GNSS Front-End |
|
Use Scenario: Supplying 1.7V bias to LTE/V2X transceiver RF synthesizers and PLLs in telematics control units. IC Role / Device Role / Timing Role: Ultra-low-noise LDO isolating sensitive RF circuitry from noisy digital domain supplies. Use Value: 60µVrms noise floor minimizes phase noise degradation in local oscillator paths, preserving EVM and receiver sensitivity. |
Use Scenario: Powering 1.7V LNA and downconverter stages in dual-band GNSS receivers (GPS + Galileo) for navigation modules. IC Role / Device Role / Timing Role: High-PSRR regulator rejecting broadband noise from CAN/LIN bus transceivers and microcontrollers. Use Value: 75dB PSRR at 1kHz attenuates switching harmonics from nearby DC/DC converters, improving C/N0 ratio by ≥3dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS74517PQWDRBRQ1 | Higher IQ (1.2µA), lower PSRR (65dB @ 1kHz), same 1.7V fixed output and AEC-Q100 Grade 1 rating. | Better suited for ultra-low-power always-on monitoring circuits; less effective against mid-frequency switching noise. | Select if standby current is primary constraint and PSRR >70dB is not required. |
| NCP114AMX170TBG | Lower output current (300mA), higher dropout (0.8V @ 300mA), no auto-discharge, same 1.7V output and AEC-Q100 qualification. | Limited to lower-current analog sensors or MCU peripherals; lacks sequencing support for multi-rail systems. | Select only for cost-sensitive, non-sequenced 1.7V rails where 500mA headroom is unnecessary. |
Compared with TPS74517PQWDRBRQ1 and NCP114AMX170TBG, the AP7347DQ-17FDZW-7 uniquely balances 500mA drive capability, 75dB PSRR, 60µVrms noise, and integrated discharge-making it optimal for ADAS imaging and RF power domains where noise, current, and sequencing coexist as hard constraints.
Availability
AP7347DQ-17FDZW-7 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC power delivery, and telematics RF subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP7347DQ-17FDZW-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 for automotive, industrial, computing, and consumer markets-with emphasis on high-reliability, AEC-Q100-qualified components.
The AP7347DQ series belongs to Diodes' automotive LDO portfolio, engineered specifically for noise-sensitive power domains in ADAS, infotainment, and wireless communication systems-prioritizing PSRR, output accuracy, and thermal robustness.
FAQ
What is the maximum allowable input voltage for AP7347DQ-17FDZW-7?
The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.5V. Exceeding 5.5V may trigger overvoltage protection or degrade long-term reliability-even if within absolute max ratings-due to increased power dissipation and junction temperature rise.
Does AP7347DQ-17FDZW-7 require an external discharge resistor?
No. The device integrates a 30Ω N-channel MOSFET between VOUT and GND that activates automatically when EN is low, discharging the output capacitance without external components-reducing BOM count and PCB area in space-constrained automotive modules.
How does the W-DFN2020-6 (SWP) package improve manufacturability?
The wettable flank design enables automated optical inspection (AOI) of solder joints along the vertical sidewalls, detecting voids, insufficient fillets, or bridging-critical for zero-defect automotive assembly. Its 2.0mm × 2.0mm footprint also supports high-density routing in compact ECUs.
Is AP7347DQ-17FDZW-7 compatible with 1.8V GPIOs for EN control?
Yes. The EN pin has a guaranteed high threshold of ≥1.25V and low threshold of ≤0.5V, making it fully compatible with 1.8V logic families. Driving EN directly from a 1.8V microcontroller GPIO ensures reliable turn-on without level-shifting circuitry.
AP7347DQ-17FDZW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.7V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.55V @ 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 (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- W-DFN2020-6 (SWP) (Type A1)
AP7347DQ-17FDZW-7 FAQ
1.How can I place an order for AP7347DQ-17FDZW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7347DQ-17FDZW-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-17FDZW-7 reliable?
The price and inventory of AP7347DQ-17FDZW-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-17FDZW-7 is usually 5 days.
3.What payment methods are accepted for AP7347DQ-17FDZW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7347DQ-17FDZW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7347DQ-17FDZW-7?
AP7347DQ-17FDZW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7347DQ-17FDZW-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-17FDZW-7?
For technical support, including AP7347DQ-17FDZW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7347DQ-17FDZW-7 requirements.
6.How does Aetrix verify that AP7347DQ-17FDZW-7 is sourced from the original manufacturer or authorized distributors?
All AP7347DQ-17FDZW-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-17FDZW-7 meets industry standards.
7.What is the process for return or replacement of AP7347DQ-17FDZW-7?
All AP7347DQ-17FDZW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7347DQ-17FDZW-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-17FDZW-7 part is unused and in its original packaging.
Return procedure for AP7347DQ-17FDZW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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