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Diodes Incorporated AP7347DQ-15FDZW-7
- Part No.:
- AP7347DQ-15FDZW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
AP7347DQ-15FDZW-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-15FDZW-7 from Diodes Incorporated is an automotive-grade 1.5V fixed-output LDO regulator delivering 500mA output current with ±1% output voltage accuracy, 75dB PSRR at 1kHz, and 60µVrms output noise (10Hz–100kHz). 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-15FDZW-7 datasheet, AP7347DQ-15FDZW-7 pinout, AP7347DQ-15FDZW-7 application, or AP7347DQ-15FDZW-7 equivalent, key selection criteria include its AEC-Q100 qualification, WDFN2020-6 wettable flank package, 1.7V–5.5V input range, 60µA quiescent current, and guaranteed 500mA load capability under automotive temperature conditions (−40°C to +125°C).
Technical Context
This CMOS-based LDO integrates a precision voltage reference, error amplifier, current-limit circuit, and NMOS pass transistor with integrated auto-discharge path. Its architecture supports fast transient response and stable operation with 1µF ceramic input/output capacitors.
The device implements thermal shutdown at +170°C with +20°C hysteresis, fold-back short-circuit current limiting (~180mA), and EN pin logic thresholds (VIL ≤ 0.5V, VIH ≥ 1.25V) compatible with standard automotive logic interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% - ensures stable core supply for 1.5V I/O domains in automotive SoCs |
| Max Output Current | 500mA - sufficient to power dual-lane MIPI CSI-2 camera sensors or RF transceivers |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC/DC converters in shared power domains |
| Output Noise | 60µVrms (10Hz–100kHz) - preserves SNR in analog front-ends of radar receivers and audio codecs |
| Quiescent Current | 60µA - enables low-power sleep modes without compromising wake-up responsiveness |
| Dropout Voltage | 0.55V @ 500mA (for VOUT = 1.5V) - allows operation from degraded 2.0V battery during cold-crank conditions |
| Operating Temp | −40°C to +125°C ambient - meets AEC-Q100 Grade 1 requirements for engine bay and cabin electronics |
Pinout & Package
AP7347DQ-15FDZW-7 uses the W-DFN2020-6 (SWP) wettable flank package (2.0mm × 2.0mm, 0.65mm pitch), optimized for automated optical inspection (AOI) and high-density automotive PCB layouts. The exposed pad (EP) must be connected to GND via large copper area for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 1.5V output - connect directly to load with low-inductance ceramic capacitor (≥1µF) |
| 2,5 | NC | No-connect terminals - recommended to tie to GND for improved thermal conduction and EMI shielding |
| 3 | GND | Power ground reference - must be low-impedance connection to system ground plane |
| 4 | EN | Active-high enable - drives regulator ON when ≥1.25V; pulls to GND for shutdown (ISTANDBY = 0.01µA) |
| 6 | VIN | Input supply (1.7V–5.5V) - requires local 1µF ceramic decoupling placed within 2mm of pin |
| EP | Exposed Pad | Thermal interface - soldered to GND copper pour; not electrically functional as signal or power return |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C) - certified for safety-critical automotive subsystems including ADAS and telematics |
| Auto-Discharge Path | 30Ω on-resistance (VEN = 0V) - rapidly discharges VOUT to prevent latch-up during power sequencing |
| Low-Noise Architecture | 60µVrms noise floor - avoids interference with sensitive RF receivers operating near 2.4GHz or 5.8GHz bands |
| Wettable Flank Packaging | W-DFN2020-6 (FDZW) - enables reliable AOI inspection of solder joints in high-reliability automotive assembly lines |
| High PSRR at Low Frequencies | 75dB @ 1kHz - mitigates ripple from 1MHz buck converters feeding downstream analog circuitry |
Applications
| ADAS Camera Power | Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Powering 1.5V MIPI CSI-2 image sensor interface in forward-facing driver assistance cameras. IC Role / Device Role / Timing Role: Primary low-noise post-regulator supplying clean 1.5V to sensor PHY and serializer ICs. Use Value: 60µVrms noise prevents pixel-level artifacts; 500mA capacity supports dual-sensor configurations. |
Use Scenario: Providing stable 1.5V supply to DDR I/O buffers in automotive infotainment application processors. IC Role / Device Role / Timing Role: Dedicated LDO for memory interface voltage domain requiring tight regulation and fast load transient response. Use Value: ±1% accuracy maintains timing margins; 75dB PSRR isolates DDR signaling from noisy DC/DC switching noise. |
| Radar Transceiver Bias | Automotive Wireless Audio Link |
|
Use Scenario: Biasing low-noise amplifiers (LNAs) and mixers in 77GHz automotive radar receiver chains. IC Role / Device Role / Timing Role: Ultra-low-noise analog supply rail decoupled from digital power domains. Use Value: 60µVrms noise floor preserves radar receiver sensitivity; thermal shutdown protects against antenna mismatch faults. |
Use Scenario: Supplying 1.5V to Bluetooth LE audio codec ICs in wireless rear-seat entertainment systems. IC Role / Device Role / Timing Role: Enable-controlled standby rail that powers audio processing only during active streaming. Use Value: 60µA quiescent current extends battery runtime in always-on listening mode; EN pin enables precise power gating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLD1117LV15 | 1.5V fixed, 1A output, higher IQ (120µA), no auto-discharge, SOT-223 package | Larger footprint; lacks wettable flanks and AEC-Q100 Grade 1 rating | Prefer AP7347DQ-15FDZW-7 for space-constrained, AOI-required automotive PCBs |
| MCP1826T-1502E/DB | 1.5V fixed, 500mA, 90µA IQ, no thermal shutdown, DFN-8 package | Non-automotive qualified; missing short-circuit foldback and AEC-Q100 compliance | AP7347DQ-15FDZW-7 required where PPAP documentation and IATF 16949 traceability are mandated |
Compared with TLD1117LV15 and MCP1826T-1502E/DB, AP7347DQ-15FDZW-7 uniquely combines AEC-Q100 Grade 1 qualification, wettable flank packaging for automated inspection, auto-discharge functionality, and 60µA quiescent current-making it the only choice for production ADAS camera modules requiring zero-defect manufacturing and full automotive change control.
Availability
AP7347DQ-15FDZW-7 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC power domains, radar receiver biasing, and wireless audio link designs requiring stable component supply across extended temperature ranges and strict automotive quality standards.
Supply support for AP7347DQ-15FDZW-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 AP7347DQ series belongs to Diodes' automotive-qualified LDO portfolio, engineered specifically for noise-sensitive power rails in ADAS, infotainment, and connectivity systems requiring AEC-Q100 compliance and PPAP support.
FAQ
What is the minimum input voltage required for AP7347DQ-15FDZW-7 to maintain regulation at 500mA?
The dropout voltage is 0.55V (typical) at 500mA for 1.5V output, so VIN must be ≥2.05V to sustain regulation. At worst-case (0.66V dropout), VIN ≥2.16V is required. This enables operation during automotive cold-crank events where battery voltage dips to 2.0V–2.2V.
Does AP7347DQ-15FDZW-7 require an external discharge resistor?
No. The device integrates an internal 30Ω NMOS discharge path between VOUT and GND when EN is low, eliminating need for external components. This ensures rapid VOUT decay (<100µs typical) during power-down sequences without adding board area or BOM cost.
Can AP7347DQ-15FDZW-7 be used in non-automotive applications?
Yes. While AEC-Q100 qualified and manufactured in IATF 16949 facilities, its electrical specs (1.7V–5.5V input, 60µA IQ, 75dB PSRR) make it suitable for industrial IoT edge nodes, medical portable devices, and test equipment requiring low-noise, high-accuracy 1.5V regulation.
How does the W-DFN2020-6 (FDZW) package improve manufacturability versus SOT25?
The wettable flank design enables automated optical inspection (AOI) of solder fillets on all side pins, critical for zero-defect automotive assembly. Its 2.0mm × 2.0mm footprint saves >60% board area versus SOT25, and θJA = 54°C/W improves thermal performance over SOT25's 140°C/W-reducing need for thermal vias.
AP7347DQ-15FDZW-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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.66V @ 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-15FDZW-7 FAQ
1.How can I place an order for AP7347DQ-15FDZW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7347DQ-15FDZW-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-15FDZW-7 reliable?
The price and inventory of AP7347DQ-15FDZW-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-15FDZW-7 is usually 5 days.
3.What payment methods are accepted for AP7347DQ-15FDZW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7347DQ-15FDZW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7347DQ-15FDZW-7?
AP7347DQ-15FDZW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7347DQ-15FDZW-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-15FDZW-7?
For technical support, including AP7347DQ-15FDZW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7347DQ-15FDZW-7 requirements.
6.How does Aetrix verify that AP7347DQ-15FDZW-7 is sourced from the original manufacturer or authorized distributors?
All AP7347DQ-15FDZW-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-15FDZW-7 meets industry standards.
7.What is the process for return or replacement of AP7347DQ-15FDZW-7?
All AP7347DQ-15FDZW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7347DQ-15FDZW-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-15FDZW-7 part is unused and in its original packaging.
Return procedure for AP7347DQ-15FDZW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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