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Diodes Incorporated AP7347DQ-105FDZW-7
- Part No.:
- AP7347DQ-105FDZW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
AP7347DQ-105FDZW-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-105FDZW-7 from Diodes Incorporated is an automotive-grade 500mA low-dropout linear regulator with fixed 1.05V output, ±1% accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 60µA quiescent current - designed for noise-sensitive ADAS camera power rails and infotainment domain controllers.
For engineers reviewing the AP7347DQ-105FDZW-7 datasheet, AP7347DQ-105FDZW-7 pinout, AP7347DQ-105FDZW-7 application, or AP7347DQ-105FDZW-7 equivalent, this page delivers verified package mapping (W-DFN2020-6), terminal functions, thermal resistance (θJA = 54°C/W), enable control thresholds, and AEC-Q100-compliant selection criteria for automotive LDO replacement.
Technical Context
The AP7347DQ-105FDZW-7 integrates a CMOS-based error amplifier, precision voltage reference, current-limit circuit, and thermal shutdown protection. Its enable input supports active-high logic control with 1.25V minimum high threshold and 0.5V maximum low threshold, enabling precise system-level power sequencing in multi-rail automotive ECUs.
It delivers regulated 1.05V output across -40°C to +125°C ambient, with dropout voltage as low as 0.75V at 500mA (for VOUT ≥ 1.0V), and features auto-discharge via internal 30Ω N-channel MOSFET when disabled - critical for fast rail collapse in safety-critical camera modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.05V ±1% - ensures stable core voltage for 1.0V–1.1V logic domains in automotive SoCs. |
| Max Output Current | 500mA - sufficient to power dual-lane MIPI CSI-2 image sensor interfaces without derating. |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC/DC converters in compact ADAS PCBs. |
| Output Noise | 60µVrms (10Hz–100kHz) - prevents SNR degradation in analog front-end circuits of radar or camera ISPs. |
| Quiescent Current | 60µA typical - enables always-on functionality in vehicle wake-up circuits while meeting ISO 26262 ASIL-B leakage budgets. |
| Dropout Voltage | 0.75V at 500mA (1.05V output) - allows operation from 1.8V intermediate rail with margin for battery droop during cold-crank. |
| Thermal Resistance | θJA = 54°C/W (W-DFN2020-6) - supports 500mA continuous load at +85°C ambient with minimal copper area. |
Pinout & Package
AP7347DQ-105FDZW-7 uses the W-DFN2020-6 (SWP) wettable flank package (2.0mm × 2.0mm, 0.75mm height), optimized for automated optical inspection (AOI) and thermal performance via exposed pad (EP) connection to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 1.05V output - must be decoupled with ≥1µF ceramic capacitor placed within 2mm of pin. |
| 2, 5 | NC | No-connect terminals - recommended to tie to GND for enhanced thermal conduction and EMI shielding. |
| 3 | GND | Power ground reference - requires low-impedance connection to solid ground plane beneath EP. |
| 4 | EN | Active-high enable - driven >1.25V to activate; <0.5V to disable; must not float; supports 1µA leakage max. |
| 6 | VIN | Input supply (1.7–5.5V) - requires local 1µF ceramic decoupling; wide trace routing essential for 500mA paths. |
| EP | Exposed Pad | Thermal pad - must connect to ≥100mm² GND copper area; improves θJA by >30% vs. SOT25. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Validated for -40°C to +125°C operation - meets automotive power rail reliability requirements without derating. |
| Auto-discharge function | 30Ω internal N-MOSFET discharges VOUT when EN = low - eliminates hold-up time in safety-shutdown sequences. |
| Low-noise architecture | 60µVrms noise floor with no external bypass capacitor needed - simplifies layout for space-constrained camera modules. |
| High PSRR up to 1MHz | 75dB @ 1kHz, >40dB @ 100kHz - rejects ripple from 2MHz buck converters powering adjacent domains. |
| Wettable flank package | W-DFN2020-6 SWP footprint - enables AOI-compatible solder joint inspection for zero-defect automotive manufacturing. |
Applications
| ADAS Camera Power Rail | Infotainment Domain Controller Core |
|---|---|
Use Scenario: Powers image signal processor (ISP) core voltage in rear-view camera module operating under ISO 26262 ASIL-B. IC Role / Device Role / Timing Role: Primary 1.05V LDO delivering clean, sequenced power with fast enable/disable response (<10µs). Use Value: 60µVrms noise prevents pixel corruption; 500mA capacity supports dual-sensor ISP loads; AEC-Q100 qualification ensures field reliability. |
Use Scenario: Supplies 1.05V core rail for ARM Cortex-A76 application processor in head-unit infotainment ECU. IC Role / Device Role / Timing Role: Secondary LDO post-regulator after main PMIC, providing ultra-low-noise domain-specific voltage. Use Value: 75dB PSRR isolates processor from DC/DC switching noise; 60µA IQ enables low-power sleep modes compliant with UNECE R155 software update requirements. |
| Automotive Wireless Communication | Radar Signal Chain Biasing |
Use Scenario: Provides stable 1.05V bias to RF transceiver IC in V2X (DSRC/C-V2X) telematics module. IC Role / Device Role / Timing Role: Low-noise auxiliary LDO for RFIC analog sections requiring minimal phase noise coupling. Use Value: 60µVrms noise avoids reciprocal mixing degradation; ±1% accuracy maintains RFIC gain linearity across temperature. |
Use Scenario: Supplies 1.05V analog bias to high-speed ADC and clock buffer in 77GHz radar front-end. IC Role / Device Role / Timing Role: Precision LDO for timing-critical analog signal chain components where jitter sensitivity is paramount. Use Value: 75dB PSRR suppresses digital switching noise from MCU cores; thermal shutdown at +170°C protects against radar enclosure overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6217D105MR-G | Same 1.05V output, but only 300mA rated; no AEC-Q100 qualification; θJA = 120°C/W (SOT-25) | Limited to non-safety-critical consumer-grade infotainment accessories | Select only if automotive qualification and 500mA load are not required. |
| Richtek RT9080L-105GJ6F | 1.05V output, 500mA, but PSRR = 65dB @ 1kHz; no auto-discharge; QFN1.6x1.6-6 package lacks wettable flanks | Suitable for cost-sensitive industrial cameras, not ASIL-B systems requiring AOI-verified solder joints | Prefer only when PSRR margin >10dB is acceptable and optical inspection is not mandated. |
Compared with XC6217D105MR-G and RT9080L-105GJ6F, AP7347DQ-105FDZW-7 uniquely combines AEC-Q100 Grade 1, 500mA capability, 75dB PSRR, auto-discharge, and wettable-flank packaging - making it the only drop-in solution for ASIL-B camera and radar power rails requiring full production traceability and zero-defect assembly.
Availability
AP7347DQ-105FDZW-7 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment domain controllers, and radar signal chain biasing requiring stable component supply, AEC-Q100 compliance, and wettable-flank package assurance.
Supply support for AP7347DQ-105FDZW-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 power management, signal integrity, and automotive-qualified components.
The AP7347DQ series belongs to Diodes' automotive LDO portfolio, engineered specifically for noise-sensitive, safety-critical power rails in ADAS, infotainment, and vehicle connectivity systems - emphasizing PSRR, low noise, and AEC-Q100 robustness.
FAQ
What is the minimum input voltage required for AP7347DQ-105FDZW-7 to regulate 1.05V at 500mA?
The minimum input voltage is 1.7V per datasheet specifications. At 500mA load, the dropout voltage is 0.75V (typical), so VIN must be ≥1.8V to maintain regulation with margin. Below 1.7V, the device enters undervoltage lockout and disables output.
Does AP7347DQ-105FDZW-7 require an external discharge resistor?
No. The device integrates an internal 30Ω N-channel MOSFET that automatically discharges VOUT when EN is pulled low. This eliminates need for external resistors, reduces BOM count, and ensures consistent discharge timing across temperature and process variation.
Can AP7347DQ-105FDZW-7 be used in non-automotive applications?
Yes - its electrical specs (60µA IQ, 75dB PSRR, 60µVrms noise) are valuable in industrial imaging and test equipment. However, AEC-Q100 qualification, PPAP documentation, and IATF 16949 manufacturing are exclusive to automotive use cases and do not apply outside that scope.
How is thermal performance affected if the EP pad is left unconnected?
Leaving the EP pad unconnected increases θJA from 54°C/W to >100°C/W, reducing safe continuous output current to ~200mA at +85°C ambient. Diodes recommends connecting EP to a ≥100mm² GND copper area to achieve rated 500mA performance and avoid thermal shutdown.
AP7347DQ-105FDZW-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):
- 1.05V
- 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-105FDZW-7 FAQ
1.How can I place an order for AP7347DQ-105FDZW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7347DQ-105FDZW-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-105FDZW-7 reliable?
The price and inventory of AP7347DQ-105FDZW-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-105FDZW-7 is usually 5 days.
3.What payment methods are accepted for AP7347DQ-105FDZW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7347DQ-105FDZW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7347DQ-105FDZW-7?
AP7347DQ-105FDZW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7347DQ-105FDZW-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-105FDZW-7?
For technical support, including AP7347DQ-105FDZW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7347DQ-105FDZW-7 requirements.
6.How does Aetrix verify that AP7347DQ-105FDZW-7 is sourced from the original manufacturer or authorized distributors?
All AP7347DQ-105FDZW-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-105FDZW-7 meets industry standards.
7.What is the process for return or replacement of AP7347DQ-105FDZW-7?
All AP7347DQ-105FDZW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7347DQ-105FDZW-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-105FDZW-7 part is unused and in its original packaging.
Return procedure for AP7347DQ-105FDZW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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