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Diodes Incorporated AP7347DQ-10FDZW-7
- Part No.:
- AP7347DQ-10FDZW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
AP7347DQ-10FDZW-7.pdf
- Description:
- LDO CMOS LOWCURR W-DFN2020-6 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:2,900
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Product details
Overview
AP7347DQ-10FDZW-7 from Diodes Incorporated is an AEC-Q100 qualified automotive-grade 1.0V fixed-output low-dropout 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-10FDZW-7 datasheet, AP7347DQ-10FDZW-7 pinout, AP7347DQ-10FDZW-7 application, or AP7347DQ-10FDZW-7 equivalent, key selection criteria include its WDFN2020-6 wettable flank package, 0.14–0.32V dropout at 500mA (for VOUT = 1.0V), 60µA quiescent current, and AEC-Q100 Grade 1 (−40°C to +125°C) qualification for automotive power integrity.
Technical Context
The AP7347DQ-10FDZW-7 integrates a CMOS-based LDO architecture with internal voltage reference, error amplifier, current-limit circuit, and NMOS pass transistor with auto-discharge path. Its enable input supports active-high logic control with defined thresholds (VEN(H) ≥ 1.25V, VEN(L) ≤ 0.5V) and <1µA leakage.
It delivers stable regulation across 1.7V–5.5V input range while maintaining 60µVrms noise and 75dB ripple rejection at 1kHz - enabled by low-ESR ceramic capacitor compatibility (1µF CIN/COUT) and optimized internal compensation. Thermal shutdown triggers at +170°C with +20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0V ±1% - ensures precise core voltage for 1V logic domains in automotive SoCs and image sensors. |
| Max Output Current | 500mA - supports high-current digital loads such as CIS image processors and RF transceivers without external boost. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC/DC converters in multi-rail automotive systems. |
| Output Noise | 60µVrms (10Hz–100kHz) - meets stringent noise requirements for analog front-ends in radar and camera signal chains. |
| Quiescent Current | 60µA - enables ultra-low-power standby operation in always-on vehicle subsystems like telematics wake-up circuits. |
| Dropout Voltage | 0.14V (typ.) at 500mA - allows operation from 1.14V input, critical for battery-backed 12V-to-1V POL conversion in cold-crank conditions. |
| Operating Temp | −40°C to +125°C ambient - validated for under-hood and cabin-mounted ADAS ECU applications per AEC-Q100 Grade 1. |
Pinout & Package
AP7347DQ-10FDZW-7 uses the W-DFN2020-6 (SWP) wettable flank package (2.0mm × 2.0mm, 0.65mm pitch), 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 1.0V output - connect directly to load with low-inductance path; place 1µF ceramic capacitor within 2mm. |
| 2, 5 | NC | No-connect terminals - internally unconnected; recommended to tie to GND for thermal conduction and EMI shielding. |
| 3 | GND | Power ground reference - must be connected to low-impedance PCB ground plane; shared with EP for thermal dissipation. |
| 4 | EN | Active-high enable - drives regulator ON when ≥1.25V; pulls into shutdown (<0.5V); requires no pull-up if tied to VIN. |
| 6 | VIN | Input supply (1.7–5.5V) - decouple with 1µF ceramic capacitor placed adjacent to pin; use wide trace for >500mA paths. |
| EP | Exposed Pad | Thermal interface - solder to large copper area connected to GND; improves θJA from 54°C/W to <40°C/W in production layout. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-Discharge Path | 30Ω NMOS discharge switch (VEN = 0V) - actively discharges VOUT within 100µs after shutdown, preventing back-powering of downstream logic. |
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C), PPAP-capable, manufactured in IATF 16949 facilities - satisfies OEM Tier-1 functional safety and traceability requirements. |
| Low-Noise Regulation | 60µVrms output noise with no external bypass capacitor - eliminates need for secondary filtering in RF and imaging power supplies. |
| Wettable Flank Packaging | W-DFN2020-6 (SWP) with side-wettable leads - enables 100% AOI solder-joint inspection for zero-defect automotive manufacturing. |
| Thermal Protection | +170°C shutdown with +20°C hysteresis - prevents latch-up during transient overload in compact ADAS camera housings. |
Applications
| ADAS Camera Power | Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Powering 1.0V image sensor cores and ISP processors in forward-facing driver-assistance cameras. IC Role / Device Role / Timing Role: Primary low-noise post-regulator supplying clean 1.0V to CIS analog and digital blocks. Use Value: 60µVrms noise and 75dB PSRR prevent image artifacts from switching noise generated by main system DC/DC converters. |
Use Scenario: Delivering stable 1.0V core voltage to application processors in automotive head units and digital clusters. IC Role / Device Role / Timing Role: Fixed-output LDO providing regulated supply for CPU/GPU logic domains requiring tight voltage tolerance. Use Value: ±1% output accuracy and 500mA capability ensure reliable operation across temperature and load transients during multimedia processing. |
| Automotive RF Transceiver Supply | Telematics Always-On Wake-Up Rail |
|
Use Scenario: Powering 1.0V VCOs, LNAs, and baseband ICs in cellular/V2X communication modules. IC Role / Device Role / Timing Role: Low-noise local regulator isolating sensitive RF circuitry from noisy system power rails. Use Value: 75dB PSRR at 1kHz rejects noise from PMIC switching frequencies, preserving RF signal integrity and EVM performance. |
Use Scenario: Providing ultra-low-quiescent 1.0V supply to CAN/LIN transceivers and microcontrollers in always-on telematics gateways. IC Role / Device Role / Timing Role: Enable-controlled standby rail enabling fast wake-up while minimizing battery drain during vehicle sleep mode. Use Value: 60µA IQ and 1µA shutdown current extend 12V battery life over multi-week parking cycles without compromising response time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73310PDBVR | 1.0V fixed, 300mA, 50µA IQ, SOT-23-5 package, no auto-discharge, AEC-Q100 Grade 2 (−40°C to +105°C) | Limited to lower current and narrower temp range; lacks wettable flank and discharge function. | Select only for cost-sensitive non-safety-critical modules where 300mA and −40°C to +105°C suffice. |
| NCP114AMX10T2G | 1.0V fixed, 300mA, 45µA IQ, TSOP-5 package, no enable, no auto-discharge, AEC-Q100 Grade 1 | Non-adjustable enable, no shutdown control, no discharge path, higher dropout (0.25V @ 300mA). | Use only in legacy designs requiring pin-for-pin replacement without enable or discharge functionality. |
Compared with TLV73310PDBVR and NCP114AMX10T2G, the AP7347DQ-10FDZW-7 uniquely combines 500mA drive, AEC-Q100 Grade 1, wettable flank packaging, and integrated auto-discharge - making it the only option qualified for next-generation ADAS camera and RF power delivery where reliability, noise, and layout inspectability are mandatory.
Availability
AP7347DQ-10FDZW-7 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC core rails, and telematics always-on wake-up circuits requiring stable component supply with full AEC-Q100 traceability and wettable flank manufacturability.
Supply support for AP7347DQ-10FDZW-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 point-of-load regulation in ADAS, infotainment, and wireless connectivity systems demanding AEC-Q100 compliance and advanced package inspection capability.
FAQ
What is the minimum input voltage required for AP7347DQ-10FDZW-7 to regulate 1.0V output at 500mA?
The minimum input voltage is determined by dropout: typical 0.14V at 500mA, so VIN(min) = 1.0V + 0.14V = 1.14V. However, the absolute minimum specified operating VIN is 1.7V per datasheet - this ensures guaranteed performance across temperature, process variation, and load transients. Below 1.7V, regulation is not assured despite theoretical dropout margin.
Does AP7347DQ-10FDZW-7 require an external discharge resistor for VOUT?
No. The device integrates an NMOS auto-discharge switch (30Ω typical) between VOUT and GND, activated automatically when EN is pulled low. This eliminates the need for external resistors, reduces BOM count, and ensures consistent discharge timing (<100µs) independent of PCB layout parasitics.
Can AP7347DQ-10FDZW-7 be used without connecting the exposed pad (EP)?
No. The EP is thermally and electrically critical: it serves as the primary thermal path and is internally connected to GND. Leaving it unconnected degrades θJA by >30°C/W and risks thermal shutdown under 500mA load. Per datasheet, EP must be soldered to a GND-connected copper area with ≥4 thermal vias.
Is the EN pin 5V-tolerant when VIN = 1.8V?
Yes. The EN pin has absolute maximum rating of 6.0V and operates correctly with logic-high signals up to VIN or 5.5V (whichever is lower), regardless of VIN level. At VIN = 1.8V, driving EN to 3.3V or 5V is safe and ensures robust noise immunity against ground bounce in automotive harness environments.
AP7347DQ-10FDZW-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):
- 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-10FDZW-7 FAQ
1.How can I place an order for AP7347DQ-10FDZW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7347DQ-10FDZW-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-10FDZW-7 reliable?
The price and inventory of AP7347DQ-10FDZW-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-10FDZW-7 is usually 5 days.
3.What payment methods are accepted for AP7347DQ-10FDZW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7347DQ-10FDZW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7347DQ-10FDZW-7?
AP7347DQ-10FDZW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7347DQ-10FDZW-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-10FDZW-7?
For technical support, including AP7347DQ-10FDZW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7347DQ-10FDZW-7 requirements.
6.How does Aetrix verify that AP7347DQ-10FDZW-7 is sourced from the original manufacturer or authorized distributors?
All AP7347DQ-10FDZW-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-10FDZW-7 meets industry standards.
7.What is the process for return or replacement of AP7347DQ-10FDZW-7?
All AP7347DQ-10FDZW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7347DQ-10FDZW-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-10FDZW-7 part is unused and in its original packaging.
Return procedure for AP7347DQ-10FDZW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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