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Diodes Incorporated AP7347DQ-50W5-7
- Part No.:
- AP7347DQ-50W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7347DQ-50W5-7.pdf
- Description:
- LDO CMOS LOWCURR SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:13,596
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Product details
Overview
AP7347DQ-50W5-7 from Diodes Incorporated is an automotive-grade 500mA low-dropout linear regulator with fixed 5.0V 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-50W5-7 datasheet, AP7347DQ-50W5-7 pinout, AP7347DQ-50W5-7 application, or AP7347DQ-50W5-7 equivalent, key selection criteria include AEC-Q100 qualification, SOT25 (Type A1) package thermal performance (θJA = 140°C/W), dropout voltage ≤320mV at 500mA (for VOUT = 5.0V), and EN logic thresholds (VIL ≤ 0.5V, VIH ≥ 1.25V).
Technical Context
The AP7347DQ-50W5-7 implements a CMOS-based LDO architecture with integrated voltage reference, error amplifier, current-limit circuit, and NMOS pass transistor with auto-discharge path. Its design targets automotive power integrity requirements including fast load transient response (<10µs settling time) and stable operation with 1µF ceramic input/output capacitors.
It supports wide input range (1.7V to 5.5V), operates across –40°C to +125°C ambient, and includes thermal shutdown (TSHDN = +170°C, hysteresis = +20°C) and fold-back short-circuit protection (ISC ≈ 180mA). The device is qualified to AEC-Q100 Grade 1 and manufactured in IATF 16949 certified facilities.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±1% - ensures stable MCU core or sensor bias supply without external feedback network. |
| Max Output Current | 500mA - supports high-current automotive loads such as image sensors or RF transceivers. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC/DC converters in mixed-signal domains. |
| Output Noise | 60µVrms (10Hz–100kHz) - minimizes jitter in clock-sensitive analog circuits like ADCs or RF synthesizers. |
| Quiescent Current | 60µA - enables ultra-low-power standby modes in always-on vehicle subsystems. |
| Dropout Voltage | ≤320mV at 500mA - allows operation from 5.3V input while maintaining regulation under worst-case conditions. |
| Enable Thresholds | VIL ≤ 0.5V / VIH ≥ 1.25V - compatible with 1.8V/3.3V/5V logic families without level-shifting. |
| Thermal Resistance | θJA = 140°C/W (SOT25) - defines maximum power dissipation (0.89W) before thermal shutdown in standard JEDEC board layout. |
Pinout & Package
AP7347DQ-50W5-7 is packaged in SOT25 (Type A1), a 5-pin surface-mount package with exposed pad not used for electrical connection. Thermal performance relies on PCB copper area connected to Pin 2 (GND) and optional EP grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main power input; requires local 1µF ceramic decoupling to minimize input impedance and prevent rail collapse during load steps. |
| 2 | GND | Power ground reference; must connect to low-impedance PCB ground plane to ensure stability and thermal conduction. |
| 3 | EN | Active-high enable; floating state is undefined-must be tied to VIN or controlled logic to avoid unintended shutdown. |
| 4 | VOUT | Regulated 5.0V output; requires 1µF ceramic capacitor placed adjacent to pin for transient response and EMI suppression. |
| 5 | NC | No-connect terminal; recommended to tie to GND to maximize thermal copper area and reduce trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with PPAP documentation support for automotive OEM programs. |
| Auto-discharge function | 30Ω internal NMOS discharge path activated when EN = low-ensures rapid VOUT decay to prevent latch-up in multi-rail sequencing. |
| Low-noise CMOS architecture | 60µVrms noise floor enables direct powering of precision analog front-ends without additional filtering. |
| High PSRR with minimal capacitance | Maintains 75dB rejection at 1kHz using only 1µF ceramic CIN/COUT-reduces BOM count and board space vs. legacy bipolar LDOs. |
| Thermal shutdown with hysteresis | +170°C trip point with +20°C hysteresis prevents cycling during sustained overload, improving system reliability. |
Applications
| Infotainment Power Supply | ADAS Camera Module POL |
|---|---|
Use Scenario: Powering audio DSPs, touch controllers, and display drivers in head-unit systems subject to battery transients and EMI. IC Role / Device Role / Timing Role: Primary 5.0V post-regulator delivering clean, sequenced supply after buck converter. Use Value: 75dB PSRR rejects ripple from 2MHz DC/DC switching, while ±1% accuracy maintains USB compliance and audio codec timing margins. |
Use Scenario: Local 5.0V supply for CMOS image sensors and ISP processors in forward-facing driver-assistance cameras. IC Role / Device Role / Timing Role: Point-of-load regulator providing low-noise bias for analog pixel readout and ADC reference. Use Value: 60µVrms noise prevents fixed-pattern noise in raw image data; auto-discharge ensures safe power-down during vehicle ignition-off. |
| Automotive RF Transceiver Supply | Wireless Connectivity Module |
Use Scenario: Powering UWB, Bluetooth LE, or Wi-Fi 6 transceivers in telematics control units operating near high-frequency antennas. IC Role / Device Role / Timing Role: Dedicated low-noise 5.0V rail isolating RF analog sections from digital noise coupling. Use Value: High PSRR and low output impedance suppress substrate noise injection into VCOs and PLLs, preserving EVM and spectral mask compliance. |
Use Scenario: Supporting dual-band cellular/V2X modems requiring stable 5.0V for PMIC interface and SIM card power management. IC Role / Device Role / Timing Role: Always-on LDO enabling fast modem wake-up from deep sleep with <60µA quiescent draw. Use Value: 60µA IQ extends battery backup runtime during ignition-off; AEC-Q100 qualification ensures field reliability over 15-year vehicle lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B502MR-G | Same 500mA rating, ±2% VOUT accuracy, no auto-discharge, θJA = 160°C/W (SOT25) | Lacks AEC-Q100 qualification and discharge path-unsuitable for automotive safety-critical sequencing. | Select only for non-automotive industrial use where cost sensitivity outweighs functional safety requirements. |
| Richtek RT9080L-50PU5 | 500mA, ±1.5% accuracy, 65dB PSRR, 100µVrms noise, no AEC-Q100, θJA = 150°C/W (SOT25) | Higher noise and lower PSRR limit use in RF/analog signal chains; lacks automotive change control. | Acceptable for consumer-grade automotive accessories but not for OEM-tier ADAS or infotainment modules. |
Compared with XC6210B502MR-G and RT9080L-50PU5, the AP7347DQ-50W5-7 delivers superior noise/PSRR performance, guaranteed automotive qualification, and integrated discharge-making it the only option meeting full OEM power-rail requirements for camera and RF subsystems.
Availability
AP7347DQ-50W5-7 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and wireless connectivity designs requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for AP7347DQ-50W5-7 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 ICs for automotive, industrial, and computing markets, with ISO/TS 16949 and IATF 16949 certified manufacturing.
The AP7347DQ belongs to Diodes' automotive-qualified LDO portfolio, engineered specifically for noise-sensitive point-of-load regulation in ADAS, infotainment, and telematics systems demanding AEC-Q100 Grade 1 reliability.
FAQ
What is the minimum input voltage required for AP7347DQ-50W5-7 to regulate 5.0V output at 500mA?
The minimum input voltage is defined by dropout: at 500mA load and VOUT = 5.0V, max dropout is 320mV per datasheet (Table 1, "Dropout Voltage" row for 4.0V ≤ VOUT < 5.0V). Thus, VIN must be ≥ 5.32V to maintain regulation. Below this, output collapses linearly with input.
Can AP7347DQ-50W5-7 be used without connecting the NC pin?
Yes-the NC pin (Pin 5) is internally unconnected and may be left floating, but Diodes recommends tying it to GND to maximize PCB copper area for thermal dissipation and reduce parasitic inductance in high-frequency noise paths.
Does AP7347DQ-50W5-7 require an external discharge resistor for safe power-down?
No-it integrates an internal 30Ω NMOS discharge path activated automatically when EN is pulled low, ensuring VOUT decays rapidly without external components. This eliminates need for discrete resistors and simplifies sequencing in multi-rail systems.
Is the SOT25 package of AP7347DQ-50W5-7 compatible with standard reflow profiles for lead-free assembly?
Yes-the SOT25 (Type A1) package is rated Moisture Sensitivity Level 1 per J-STD-020 and uses matte tin-plated leads compliant with MIL-STD-202 Method 208, supporting standard Pb-free reflow profiles up to peak 260°C without preconditioning.
AP7347DQ-50W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.32V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 125 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7347DQ-50W5-7 FAQ
1.How can I place an order for AP7347DQ-50W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7347DQ-50W5-7 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-50W5-7 reliable?
The price and inventory of AP7347DQ-50W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7347DQ-50W5-7 is usually 5 days.
3.What payment methods are accepted for AP7347DQ-50W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7347DQ-50W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7347DQ-50W5-7?
AP7347DQ-50W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7347DQ-50W5-7 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-50W5-7?
For technical support, including AP7347DQ-50W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7347DQ-50W5-7 requirements.
6.How does Aetrix verify that AP7347DQ-50W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7347DQ-50W5-7 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-50W5-7 meets industry standards.
7.What is the process for return or replacement of AP7347DQ-50W5-7?
All AP7347DQ-50W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7347DQ-50W5-7, 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-50W5-7 part is unused and in its original packaging.
Return procedure for AP7347DQ-50W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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