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Diodes Incorporated AP7583AQ-FDZW-7
- Part No.:
- AP7583AQ-FDZW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
AP7583AQ-FDZW-7.pdf
- Description:
- LDO CMOS LOWCURR W-DFN2020-6 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:5,018
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Product details
Overview
AP7583AQ-FDZW-7 from Diodes Incorporated is an AEC-Q100 qualified automotive-grade 300mA ultra-low-dropout (ULDO) regulator with power-good (PG) output, 3V–42V input range, 3.3V fixed output, and 3µA quiescent current. It delivers stable voltage to always-on systems such as CAN transceivers and microcontrollers in harsh automotive environments.
For engineers reviewing the AP7583AQ-FDZW-7 datasheet, AP7583AQ-FDZW-7 pinout, AP7583AQ-FDZW-7 application, or AP7583AQ-FDZW-7 equivalent, key selection criteria include PG monitoring capability, thermal shutdown at +175°C, ±1.5% output accuracy, and compatibility with low-ESR ceramic capacitors in compact W-DFN2020-6 packaging.
Technical Context
The AP7583AQ integrates a precision 1.207V reference, error amplifier, current-limit circuit, thermal shutdown protection, and open-drain PG output with internal pull-up. Its architecture supports both fixed-output (3.3V/5V) and adjustable configurations via FB pin.
It operates across -40°C to +125°C junction temperature, features UVLO activation at 2.4V (±0.3V hysteresis), and maintains stability with 4.7µF–100µF ceramic output capacitance-enabling robust performance in battery-powered automotive subsystems without minimum load requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3V to 42V - supports direct connection to automotive battery rails including cold-crank (≥4.5V) and load-dump (≤42V) conditions. |
| Output Voltage | 3.3V fixed - tightly regulated ±1.5% over temperature and line/load, suitable for MCU I/O and CAN transceiver VCC. |
| Max Output Current | 300mA - sufficient for powering dual-core MCUs or multiple LIN/CAN nodes simultaneously. |
| Dropout Voltage | 320mV @300mA - enables regulation down to VIN = 3.62V, critical for start-stop operation. |
| Quiescent Current | 3µA typ - minimizes standby power loss in always-on domains like body control modules. |
| Power-Good Threshold | 90–94% of VOUT rising, 88–92% falling - provides precise supply monitoring for sequencing and fault detection. |
| Thermal Shutdown | +175°C with +20°C hysteresis - protects against sustained overload in enclosed ECUs without external thermal sensors. |
Pinout & Package
AP7583AQ-FDZW-7 uses the W-DFN2020-6 (SWP, Type A1) package: 2.0mm × 2.0mm, 0.65mm pitch, exposed thermal pad. Optimized for high-power-density automotive PCB layouts with minimal footprint and enhanced thermal dissipation via soldered EP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Input supply rail | Accepts 3–42V; requires local 10µF ceramic decoupling within 2mm for EMI suppression. |
| 2 EN | Enable control input | Active-high logic (VIH ≥1.7V); ties to VIN for permanent enable or microcontroller GPIO for controlled startup. |
| 3 GND | Ground reference | Primary return path; must be connected to large copper pour under EP for thermal and noise integrity. |
| 4 VOUT | Regulated output | 3.3V ±1.5%; supports 4.7–100µF ceramic output capacitor without external compensation. |
| 5 PG | Power-good open-drain | Signals valid regulation (high-Z) or fault (pulled low); requires external pull-up for MCU interrupt or reset assertion. |
| 6 FB/NC | Feedback / No-connect | NC for fixed 3.3V version; left unconnected per datasheet; not used in this variant. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 3µA typical quiescent current enables >10-year battery life in always-on vehicle modules. |
| Integrated PG monitor | Open-drain PG pin eliminates need for external supervisor IC in multi-rail sequencing designs. |
| AEC-Q100 Grade 1 | Qualified for -40°C to +125°C operation with PPAP support-meets OEM requirements for engine bay and cabin ECUs. |
| Robust protection suite | Includes current limit (310–690mA), thermal shutdown (+175°C), and UVLO-reduces system-level fault handling complexity. |
| Low-ESR capacitor compatible | Stable with 4.7µF ceramic output cap-enables smaller BOM and higher reliability vs. tantalum alternatives. |
Applications
| Automotive Body Control Module (BCM) | EV Battery Management System (BMS) Sensor Interface |
|---|---|
Use Scenario: Powering low-power microcontrollers and LIN transceivers in door modules, seat controllers, and lighting nodes. IC Role / Device Role / Timing Role: Primary 3.3V supply with PG signaling for safe MCU boot and watchdog supervision. Use Value: 3µA IQ extends sleep-mode battery life; wide VIN accommodates 12V battery fluctuations during ignition cycles. | Use Scenario: Supplying isolated ADCs, temperature sensors, and CAN transceivers in high-voltage battery packs. IC Role / Device Role / Timing Role: Post-regulator after HV-DCDC converter; PG output validates supply before enabling cell monitoring. Use Value: 42V max VIN withstands transient spikes up to ISO 7637-2 Pulse 5a; ±1.5% accuracy ensures sensor measurement fidelity. |
| Transmission Control Unit (TCU) | Automotive Head Unit (HU) Standby Domain |
Use Scenario: Providing always-on 3.3V rail to real-time safety-critical MCUs managing gear shifting logic. IC Role / Device Role / Timing Role: Fault-tolerant LDO with thermal/current limiting and PG feedback to ASIL-B compliant diagnostics. Use Value: Thermal shutdown + hysteresis prevents latch-up during oil-cooled TCU overheating; PG confirms regulation before CAN message transmission. | Use Scenario: Powering memory retention, RTC, and wake-up circuitry in infotainment head units during vehicle sleep mode. IC Role / Device Role / Timing Role: Standby regulator with ultra-low IQ and fast PG response (<30µs) for rapid system wake-up. Use Value: 320mV dropout allows operation down to 3.62V VIN-critical during low-battery accessory mode; PG triggers fast CPU resume. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PQDBVRQ1 | 300mA, 3.3V, 40V max VIN, 4.5µA IQ, no PG output | Lacks power-good signaling; requires external supervisor for sequencing | Select when PG is unnecessary and lower cost is prioritized over diagnostic capability |
| TPS7B8233QDGNRQ1 | 300mA, 3.3V, 40V max VIN, 3.5µA IQ, integrated PG with programmable delay | Includes adjustable PG delay and higher PSRR (75dB), but larger 8-pin VSSOP package | Select when timing-controlled power sequencing or improved ripple rejection is required |
Compared with TLV73333PQDBVRQ1 and TPS7B8233QDGNRQ1, the AP7583AQ-FDZW-7 offers the lowest quiescent current (3µA), smallest footprint (W-DFN2020-6), and automotive-qualified PG functionality without external components-making it optimal for space-constrained, always-on automotive nodes requiring autonomous fault reporting.
Availability
AP7583AQ-FDZW-7 is available at Aetrix Electronics and suitable for automotive body control modules, EV battery management sensor interfaces, and transmission control units requiring stable component supply across extended temperature and voltage ranges.
Supply support for AP7583AQ-FDZW-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 solutions for automotive, industrial, and computing markets.
The AP7583Q/AQ series belongs to Diodes' automotive power management portfolio, designed specifically to meet AEC-Q100 Grade 1 requirements for battery-supplied ECUs operating under extreme voltage transients and thermal stress.
FAQ
What is the function of the PG pin on AP7583AQ-FDZW-7?
The PG (power-good) pin is an open-drain output that signals valid regulation: it enters high-impedance state when VOUT reaches ≥90% of nominal (3.3V), and is actively pulled low if VOUT drops below 92% or EN is deasserted. It requires an external pull-up resistor to interface with MCU GPIO or reset controllers for supply monitoring and sequencing.
Can AP7583AQ-FDZW-7 operate with input voltages below 3V?
No. The absolute minimum input voltage is 3.0V per datasheet specifications. Below this threshold, the device enters undervoltage lockout (UVLO) and disables output. The UVLO turn-on threshold is 2.4V ±0.3V with 0.2V hysteresis, but functional regulation only begins once VIN exceeds 3.0V and remains within the 3V–42V recommended operating range.
Is an external capacitor required on the FB pin for AP7583AQ-FDZW-7?
No. The AP7583AQ-FDZW-7 is the fixed 3.3V output version; the FB pin is internally connected and functions as NC (no-connect). Datasheet Pin Descriptions explicitly state FB/NC is "not connected internally" for fixed-output variants, and recommends leaving it unconnected-not tied to ground or VOUT-to avoid interference with internal feedback network.
How does thermal performance differ between W-DFN2020-6 and MSOP-8EP packages?
The W-DFN2020-6 (FDZW) has θJA = 80.4°C/W, while MSOP-8EP is 36.1°C/W-meaning the latter dissipates heat more effectively in standard JEDEC test boards. However, FDZW's exposed pad enables superior thermal performance in production PCBs with optimized copper area: when the EP is soldered to ≥100mm² GND copper, its effective θJA approaches 45°C/W, making it viable for 300mA loads in compact automotive modules where footprint is constrained.
AP7583AQ-FDZW-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:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- 5V
- Voltage Dropout (Max):
- 0.7V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 6 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (100Hz)
- Control Features:
- Current Limit, Enable, Power Good
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
- 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)
AP7583AQ-FDZW-7 FAQ
1.How can I place an order for AP7583AQ-FDZW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7583AQ-FDZW-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 AP7583AQ-FDZW-7 reliable?
The price and inventory of AP7583AQ-FDZW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7583AQ-FDZW-7 is usually 5 days.
3.What payment methods are accepted for AP7583AQ-FDZW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7583AQ-FDZW-7 transactions.
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4.How is shipping managed for AP7583AQ-FDZW-7?
AP7583AQ-FDZW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7583AQ-FDZW-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 AP7583AQ-FDZW-7?
For technical support, including AP7583AQ-FDZW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7583AQ-FDZW-7 requirements.
6.How does Aetrix verify that AP7583AQ-FDZW-7 is sourced from the original manufacturer or authorized distributors?
All AP7583AQ-FDZW-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 AP7583AQ-FDZW-7 meets industry standards.
7.What is the process for return or replacement of AP7583AQ-FDZW-7?
All AP7583AQ-FDZW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7583AQ-FDZW-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 AP7583AQ-FDZW-7 part is unused and in its original packaging.
Return procedure for AP7583AQ-FDZW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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