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Diodes Incorporated AP7583Q-33FDZW-7
- Part No.:
- AP7583Q-33FDZW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
AP7583Q-33FDZW-7.pdf
- Description:
- LDO CMOS LOWCURR W-DFN2020-6 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:2,669
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Product details
Overview
AP7583Q-33FDZW-7 from Diodes Incorporated is a 3.3V fixed-output, 300mA ultra-low-dropout (ULDO) regulator for automotive battery-powered systems. It delivers 2.5µA quiescent current at light loads, supports 3V–42V input range, achieves 320mV dropout at 300mA, and is AEC-Q100 qualified for use in always-on MCU and CAN transceiver power rails.
For engineers reviewing the AP7583Q-33FDZW-7 datasheet, AP7583Q-33FDZW-7 pinout, AP7583Q-33FDZW-7 application, or AP7583Q-33FDZW-7 equivalent, key selection criteria include its automotive-grade thermal shutdown (175°C), ±1.5% output accuracy, compatibility with low-ESR ceramic capacitors, and W-DFN2020-6 (SWP) package with exposed thermal pad.
Technical Context
The AP7583Q-33FDZW-7 integrates a precision 1.2V reference, error amplifier, current-limit circuit, and chip-enable logic in a monolithic IC. Its internal architecture enables stable regulation across -40°C to +125°C junction temperature while maintaining 70dB PSRR at 100Hz and ±100ppm/°C output voltage drift.
It operates without minimum load requirement and features fast enable turn-on delay (0.8ms typ) and output ramp time (200µs typ). The device uses a PMOS pass transistor topology, enabling low dropout and high line/load regulation (±10mV and ±20mV respectively) under full 300mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1.5% - ensures reliable MCU core and CAN transceiver biasing within automotive supply tolerance bands. |
| Max Output Current | 300mA - sufficient to power dual-core automotive MCUs or multiple LIN/CAN nodes simultaneously. |
| Dropout Voltage | 320mV @ 300mA - enables stable 3.3V output even when battery drops to 3.62V, critical during cold-crank conditions. |
| Quiescent Current | 2.5µA typ - minimizes standby power loss in always-on domains like body control modules and gateway ECUs. |
| Input Voltage Range | 3V to 42V - accommodates 12V and 24V automotive batteries including load-dump transients up to 40V. |
| Thermal Shutdown | 175°C with 20°C hysteresis - protects against sustained overloads in confined under-hood environments. |
| PSRR | 70dB @ 100Hz - suppresses alternator ripple and switching noise before reaching sensitive analog/digital circuitry. |
Pinout & Package
AP7583Q-33FDZW-7 is housed in a thermally enhanced W-DFN2020-6 (SWP) Type A1 package (2.0mm × 2.0mm × 0.65mm) with an exposed thermal pad (EP) for PCB-level heat dissipation. Recommended layout uses ≥25mm² copper area connected to GND beneath the EP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Input voltage supply | Accepts 3V–42V unregulated battery input; requires local 10µF ceramic decoupling placed adjacent to pin. |
| 2 EN | Enable control input | Active-high logic interface (VIH ≥1.7V); ties to VIN for permanent ON operation in always-power-on applications. |
| 3 GND | Ground reference | Primary signal and power return path; must be low-impedance connection to minimize noise coupling. |
| 4 VOUT | Regulated output | Delivers stable 3.3V ±1.5%; requires 10µF ceramic output capacitor (4.7–100µF range supported). |
| 5 NC(Q) | No-connect (AP7583Q variant) | Internally unconnected; recommended to tie to GND for improved thermal conduction via PCB copper. |
| 6 FB/NC | Feedback / no-connect | Not used in fixed 3.3V version; left open or grounded per layout best practice for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 2.5µA typical quiescent current enables >10-year battery life in always-on vehicle modules with <10µA system sleep budget. |
| AEC-Q100 Grade 1 | Qualified for -40°C to +125°C operation with PPAP capability and IATF16949 manufacturing - meets OEM functional safety readiness requirements. |
| Low ESR capacitor support | Stable with 4.7–100µF ceramic output caps - eliminates need for costly tantalum or polymer alternatives in cost-sensitive ECUs. |
| Integrated protection | Combines current limit (310–690mA), thermal shutdown (175°C), and undervoltage lockout (2.4V typ) - reduces external protection component count by ≥3 devices. |
| Fast transient response | Load step recovery within 80µs (1→150mA) and line transient suppression <50mV peak deviation - maintains MCU clock stability during battery fluctuations. |
Applications
| Automotive Body Control Module (BCM) | Infotainment Head Unit Power Rail |
|---|---|
Use Scenario: Supplies 3.3V to microcontroller, CAN transceiver, and door-lock actuator drivers in centralized BCM. IC Role / Device Role / Timing Role: Primary always-on LDO delivering regulated power during ignition-off state and cold-crank events. Use Value: 2.5µA IQ prevents parasitic drain below 10µA threshold, extending parked vehicle battery life beyond 90 days. |
Use Scenario: Powers audio DSP, display controller, and USB-C PD interface in 12V automotive head unit. IC Role / Device Role / Timing Role: Secondary LDO after main DC-DC converter; provides clean, low-noise 3.3V for analog audio and high-speed digital interfaces. Use Value: 70dB PSRR at 100Hz attenuates alternator ripple, eliminating audible whine in speaker output and jitter in HDMI timing. |
| EV Battery Management System (BMS) Sensor Interface | Transmission Control Unit (TCU) MCU Core Supply |
Use Scenario: Powers isolated current-sense amplifiers and temperature sensors on high-voltage BMS daughterboards. IC Role / Device Role / Timing Role: Isolated domain LDO providing galvanically separated 3.3V rail referenced to battery pack ground. Use Value: 3V–42V input range tolerates 40V load-dump transients common in 400V EV architectures without external TVS clamping. |
Use Scenario: Supplies 3.3V to real-time safety-critical MCU (e.g., RH850, S32K) in transmission ECU with ASIL-B compliance. IC Role / Device Role / Timing Role: Safety-relevant power stage ensuring deterministic reset behavior and fault reporting during voltage sags. Use Value: ±1.5% output accuracy and 175°C thermal shutdown meet ISO 26262 hardware metrics for diagnostic coverage of power delivery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7583AQ-33FDZW-7 | Includes open-drain PG output (90–94% VOUT threshold); 3µA IQ vs. 2.5µA | Required where power sequencing or supply monitoring is needed (e.g., multi-rail ECUs) | Select when system-level fault detection or coordinated power-up/down timing is mandated. |
| TLE42744G V33 | Higher IQ (15µA), lower max current (250mA), TO-252 package only | Limited to non-compact layouts; lacks PG and adjustable option | Choose only if legacy footprint compatibility or Infineon ecosystem alignment outweighs efficiency and feature trade-offs. |
Compared with AP7583AQ-33FDZW-7, the AP7583Q-33FDZW-7 saves 0.5µA in quiescent current and eliminates PG pin routing complexity; versus TLE42744G V33, it delivers 50mA more output current in half the footprint and cuts IQ by 83%, directly extending battery hold-up time in always-on domains.
Availability
AP7583Q-33FDZW-7 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment head units, and EV battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP7583Q-33FDZW-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 company specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, and consumer markets, with design centers across Asia, Europe, and North America.
The AP7583Q/AQ series belongs to Diodes' automotive-grade power management portfolio, engineered specifically for battery-powered ECUs demanding ultra-low IQ, wide input range, and AEC-Q100 reliability in harsh under-hood environments.
FAQ
What is the maximum allowable input voltage for continuous operation?
The AP7583Q-33FDZW-7 supports continuous operation up to 42V input, with absolute maximum rating of 45V. It is designed to withstand automotive load-dump transients per ISO 7637-2 Pulse 5a (40V, 100ms), provided appropriate input capacitance (≥10µF ceramic) and board-level thermal design are implemented.
Can this LDO operate without an output capacitor?
No - the AP7583Q-33FDZW-7 requires a minimum 4.7µF ceramic output capacitor for stability across its full operating range. The datasheet specifies 10µF as the recommended value; omitting or undersizing the capacitor risks oscillation, poor transient response, and potential thermal shutdown under load.
Is the NC pin on the W-DFN2020-6 package required to be grounded?
The NC pin (Pin 5) is internally unconnected but should be tied to GND in PCB layout to maximize thermal conduction through the adjacent copper pour. This improves θJA by up to 15% in standard JEDEC test boards and enhances reliability during sustained 300mA operation at elevated ambient temperatures.
Does this part support adjustable output voltage configurations?
No - AP7583Q-33FDZW-7 is a fixed 3.3V output variant. Adjustable versions (e.g., AP7583Q-FDZW-7) use the FB pin with external resistor dividers to set outputs from 1.2V to 5.0V. This part's FB/NC pin is unused and must not be connected to feedback networks.
AP7583Q-33FDZW-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):
- 42V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.7V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 4 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)
AP7583Q-33FDZW-7 FAQ
1.How can I place an order for AP7583Q-33FDZW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7583Q-33FDZW-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 AP7583Q-33FDZW-7 reliable?
The price and inventory of AP7583Q-33FDZW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7583Q-33FDZW-7 is usually 5 days.
3.What payment methods are accepted for AP7583Q-33FDZW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7583Q-33FDZW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7583Q-33FDZW-7?
AP7583Q-33FDZW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7583Q-33FDZW-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 AP7583Q-33FDZW-7?
For technical support, including AP7583Q-33FDZW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7583Q-33FDZW-7 requirements.
6.How does Aetrix verify that AP7583Q-33FDZW-7 is sourced from the original manufacturer or authorized distributors?
All AP7583Q-33FDZW-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 AP7583Q-33FDZW-7 meets industry standards.
7.What is the process for return or replacement of AP7583Q-33FDZW-7?
All AP7583Q-33FDZW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7583Q-33FDZW-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 AP7583Q-33FDZW-7 part is unused and in its original packaging.
Return procedure for AP7583Q-33FDZW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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