My Inquiry
My Account
Diodes Incorporated AP7583Q-FDZW-7
- Part No.:
- AP7583Q-FDZW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
AP7583Q-FDZW-7.pdf
- Description:
- LDO CMOS LOWCURR W-DFN2020-6 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:2,796
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7583Q-FDZW-7 from Diodes Incorporated is an AEC-Q100 qualified 300mA ultra-low-dropout (ULDO) linear regulator for automotive battery-powered systems, featuring 2.5µA quiescent current, 3V–42V input range, and fixed 3.3V output in W-DFN2020-6 (SWP) package. It powers always-on subsystems including CAN transceivers and microcontrollers in body control modules and EV battery management systems.
For engineers reviewing the AP7583Q-FDZW-7 datasheet, AP7583Q-FDZW-7 pinout, AP7583Q-FDZW-7 application, or AP7583Q-FDZW-7 equivalent, this part delivers verified automotive-grade stability, thermal shutdown, current limiting, and compatibility with low-ESR ceramic capacitors - critical for low-power, high-reliability vehicle electronics design.
Technical Context
The AP7583Q integrates a precision 1.207V reference, error amplifier, and PMOS pass transistor to achieve ±1.5% output voltage accuracy and 320mV dropout at 300mA (5V output). Its internal current-limit circuit triggers at 310–690mA and thermal shutdown activates at +175°C with +20°C hysteresis.
Designed for automotive environments, it supports VIN ramp-up slew rates slower than 200µs/V, operates across –40°C to +125°C junction temperature, and features undervoltage lockout (UVLO) with 2.4V turn-on threshold and 0.2V hysteresis. The EN pin enables active-high control with logic thresholds of 0.3V (low) and 1.7V (high).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 42V - supports direct connection to automotive battery rails including cold-crank (≥4.5V) and load-dump (≤42V) conditions. |
| Output Voltage | Fixed 3.3V ±1.5% - stable supply for 3.3V MCUs, CAN transceivers, and LIN interfaces without external feedback resistors. |
| Max Output Current | 300mA - sufficient for powering multiple low-power automotive peripherals simultaneously. |
| Dropout Voltage | 320mV typ @ 300mA (5V version); 450mV typ @ 300mA (3.3V version) - enables regulation even during deep battery discharge (e.g., 6.5V input → 3.3V output). |
| Quiescent Current | 2.5µA typ @ no load - minimizes standby power loss in always-on domains such as alarm controllers and gateway ECUs. |
| Thermal Shutdown | +175°C activation with +20°C hysteresis - protects against sustained overload or poor PCB thermal layout without latch-up. |
| PSRR | 70dB @ 100Hz - suppresses low-frequency ripple from alternator or DC-DC converter inputs. |
Pinout & Package
AP7583Q-FDZW-7 is housed in a thermally enhanced W-DFN2020-6 (SWP) Type A1 package (2.0mm × 2.0mm × 0.65mm) with exposed thermal pad. Recommended PCB layout uses ≥20mm² copper area connected to GND under the EP for optimal θJA = 80.4°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Input voltage supply | Accepts 3V–42V unregulated automotive rail; requires local 10µF ceramic decoupling capacitor placed adjacent to pin. |
| 2 EN | Enable control input | Active-high logic interface; must exceed 1.7V to enable regulation; tied to VIN if always-on operation is required. |
| 3 GND | Ground reference | Primary signal and power return path; must be low-impedance and routed directly to thermal pad or main ground plane. |
| 4 VOUT | Regulated output | Delivers stable 3.3V ±1.5%; supports 4.7µF–100µF ceramic output capacitance for transient stability. |
| 5 NC(Q) | No-connect (AP7583Q) | Internally unconnected; recommended to tie to GND for improved thermal conduction and EMI shielding. |
| 6 FB/NC | Feedback / no-connect | Not used in fixed-output variants; left open or grounded per layout best practice; unused in AP7583Q-FDZW-7 configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 2.5µA typical quiescent current enables >10-year battery life in always-on automotive modules powered by 12V lead-acid cells. |
| Wide VIN range | 3V–42V operation accommodates full automotive battery profile: start-stop (6.5V), cold-crank (4.5V), and load-dump (42V) without external protection. |
| Low dropout | 320mV dropout at 300mA allows efficient 3.3V regulation from 3.6V input - critical for post-DCDC LDO stages in multi-rail systems. |
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C), PPAP-capable, manufactured in IATF 16949-certified facilities - meets OEM Tier-1 sourcing requirements. |
| Robust protection | Integrated current limit (310–690mA), thermal shutdown (+175°C), and UVLO (2.4V turn-on) prevent fault propagation in harsh vehicle environments. |
Applications
| Body Control Module (BCM) | EV Battery Management System (BMS) |
|---|---|
|
Use Scenario: Powering CAN FD transceivers, door-lock MCUs, and sensor interface ICs in centralized vehicle body domain controllers. IC Role / Device Role / Timing Role: Primary 3.3V ULDO supplying always-on logic domains with <2.5µA standby draw and fast wake-up response (<0.8ms turn-on delay). Use Value: Enables BCM sleep-mode current below 100µA while maintaining CAN bus readiness - directly supporting ISO 11898-2 compliance and OEM low-power certification. |
Use Scenario: Regulating auxiliary power for cell monitoring ICs, isolation gate drivers, and communication interfaces in high-voltage battery packs. IC Role / Device Role / Timing Role: Secondary LDO stage after primary 12V DC-DC, delivering clean 3.3V to analog front-ends and isolated UART/SPI links. Use Value: 70dB PSRR at 100Hz rejects switching noise from upstream converters, ensuring accurate voltage/current measurement integrity per ISO 6469-3. |
| Automotive Head Unit (HU) | Transmission Control Unit (TCU) |
|
Use Scenario: Supplying audio DSPs, touch controller SoCs, and display timing controllers requiring low-noise, stable 3.3V bias. IC Role / Device Role / Timing Role: Low-ripple post-regulator for noise-sensitive mixed-signal circuits; complements switching supplies with <50mV load-transient deviation. Use Value: Load-transient response (80µs recovery time, ±50mV deviation) prevents audio artifacts or display flicker during sudden processor load changes. |
Use Scenario: Powering solenoid driver logic, CAN transceivers, and real-time safety monitors in automatic transmission control modules. IC Role / Device Role / Timing Role: Fault-tolerant 3.3V source with thermal shutdown and current limit - ensures safe shutdown during overtemperature or short-circuit events. Use Value: Thermal cycling behavior (+175°C trip, +155°C recovery) provides graceful degradation instead of catastrophic failure during prolonged high-load operation. |
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-FDZW-7 | Includes open-drain PG output (90–94% VOUT threshold); 3µA IQ vs. 2.5µA; identical pinout and specs otherwise. | Required where power sequencing or supply monitoring is needed (e.g., MCU reset coordination, multi-rail startup validation). | Select AP7583AQ-FDZW-7 only if PG functionality is mandatory; otherwise AP7583Q-FDZW-7 reduces BOM cost and simplifies layout. |
| TLE42754G | 5V fixed output only; 150mA max; 40µA IQ; TO-252 package; higher dropout (500mV @ 150mA). | Suitable for lower-current, non-always-on applications where 5V is required and thermal constraints allow larger package. | Use TLE42754G only when 5V output and legacy footprint compatibility outweigh efficiency and quiescent current penalties. |
Compared with AP7583AQ-FDZW-7, the AP7583Q-FDZW-7 trades PG monitoring for 0.5µA lower IQ and simplified enable-only control - ideal for cost-sensitive, ultra-low-power domains. Versus TLE42754G, it delivers 2× current, 16× lower IQ, and smaller W-DFN2020-6 packaging at comparable AEC-Q100 qualification level.
Availability
AP7583Q-FDZW-7 is available at Aetrix Electronics and suitable for automotive head units, body control modules, and EV battery management systems requiring stable component supply, long-lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for AP7583Q-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 consumer markets, with IATF 16949-certified manufacturing and AEC-Q100 product validation.
The AP7583Q/AQ series belongs to Diodes' automotive-grade power management portfolio, engineered specifically for battery-powered vehicle subsystems demanding ultra-low IQ, wide-input operation, and robust fault protection.
FAQ
What is the minimum input voltage required for AP7583Q-FDZW-7 to regulate 3.3V output?
The AP7583Q-FDZW-7 requires VIN ≥ VOUT + VDROP to maintain regulation. With a typical dropout of 450mV at 300mA, the minimum functional input is 3.75V. However, its UVLO turns on at 2.4V, so regulation begins once VIN exceeds ~3.75V under full load - confirmed by electrical characteristics tables in DS43764 Rev. 3-2.
Can AP7583Q-FDZW-7 be used with ceramic output capacitors less than 4.7µF?
No - the datasheet specifies a stable output capacitance range of 4.7µF to 100µF. Using <4.7µF risks instability, evidenced by oscillation in load-transient response plots (DS43764 p.11). Minimum 4.7µF/6.3V X5R/X7R ceramic is required for guaranteed phase margin across –40°C to +125°C.
Is the exposed pad (EP) on the W-DFN2020-6 package required to be connected to GND?
The exposed pad is not electrically connected to GND internally but must be soldered to a PCB thermal pad tied to GND for optimal thermal performance (θJA = 80.4°C/W). Leaving it floating degrades thermal resistance by >30%, increasing risk of thermal shutdown under 300mA load - per package outline notes and thermal characterization data in DS43764 p.4.
Does AP7583Q-FDZW-7 support adjustable output voltage configurations?
No - AP7583Q-FDZW-7 is a fixed 3.3V output variant. Adjustable versions use the FB pin and require external resistor dividers (R1/R2), but the FDZW marking and ordering code confirm this device is factory-trimmed to 3.3V. Pin 6 (FB/NC) is internally disconnected and must not be used for feedback.
AP7583Q-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):
- 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-FDZW-7 FAQ
1.How can I place an order for AP7583Q-FDZW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7583Q-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 AP7583Q-FDZW-7 reliable?
The price and inventory of AP7583Q-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 AP7583Q-FDZW-7 is usually 5 days.
3.What payment methods are accepted for AP7583Q-FDZW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7583Q-FDZW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7583Q-FDZW-7?
AP7583Q-FDZW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7583Q-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 AP7583Q-FDZW-7?
For technical support, including AP7583Q-FDZW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7583Q-FDZW-7 requirements.
6.How does Aetrix verify that AP7583Q-FDZW-7 is sourced from the original manufacturer or authorized distributors?
All AP7583Q-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 AP7583Q-FDZW-7 meets industry standards.
7.What is the process for return or replacement of AP7583Q-FDZW-7?
All AP7583Q-FDZW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7583Q-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 AP7583Q-FDZW-7 part is unused and in its original packaging.
Return procedure for AP7583Q-FDZW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7583Q-FDZW-7 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
