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Diodes Incorporated AP7583Q-33D4-13
- Part No.:
- AP7583Q-33D4-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
AP7583Q-33D4-13.pdf
- Description:
- LDO CMOS LOWCURR TO252-4 T&R 2.5
- Quantity:
- Payment:
- Shipping:
Inventory:2,945
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Product details
Overview
AP7583Q-33D4-13 from Diodes Incorporated is a 3.3V fixed-output, 300mA ultra-low-dropout (ULDO) regulator for automotive battery-powered systems. It delivers ±1.5% output voltage accuracy, 320mV dropout at 300mA, and 2.5µA quiescent current - enabling always-on operation in microcontroller and CAN transceiver power rails. Packaged in TO252-4 (Type C), it supports 3V–42V input and integrates thermal shutdown, current limiting, and AEC-Q100 qualification.
For engineers reviewing the AP7583Q-33D4-13 datasheet, AP7583Q-33D4-13 pinout, AP7583Q-33D4-13 application, or AP7583Q-33D4-13 equivalent, key selection criteria include wide-input automotive LDO requirements, PG-free low-quiescent design, TO252-4 thermal performance, and compatibility with ceramic output capacitors down to 4.7µF.
Technical Context
The AP7583Q-33D4-13 implements a PMOS pass transistor architecture with internal 1.2V reference and error amplifier, enabling stable regulation across -40°C to +125°C junction temperature. Its UVLO threshold of 2.4V (typ) and hysteresis of 0.2V ensure reliable startup under cold-crank conditions.
It features active current-limit protection (310–690mA), thermal shutdown at +175°C with +20°C hysteresis, and line/load regulation of ±10mV and ±20mV respectively. The device requires no minimum load and remains stable with 4.7µF–100µF ceramic output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1.5% - ensures MCU/CAN interface compliance without external feedback resistors. |
| Max Output Current | 300mA - sufficient for dual-core automotive MCUs and integrated CAN/LIN transceivers. |
| Dropout Voltage | 320mV @ 300mA - enables regulation down to VIN = 3.62V, critical for automotive cold-crank (6V) operation. |
| Quiescent Current | 2.5µA (typ) - minimizes standby power loss in always-on domains like body control modules. |
| Input Voltage Range | 3V to 42V - covers full automotive battery range including load dump (40V transient). |
| Thermal Resistance | θJA = 27.2°C/W (TO252-4) - enables 1.2W continuous dissipation at 25°C ambient with standard PCB copper. |
| ESD Rating | HBM ±2000V, CDM ±1500V - meets automotive board-level ESD robustness requirements. |
Pinout & Package
AP7583Q-33D4-13 uses the TO252-4 (Type C) thermally enhanced surface-mount package with exposed pad. PCB layout requires direct connection of the exposed pad to a large GND copper pour for optimal thermal dissipation (θJC = 7.5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VIN | Input supply connection | Accepts 3V–42V unregulated battery input; requires local 10µF ceramic decoupling. |
| 2: EN | Enable control input | Active-high logic input (VIH ≥ 1.7V); tie to VIN for always-on operation. |
| 4: Q / NC | No-connect terminal | Internally unconnected; recommended to connect to GND for thermal enhancement and noise immunity. |
| 3: GND | Power ground reference | Primary return path for load current and internal bias; must be low-impedance connection to PCB GND plane. |
| 5: VOUT | Regulated output | Delivers stable 3.3V ±1.5%; supports 4.7µF–100µF ceramic output capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 2.5µA typical - extends battery life in always-on vehicle subsystems such as alarm controllers and telematics. |
| Wide input voltage range | 3V to 42V - accommodates start-stop, cold-crank, and load-dump transients without external protection. |
| Low dropout voltage | 320mV @ 300mA - maintains regulation during low-battery events where VIN drops to 3.62V. |
| Integrated protection | Current limit, thermal shutdown (+175°C), and UVLO (2.4V) - eliminates need for discrete protection circuitry. |
| AEC-Q100 qualified | Grade 1 (-40°C to +125°C) - certified for under-hood and body electronics applications per automotive reliability standards. |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Subsystem |
|---|---|
|
Use Scenario: Powering low-power microcontrollers and LIN transceivers in door modules and lighting controllers. IC Role / Device Role / Timing Role: Primary 3.3V LDO supplying always-on logic and communication interfaces. Use Value: 2.5µA IQ enables >10-year battery backup in sleep mode while maintaining fast wake-up response. |
Use Scenario: Regulating auxiliary 3.3V rail for sensor signal conditioning and CAN interface ICs. IC Role / Device Role / Timing Role: Secondary LDO downstream of main 5V domain, providing isolated low-noise supply. Use Value: ±1.5% accuracy and 70dB PSRR at 100Hz ensure stable ADC reference and clean CAN bus signaling. |
| Electric Vehicle Battery Management System (BMS) | Automotive Head Unit (HU) Standby Domain |
|
Use Scenario: Supplying real-time clock (RTC), non-volatile memory, and wake-up interrupt controllers in high-voltage BMS slave boards. IC Role / Device Role / Timing Role: Always-on LDO powering timekeeping and fault-monitoring circuits independent of main system power. Use Value: 3V–42V input range tolerates wide pack voltage swings (e.g., 12S Li-ion: 36V–50V nominal), with UVLO preventing brownout resets. |
Use Scenario: Providing standby 3.3V to audio DSP, touch controller, and Bluetooth SoC during ignition-off state. IC Role / Device Role / Timing Role: Low-IQ LDO maintaining system responsiveness and remote wake capability. Use Value: TO252-4 package enables 1.2W continuous dissipation on standard 2oz copper, eliminating need for heatsinks in compact HU designs. |
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-33D4-13 | Includes open-drain PG output (VPGR = 90% VOUT); 3µA IQ vs. 2.5µA | Required where supply sequencing or fault reporting to host MCU is needed | Select when power-good monitoring is mandatory; otherwise AP7583Q offers lower IQ and simpler BOM. |
| TLD1114-33V | 40V max VIN, 250mA IOUT, 5µA IQ, no PG, same TO252-4 footprint | Limited to lower-current loads; lacks AEC-Q100 Grade 1 certification | Use only in non-safety-critical interior modules where 300mA headroom and full AEC-Q100 are not required. |
Compared with AP7583AQ-33D4-13, the AP7583Q-33D4-13 reduces standby power by 17% but omits supply monitoring; versus TLD1114-33V, it adds 100mA current headroom, tighter voltage accuracy, and full automotive qualification - making it suitable for safety-relevant domains like BCM and BMS.
Availability
AP7583Q-33D4-13 is available at Aetrix Electronics and suitable for automotive body control modules, battery management systems, engine control units, and head unit standby domains requiring stable component supply across extended temperature and lifecycle demands.
Supply support for AP7583Q-33D4-13 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.
The AP7583Q series belongs to Diodes' automotive-grade ULDO regulator product line, designed specifically for always-on power domains in AEC-Q100-compliant vehicle electronics requiring ultra-low IQ and wide-input resilience.
FAQ
What is the minimum input voltage required for regulation at 300mA output?
The AP7583Q-33D4-13 requires VIN ≥ VOUT + VDROP = 3.3V + 0.32V = 3.62V to maintain regulation at full 300mA load. At light loads, regulation is sustained down to VIN = 3.0V due to lower dropout. This ensures functionality during automotive cold-crank events where battery voltage dips to ~6V across the full system.
Can this LDO operate without an output capacitor?
No - the AP7583Q-33D4-13 requires a minimum 4.7µF ceramic output capacitor for stability, as confirmed in the datasheet's stable capacitance range (4.7µF–100µF). Omitting the capacitor causes oscillation and output voltage collapse; 10µF is recommended for optimal transient response and PSRR.
Is the exposed pad electrically connected internally?
No - the exposed pad in the TO252-4 (Type C) package is thermally conductive only and not electrically tied to any internal node. It must be connected to PCB GND for thermal performance, but must not serve as the sole GND return path; dedicated GND pins (Pin 3) remain the primary current return.
Does this part support adjustable output voltage configurations?
No - AP7583Q-33D4-13 is a fixed 3.3V output variant. Adjustable versions (e.g., AP7583Q-D4-13) use FB/NC pin with external resistor divider and require different marking and ordering codes. This part has internal feedback network and no FB pin function.
AP7583Q-33D4-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- 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
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-4L
AP7583Q-33D4-13 FAQ
1.How can I place an order for AP7583Q-33D4-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7583Q-33D4-13 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-33D4-13 reliable?
The price and inventory of AP7583Q-33D4-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7583Q-33D4-13 is usually 5 days.
3.What payment methods are accepted for AP7583Q-33D4-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7583Q-33D4-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7583Q-33D4-13?
AP7583Q-33D4-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7583Q-33D4-13 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-33D4-13?
For technical support, including AP7583Q-33D4-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7583Q-33D4-13 requirements.
6.How does Aetrix verify that AP7583Q-33D4-13 is sourced from the original manufacturer or authorized distributors?
All AP7583Q-33D4-13 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-33D4-13 meets industry standards.
7.What is the process for return or replacement of AP7583Q-33D4-13?
All AP7583Q-33D4-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7583Q-33D4-13, 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-33D4-13 part is unused and in its original packaging.
Return procedure for AP7583Q-33D4-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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