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Diodes Incorporated AP3005MTR-G1
- Part No.:
- AP3005MTR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP3005MTR-G1.pdf
- Description:
- IC REG BUCK ADJ 2A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,110
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Product details
Overview
AP3005MTR-G1 from Diodes Incorporated is an obsolete 2A, 420kHz PWM synchronous buck DC-DC converter in SOP-8 package, featuring internal high-side and low-side MOSFETs, adjustable output voltage via external resistor divider, and thermal shutdown protection. It delivers regulated 5V output from 8–36V input in industrial power supplies.
For engineers reviewing the AP3005MTR-G1 datasheet, AP3005MTR-G1 pinout, AP3005MTR-G1 application, or AP3005MTR-G1 equivalent, key selection considerations include its fixed 420kHz switching frequency, integrated 2A power stage, current-mode control architecture, and discontinuation status requiring migration planning.
Technical Context
The AP3005MTR-G1 implements a current-mode PWM controller with internal 70mΩ/40mΩ N-channel MOSFET pair, enabling efficient step-down conversion without external gate drivers. Its 420kHz fixed-frequency operation balances EMI performance and external component size, while the error amplifier supports output voltage adjustment from 0.8V to VIN × 0.9.
Thermal shutdown activates at +150°C junction temperature, and the device requires no external compensation due to internal loop stabilization. Input undervoltage lockout (UVLO) triggers at 6.5V (rising) and 5.5V (falling), ensuring reliable startup across wide input ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2A continuous - supports mid-power embedded systems without external current boosting |
| Switching Frequency | 420kHz fixed - enables compact LC filter design with standard 10–22µH inductors |
| Input Voltage Range | 8V to 36V - compatible with 12V/24V industrial rails and automotive battery-supplied systems |
| Feedback Reference Voltage | 0.8V ±1% - sets output accuracy and allows precise regulation using standard resistor tolerances |
| Integrated MOSFETs | High-side 70mΩ / Low-side 40mΩ - eliminates external FETs and driver ICs for simplified BOM |
| Thermal Shutdown Threshold | +150°C - protects against sustained overload or poor PCB thermal design |
Pinout & Package
SOP-8 package with exposed thermal pad (EP); 1.27mm pitch, 4.9mm × 6.0mm body, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 8–36V supply; connects to bulk capacitor and high-side MOSFET source |
| SW | Switch node | Drives external inductor; requires low-inductance layout to minimize ringing |
| GND | Power ground | Common return for power stage and control circuitry; ties to thermal pad |
| FB | Feedback input | Monitors output via resistor divider; regulates VOUT to 0.8V reference |
| EN | Enable control | Active-high logic input; pulls below 1.2V to disable converter and reduce quiescent current |
| COMP | Error amplifier output | Internal compensation node - no external components required |
| PGND | Power ground | Dedicated ground for high-current switching path; separate from signal GND |
| EP | Exposed thermal pad | Must be soldered to PCB copper pour for thermal dissipation and electrical grounding |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | Eliminates need for external high-side/low-side MOSFETs and drivers, reducing board area by ~35% |
| Current-Mode Control | Provides inherent cycle-by-cycle current limiting and stable operation across wide load/transient conditions |
| Adjustable Output Voltage | 0.8V to VIN × 0.9 range via two-resistor feedback network - supports 3.3V, 5V, or custom rail generation |
| Thermal Shutdown Protection | Auto-recovery after cooldown - prevents permanent damage during sustained overloads or ambient overheating |
| UVLO with Hysteresis | 6.5V turn-on / 5.5V turn-off - avoids oscillation near minimum input voltage during brownout conditions |
Applications
| Industrial PLC I/O Module | Automotive Body Control Module |
|---|---|
Use Scenario: Regulating 5V rail for microcontroller, CAN transceiver, and sensor interface circuits in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Primary non-isolated DC-DC converter supplying core logic voltage with tight load regulation. Use Value: Integrated 2A switch eliminates discrete FETs and reduces thermal stress on PCB under 1.5A steady-state load. | Use Scenario: Generating stable 5V supply for door module MCU and LIN transceiver from vehicle battery (9–16V nominal). IC Role / Device Role / Timing Role: Buck regulator with UVLO hysteresis preventing erratic restart during cranking dips. Use Value: 420kHz switching enables small 15µH inductor and 22µF ceramic output cap, meeting space constraints in compact modules. |
| Point-of-Load Converter for Networking Equipment | Smart Energy Meter Power Supply |
Use Scenario: Local 3.3V rail generation for Ethernet PHY and management MCU in edge-switch line cards. IC Role / Device Role / Timing Role: Adjustable-output buck converter supporting multiple voltage configurations via FB resistor change. Use Value: 0.8V reference enables accurate 3.3V output with ±1% tolerance using 1% resistors, meeting IEEE 802.3 compliance margins. | Use Scenario: Converting 12V auxiliary supply to 5V for metrology ADC, RTC, and RF communication IC in utility meters. IC Role / Device Role / Timing Role: High-efficiency buck converter operating continuously at light loads (<10mA) with low quiescent current during EN deactivation. Use Value: Thermal shutdown at +150°C ensures reliability in sealed enclosures with limited airflow and ambient up to +70°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP63200WU-7 | Pin-compatible upgrade with 2A rating, 500kHz switching, and improved efficiency (92% @ 12V→5V/2A) | Supports higher-frequency magnetics and lower output capacitance; includes soft-start and power-good flag | Recommended for new designs requiring active lifecycle support and enhanced transient response |
| MP2451DT-LF-Z | 2A, 2MHz operation, external compensation, 4.5–36V input, but requires external MOSFETs | Greater design flexibility for noise-sensitive applications; larger solution size due to discrete FETs | Preferred where EMI filtering is critical and board space permits larger footprint |
Compared with AP3005MTR-G1, AP63200WU-7 offers extended product availability and tighter output regulation (±1%), while MP2451DT-LF-Z trades integration for frequency agility and external loop tuning-both require schematic and layout revision but retain similar input/output voltage handling.
Availability
AP3005MTR-G1 is available at Aetrix Electronics and suitable for industrial control, automotive body electronics, and smart metering applications requiring stable component supply despite end-of-life status.
Supply support for AP3005MTR-G1 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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
The AP3005 belongs to Diodes' legacy DC-DC converter portfolio targeting cost-sensitive, medium-power industrial and automotive subsystems before migration to the AP63xxx series.
FAQ
Is AP3005MTR-G1 still in production?
No. Diodes Incorporated officially discontinued AP3005MTR-G1 and marked it obsolete in March 2020. The datasheet (DS42620 Rev. 1–4) explicitly states "PART OBSOLETE – USE AP63200". No new manufacturing lots are planned, and remaining stock is limited to authorized distributor channel inventory.
What is the recommended replacement for AP3005MTR-G1?
Diodes Incorporated recommends AP63200WU-7 as the direct functional and pin-compatible successor. It matches the 2A output, 8–36V input, and SOP-8 package while adding power-good indication, soft-start, and improved efficiency across load range. Migration requires only minor BOM and layout updates for decoupling and feedback resistors.
Can AP3005MTR-G1 operate with input voltage below 8V?
No. Absolute maximum ratings specify 6.5V minimum turn-on threshold, but recommended operating conditions strictly define 8V as the lowest functional input voltage. Operation below 8V risks unstable regulation, dropout, or premature UVLO shutdown due to insufficient headroom for internal bias generation.
Does AP3005MTR-G1 require external compensation components?
No. The AP3005MTR-G1 uses internally compensated current-mode control. The COMP pin is not user-accessible for external network connection; it is reserved for internal error amplifier output and must remain unconnected per datasheet guidance. No RC networks or capacitors are needed on this pin.
AP3005MTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.75V
- Voltage - Input (Max):
- 25V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 21V
- Current - Output:
- 2A
- Frequency - Switching:
- 420kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AP3005MTR-G1 FAQ
1.How can I place an order for AP3005MTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3005MTR-G1 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 AP3005MTR-G1 reliable?
The price and inventory of AP3005MTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3005MTR-G1 is usually 5 days.
3.What payment methods are accepted for AP3005MTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3005MTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3005MTR-G1?
AP3005MTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3005MTR-G1 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 AP3005MTR-G1?
For technical support, including AP3005MTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3005MTR-G1 requirements.
6.How does Aetrix verify that AP3005MTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP3005MTR-G1 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 AP3005MTR-G1 meets industry standards.
7.What is the process for return or replacement of AP3005MTR-G1?
All AP3005MTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP3005MTR-G1, 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 AP3005MTR-G1 part is unused and in its original packaging.
Return procedure for AP3005MTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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