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Diodes Incorporated AP2014SL-13
- Part No.:
- AP2014SL-13
- Manufacturer:
- Diodes Incorporated
- Category:
- DC DC Switching Controllers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP2014SL-13.pdf
- Description:
- IC REG CTRLR BUCK 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:319
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Product details
Overview
AP2014SL-13 from Diodes Incorporated is a synchronous PWM buck controller IC designed for low-cost, on-board DC-DC conversion in 5V/12V-input systems delivering 1.26–5V outputs up to 7A. It integrates a fixed-frequency voltage-mode control architecture, internal 200kHz oscillator (non-A version), 500mA peak gate drive capability, under-voltage lockout on VCC (4.2V threshold) and VC (3.3V threshold), and programmable soft-start via external capacitor. Used with dual N-channel MOSFETs, it enables efficient 5V-to-1.8V or 12V-to-2.5V regulation in graphics cards and DDR memory power rails.
For engineers reviewing the AP2014SL-13 datasheet, AP2014SL-13 pinout, AP2014SL-13 application, or AP2014SL-13 equivalent, key selection considerations include its SO-8 package, 200kHz switching frequency, FB reference voltage of 1.25V ±2.5%, 0.5A peak gate drive strength, and dedicated high-side/low-side driver outputs for discrete external FET control.
Technical Context
The AP2014SL-13 implements a fixed-frequency voltage-mode PWM control loop with an internal 200kHz oscillator and 1.25V precision feedback reference. Its error amplifier features transconductance of 450–750 μmho and compensation via external RC network on the Comp pin.
It provides independent high-side (HDrv) and low-side (LDrv) gate drivers with 50–100ns rise/fall times and 50–250ns programmable dead time. Under-voltage lockout ensures both VCC ≥4.2V and VC ≥3.3V before enabling operation, and output short-circuit protection latches off the controller when FB drops below 0.6V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Oscillator Frequency | 200 kHz - Sets fixed switching period for stable loop design and EMI control in 5V/12V input buck converters. |
| Feedback Reference Voltage | 1.25 V ±2.5% - Defines regulated output voltage via external resistor divider; enables 1.26V–5V output range. |
| Peak Gate Drive Current | 500 mA - Sufficient to drive standard N-channel MOSFET gates (e.g., 70T03H) at 200kHz with minimal delay. |
| VCC UVLO Threshold | 4.2 V - Prevents erratic startup until bias supply stabilizes; hysteresis of 0.25V avoids chatter near threshold. |
| VC UVLO Threshold | 3.3 V - Ensures high-side driver supply meets minimum headroom requirement before enabling HDrv output. |
| Soft-Start Charge Current | 20 μA typical - Controls ramp rate of output voltage by charging external SS capacitor; limits inrush current. |
| Operating Junction Temp | 0°C to +125°C - Specifies thermal envelope for continuous operation in industrial-grade embedded power stages. |
Pinout & Package
AP2014SL-13 is housed in a standard SO-8 surface-mount package (4.9mm × 6.0mm, 1.27mm pitch) with exposed pad not electrically connected. Thermal resistance is θJA = 160°C/W on 2oz copper FR-4 PCB per manufacturer test conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (Pin 1) | Feedback Input | Connects to resistor divider output; senses regulated voltage and compares to 1.25V internal reference. |
| VCC (Pin 2) | Bias Supply Input | Powers internal logic and low-side driver; requires ≥1μF high-frequency bypass to GND. |
| LDrv (Pin 3) | Low-Side Gate Driver Output | Drives source-connected N-MOSFET; 500mA peak sink/source supports fast turn-on/turn-off. |
| GND (Pin 4) | Power Ground Reference | Common return path for VCC, VC, and driver currents; must connect directly to ground plane. |
| HDrv (Pin 5) | High-Side Gate Driver Output | Drives gate of high-side N-MOSFET; requires bootstrap or floating supply (VC) ≥4V above switch node. |
| VC (Pin 6) | High-Side Driver Supply | Provides floating bias for HDrv; must be ≥4V above bus voltage and bypassed with ≥1μF capacitor. |
| Comp (Pin 7) | Error Amplifier Compensation | External RC network sets loop stability; connects between Comp and GND per design-specific compensation. |
| SS (Pin 8) | Soft-Start Control | Internal 20μA current charges external capacitor; pulling below 0.5V disables PWM output. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous Buck Controller Architecture | Enables >90% efficiency in 5V-to-1.8V/2.5V conversion using discrete N-MOSFETs instead of lossy linear regulators. |
| Dual Independent Gate Drivers | HDrv and LDrv outputs support optimized timing control and 50–250ns dead-time adjustment to prevent shoot-through. |
| Programmable Soft-Start | External capacitor on SS pin controls output voltage ramp rate, limiting input surge current during power-up. |
| Output Short-Circuit Protection | Latches off PWM when FB falls below 0.6V, preventing damage during sustained output shorts or overload. |
| Under-Voltage Lockout on Dual Supplies | Independent VCC and VC UVLO thresholds ensure both bias domains are valid before enabling gate drivers. |
Applications
| Graphic Card Core Power | Hard Disk Drive +12V-to-+5V Conversion |
|---|---|
|
Use Scenario: Regulating GPU core voltage from 12V rail to 1.26V at up to 7A with tight transient response. IC Role / Device Role / Timing Role: Synchronous buck controller providing fixed 200kHz PWM signals to external high/low-side N-MOSFETs. Use Value: Enables compact, high-efficiency point-of-load regulation without requiring integrated power stages. |
Use Scenario: Converting 12V system bus to stable 5V for HDD motor and logic circuits in consumer storage devices. IC Role / Device Role / Timing Role: Voltage-mode controller managing duty cycle via FB feedback to maintain ±1% output accuracy under load steps. Use Value: Delivers 5V/5A output with <35mV ripple at full load while supporting cost-sensitive BOMs with discrete FETs. |
| DDR Memory VTT Termination | Industrial On-Board 5V-to-3.3V Converter |
|
Use Scenario: Generating matched, low-noise VTT termination voltage (½ VDDQ) for DDR2/DDR3 memory interfaces. IC Role / Device Role / Timing Role: Precision reference-based controller maintaining 1.25V FB threshold to track VDDQ/2 with <±2.5% tolerance. Use Value: Provides accurate, stable termination voltage with fast transient recovery essential for signal integrity in high-speed memory buses. |
Use Scenario: Stepping down 5V main rail to 3.3V for microcontroller, FPGA I/O, and peripheral logic in industrial control modules. IC Role / Device Role / Timing Role: Fixed-frequency synchronous controller driving discrete MOSFETs to achieve >88% efficiency at 3A load. Use Value: Offers robust, RoHS-compliant DC-DC solution with SO-8 footprint and proven thermal performance up to +125°C junction. |
Availability
AP2014SL-13 is available at Aetrix Electronics and suitable for graphic card power delivery, hard disk drive voltage regulation, and DDR memory termination applications requiring stable component supply and legacy design continuity.
Supply support for AP2014SL-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 manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP2014 series belongs to Diodes' synchronous buck controller product line, engineered specifically for cost-sensitive, high-efficiency on-board DC-DC conversion in graphics, storage, and memory subsystems.
FAQ
Is AP2014SL-13 still in production?
No - AP2014SL-13 is obsolete and discontinued per Diodes Incorporated's official documentation (DS31087 Rev. 6-4, August 2020). The part has no designated replacement, and all Lead-Free variants including AP2014SG-13 are End of Life without replacement.
What is the difference between AP2014 and AP2014A?
The AP2014 uses a 200kHz internal oscillator and 1.25V FB reference, while the AP2014A operates at 400kHz and features a 0.8V FB reference. Both share identical pinout, SO-8 packaging, gate drive capability, and protection features, but require different compensation and feedback networks.
Can AP2014SL-13 drive high-side P-channel MOSFETs?
No - AP2014SL-13 is designed exclusively for dual N-channel MOSFET configurations. Its HDrv output requires a floating supply (VC) and cannot directly drive P-channel devices; it relies on bootstrap or charge-pump circuitry for high-side N-MOSFET gate biasing.
Does AP2014SL-13 include overtemperature protection?
No - AP2014SL-13 does not integrate thermal shutdown. Protection relies on external design: proper PCB layout (2oz copper, recommended pad size), thermal derating per θJA = 160°C/W, and system-level monitoring of MOSFET and inductor temperatures.
AP2014SL-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Output Type:
- Transistor Driver
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 1
- Output Phases:
- 1
- Voltage - Supply (Vcc/Vdd):
- 5V, 12V
- Frequency - Switching:
- 200kHz
- Duty Cycle (Max):
- 90%
- Synchronous Rectifier:
- Yes
- Clock Sync:
- No
- Serial Interfaces:
- -
- Control Features:
- Soft Start
- Operating Temperature:
- 0°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
AP2014SL-13 FAQ
1.How can I place an order for AP2014SL-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2014SL-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 AP2014SL-13 reliable?
The price and inventory of AP2014SL-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2014SL-13 is usually 5 days.
3.What payment methods are accepted for AP2014SL-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2014SL-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2014SL-13?
AP2014SL-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2014SL-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 AP2014SL-13?
For technical support, including AP2014SL-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2014SL-13 requirements.
6.How does Aetrix verify that AP2014SL-13 is sourced from the original manufacturer or authorized distributors?
All AP2014SL-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 AP2014SL-13 meets industry standards.
7.What is the process for return or replacement of AP2014SL-13?
All AP2014SL-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2014SL-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 AP2014SL-13 part is unused and in its original packaging.
Return procedure for AP2014SL-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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