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Diodes Incorporated AP6507SP-13
- Part No.:
- AP6507SP-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP6507SP-13.pdf
- Description:
- IC REG BUCK ADJ 3A 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,475
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Product details
Overview
AP6507SP-13 from Diodes Incorporated is a 500 kHz, 4.5–18 V input, 3 A synchronous buck DC/DC converter in SO-8EP package with integrated high-side (120 mΩ) and low-side (20 mΩ) MOSFETs, internal compensation, and 0.808 V feedback reference-designed for compact, high-efficiency point-of-load regulation in consumer power rails.
For engineers reviewing the AP6507SP-13 datasheet, AP6507SP-13 pinout, AP6507SP-13 application, or AP6507SP-13 equivalent, key selection criteria include its current-mode control architecture, thermal shutdown at 140°C, EN pin logic interface, and 93% peak efficiency at 12 VIN/1.2 VOUT/3 A load-critical for gaming console VRMs and distributed audio supply designs.
Technical Context
The AP6507SP-13 implements fixed-frequency (500 kHz ±150 kHz) current-mode control with internal slope compensation to suppress subharmonic oscillation. Its error amplifier features 50 pF/200 kΩ internal compensation and clamped 2.1 V output, enabling stable loop response without external components.
It integrates a 5 V internal bias regulator (±5% line regulation), UVLO with 4.2 V rising threshold and 200 mV hysteresis, and cycle-by-cycle overcurrent protection that triggers frequency foldback to 150 kHz when FB drops below 300 mV-reducing peak current to 4.1 A during fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 18 V - supports 5 V, 12 V, and 15 V intermediate bus architectures without external regulators. |
| Output Voltage Range | Adjustable from 0.808 V to 15 V via resistor divider - enables precise core voltage scaling for SoCs and FPGAs. |
| Switching Frequency | 500 kHz (typ.) - balances EMI performance and inductor size; foldbacks to 150 kHz under short-circuit for safe current limiting. |
| Continuous Output Current | 3 A - sustained delivery with thermal management via exposed pad; peak current limit 5.8 A (typ.) prevents MOSFET saturation. |
| Feedback Reference Voltage | 0.808 V (±20 mV over –40°C to +85°C) - sets output accuracy baseline; low 50 nA bias current minimizes divider error. |
| Enable Threshold | 1.3 V (typ.) rising, 0.9 V falling - provides 400 mV hysteresis for noise-immune start-up sequencing in multi-rail systems. |
| Thermal Shutdown | 140°C junction activation with ~20°C hysteresis - protects against PCB-level thermal runaway while allowing recovery at ~120°C. |
Pinout & Package
AP6507SP-13 uses the SO-8EP (exposed pad) package: 5.0 mm × 6.0 mm body, 1.27 mm pitch, thermally enhanced copper-exposed bottom pad soldered directly to PCB ground plane for θJA = 56°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power Input | 4.5–18 V main rail connection; requires local 22 µF ceramic decoupling and wide trace routing to minimize switching noise injection. |
| 2,3 SW | Switch Node | Drives external inductor; carries high di/dt; must be routed with minimal loop area and adjacent to GND pour to reduce EMI. |
| 4 BST | Bootstrap Supply | Connects to SW via 100 nF capacitor to generate floating gate drive for high-side MOSFET; external Schottky recommended below 5 VIN. |
| 5 EN | Enable Control | Active-high logic input; 2 µA max leakage allows simple resistor-divider startup from VIN; 5 µs minimum low pulse required for shutdown. |
| 6 FB | Voltage Feedback | Senses output via resistor divider; 50 nA bias current enables high-value dividers; <500 mV triggers foldback mode during overload. |
| 7 VCC | Bias Regulator Output | Internal 5 V supply for gate drivers and logic; decoupled with 0.1–0.22 µF ceramic; not intended for external loading. |
| 8 GND | System Ground | Reference for all signals and output regulation; exposed pad must be connected to solid GND plane with ≥4 thermal vias for thermal reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | 120 mΩ high-side + 20 mΩ low-side MOSFETs eliminate external switches and reduce BOM count by 4–6 components. |
| Internal Compensation | 50 pF capacitor + 200 kΩ resistor network eliminates external compensation components and simplifies layout validation. |
| Current-Mode Control | Enables fast transient response (<200 µs recovery from 1.5 A→3 A step) and inherent line/load regulation without external loop tuning. |
| Soft-Start Timing | Fixed 2 ms internal ramp prevents inrush current and output overshoot during power-up, eliminating need for external soft-start circuitry. |
| Thermal Protection | 140°C shutdown with 20°C hysteresis ensures reliable operation in enclosed consumer enclosures without forced airflow. |
Applications
| Gaming Console VRM | Smart TV SoC Core Supply |
|---|---|
|
Use Scenario: Regulating 1.2 V core voltage for ARM-based application processors in compact gaming handhelds with strict thermal envelope. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering up to 3 A continuous current with tight output tolerance (±1.5%) and fast load-step response. Use Value: Internal MOSFETs and compensation reduce solution size by 35% vs discrete controllers; 93% efficiency at full load extends battery runtime. |
Use Scenario: Generating 1.8 V I/O supply for video processing SoCs in 4K smart TVs where EMI compliance and board space are critical. IC Role / Device Role / Timing Role: Fixed-frequency (500 kHz) buck converter with EN-controlled power sequencing aligned to HDMI hot-plug detection logic. Use Value: 4.5–18 V input range accepts legacy 12 V or modern 5 V intermediate bus; SO-8EP thermal pad enables passive cooling on multilayer PCBs. |
| Set-Top Box Memory Rail | Home Audio DSP Power |
|
Use Scenario: Providing clean, low-noise 2.5 V supply to DDR3 memory subsystems in cable/satellite set-top boxes operating at ambient up to 70°C. IC Role / Device Role / Timing Role: Synchronous buck converter with 0.808 V reference and precision FB divider enabling ±1% output accuracy across temperature. Use Value: Cycle-by-cycle OCP and thermal shutdown prevent field failures during firmware update surges; 30% inductor ripple current optimizes efficiency vs cost. |
Use Scenario: Delivering 3.3 V power to digital signal processors in premium soundbars with zero audible switching noise in audio band. IC Role / Device Role / Timing Role: High PSRR buck regulator using ceramic input/output caps and optimized PCB layout to suppress 500 kHz switching artifacts. Use Value: Low 10 nA FB bias current enables high-resistor dividers that reduce quiescent current; 500 kHz frequency avoids AM radio band interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z (Monolithic Power) | 4.5–28 V input, 3 A, 500 kHz, but requires external compensation and has higher RDS(ON) (130/45 mΩ). | Wider VIN range suits industrial 24 V systems; less suitable for space-constrained consumer PCBs due to larger external RC network. | Select MP2315 if input exceeds 18 V or if design requires adjustable frequency; accept added layout complexity for extended voltage coverage. |
| RT7295BGJ8F (Richtek) | 4.5–18 V, 3 A, 600 kHz, integrated compensation, but no BST pin-uses charge pump instead of bootstrap capacitor. | Eliminates external BST cap but increases light-load quiescent current (250 µA vs AP6507's 1.2 mA); less efficient below 0.5 A. | Choose RT7295B for ultra-low EMI designs where bootstrap node routing is problematic; verify light-load efficiency impact in always-on audio modules. |
Compared with MP2315DJ-LF-Z and RT7295BGJ8F, the AP6507SP-13 offers optimal balance of integration (no external compensation), thermal performance (SO-8EP pad), and precision (0.808 V reference with 20 mV tolerance), making it preferred for cost-sensitive, high-volume consumer power stages where layout simplicity and consistent efficiency across load are prioritized.
Availability
AP6507SP-13 is available at Aetrix Electronics and suitable for gaming consoles, smart TVs, and set-top boxes requiring stable component supply, RoHS-compliant packaging, and production-ready thermal performance in SO-8EP format.
Supply support for AP6507SP-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 high-efficiency power management solutions for consumer, computing, and industrial markets.
The AP6507 belongs to Diodes' high-density synchronous buck converter product line, engineered specifically for space-constrained, thermally demanding consumer electronics where integration, reliability, and ease of design-in are primary objectives.
FAQ
What is the minimum input voltage required for stable 3 A operation?
The AP6507SP-13 requires a minimum input voltage of 4.5 V for full 3 A continuous output. Below this, UVLO activates at 4.2 V (typ.), disabling the converter. At 4.5 V input and 1.2 V output, duty cycle reaches ~85%, and efficiency remains >85% with proper thermal management via the exposed pad.
Can the AP6507SP-13 operate without an external bootstrap capacitor?
No-the BST pin requires a 100 nF capacitor connected between BST and SW pins to generate the floating gate drive voltage for the high-side MOSFET. Omitting this capacitor prevents high-side conduction, causing complete failure of regulation and potential damage due to uncontrolled shoot-through.
How does the frequency foldback feature behave during overload?
When FB voltage drops below 300 mV (e.g., during short circuit), the oscillator frequency folds back from 500 kHz to 150 kHz, reducing peak inductor current to ~4.1 A. This lowers average power dissipation and prevents thermal runaway while maintaining regulated shutdown behavior-not latch-off-enabling automatic recovery once fault clears.
Is the SO-8EP package lead-free and RoHS compliant?
Yes-the AP6507SP-13 is manufactured in a Green SO-8EP package with lead-free finish and fully complies with EU Directive 2002/95/EC (RoHS), including all applicable exemptions. The exposed pad is matte tin-plated and compatible with standard Pb-free reflow profiles (peak 260°C).
AP6507SP-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- 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):
- 4.5V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 0.808V
- Voltage - Output (Max):
- 15V
- Current - Output:
- 3A
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO-EP
AP6507SP-13 FAQ
1.How can I place an order for AP6507SP-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP6507SP-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 AP6507SP-13 reliable?
The price and inventory of AP6507SP-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP6507SP-13 is usually 5 days.
3.What payment methods are accepted for AP6507SP-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP6507SP-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP6507SP-13?
AP6507SP-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP6507SP-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 AP6507SP-13?
For technical support, including AP6507SP-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP6507SP-13 requirements.
6.How does Aetrix verify that AP6507SP-13 is sourced from the original manufacturer or authorized distributors?
All AP6507SP-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 AP6507SP-13 meets industry standards.
7.What is the process for return or replacement of AP6507SP-13?
All AP6507SP-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP6507SP-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 AP6507SP-13 part is unused and in its original packaging.
Return procedure for AP6507SP-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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