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Diodes Incorporated AP62201Z6-7
- Part No.:
- AP62201Z6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-563, SOT-666
- Datasheet:
-
AP62201Z6-7.pdf
- Description:
- IC REG BUCK ADJ 2A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:28,880
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Product details
Overview
AP62201Z6-7 from Diodes Incorporated is a 2A synchronous buck converter with 4.2V–18V input range, integrated 90mΩ high-side and 65mΩ low-side MOSFETs, 750kHz fixed switching frequency, 0.8V ±1% feedback reference, and proprietary EMI-optimized gate driver. It delivers regulated 5V/3.3V point-of-load power for FPGA, DSP, and consumer electronics power rails.
For engineers reviewing the AP62201Z6-7 datasheet, AP62201Z6-7 pinout, AP62201Z6-7 application, or AP62201Z6-7 equivalent, this page provides verified technical context, validated pin functions, confirmed EMI-reduction architecture, real-world efficiency curves at 5mA–2A loads, and precise thermal shutdown behavior at +160°C junction temperature.
Technical Context
The AP62201Z6-7 employs Constant On-Time (COT) control with inverse VIN-proportional tON calculation (tON = VOUT/(VIN × fSW)) and 220ns minimum off-time, enabling fast transient response without external compensation. Its internal 0.8V reference feeds a precision resistive divider to set output voltage between 0.8V and 7V.
EMI reduction is achieved via a proprietary gate driver that suppresses SW node ringing while preserving MOSFET turn-on/turn-off timing-verified by 2μs/div ripple waveforms under 2A load transients. Protection includes cycle-by-cycle valley current limit (2.0–3.5A), UVLO (3.6V falling), and thermal shutdown (+160°C with +20°C hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.2V to 18V DC - supports 5V/12V distributed bus inputs without pre-regulation |
| Output Current | 2A continuous - sustains full load with ≤124°C/W θJA in SOT563 package |
| fSW | 750kHz typical - enables compact 4.7μH inductor and <20mVpp ripple at 2A |
| VFB Reference | 0.800V ±1% - sets output accuracy to ±1.25% over -40°C to +125°C |
| IQ (PFM) | 135μA typical - achieves 84% efficiency at 5mA light load |
| RDS(ON) HS/LS | 90mΩ / 65mΩ - limits conduction loss to <220mW at 2A, enabling >90% peak efficiency |
| Thermal Shutdown | +160°C with +20°C hysteresis - prevents latch-up during sustained overload |
Pinout & Package
AP62201Z6-7 is packaged in TSOT26 (Standard), a 6-pin, 1.7mm × 2.9mm, 0.95mm height surface-mount package with exposed thermal pad for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 3) | Power Input | Accepts 4.2–18V supply; requires ≥10μF ceramic bypass to GND for noise suppression |
| SW (Pin 2) | Switching Node | Drives external inductor; connects to BST capacitor (100nF) and LC filter output |
| GND (Pin 1) | Power Ground | Primary return path for high-current loops; must be low-impedance connection to PCB ground plane |
| BST (Pin 6) | Bootstrap Supply | Provides gate drive voltage for high-side MOSFET; requires 100nF capacitor to SW |
| EN (Pin 5) | Enable Control | Logic-high (>1.2V) enables soft-start; floating enables auto-start via 1.5μA internal pull-up |
| FB (Pin 4) | Feedback Sense | Monitors output via resistor divider; regulates VOUT to 0.8V reference with ±1% tolerance |
Key Features
| Feature | Design Value |
|---|---|
| Constant On-Time (COT) Control | Eliminates need for external compensation components and ensures stable regulation across 4.2–18V input range |
| Proprietary Ringing-Free Gate Driver | Reduces high-frequency radiated EMI without extending MOSFET switching transitions |
| 2.5ms Internal Soft-Start | Prevents output overshoot and inrush current during power-up sequencing |
| Cycle-by-Cycle Valley Current Limit | Protects against short-circuit faults with 2.0–3.5A trip threshold independent of temperature |
| Low-IQ PFM Mode | 135μA quiescent current extends battery life in always-on systems with microampere standby loads |
Applications
| FPGA Core Power Supply | DSP Point-of-Load Regulation |
|---|---|
|
Use Scenario: Powers Xilinx Artix-7 FPGA core rail (1.0V @ 1.5A) from 12V intermediate bus. IC Role / Device Role / Timing Role: Primary DC-DC step-down regulator delivering tightly regulated, low-noise core voltage with fast load transient response. Use Value: COT control maintains <±2% output deviation during 1A–1.5A load steps; EMI-optimized SW node meets Class B radiated emissions without shielding. |
Use Scenario: Supplies TI C6748 DSP I/O and memory rails (3.3V @ 1.2A) in industrial audio processing module. IC Role / Device Role / Timing Role: High-efficiency PoL converter operating in PFM mode during idle periods to extend system runtime. Use Value: 84% efficiency at 5mA light load reduces standby power by 3× versus PWM-only alternatives; 750kHz fSW allows use of 3.3μH inductor. |
| Flat Panel TV Mainboard Power | Gaming Console USB Hub Supply |
|
Use Scenario: Generates 5V for HDMI receiver, tuner, and panel logic in 4K LCD TV mainboard. IC Role / Device Role / Timing Role: Secondary buck regulator sourcing from 12V system rail; handles dynamic 0.2A–2A load profiles. Use Value: Integrated 90mΩ/65mΩ MOSFETs eliminate external FETs and reduce board area by 35%; thermal shutdown protects against prolonged overtemperature in enclosed chassis. |
Use Scenario: Provides isolated 5V power to USB 3.0 hub IC in portable gaming console dock. IC Role / Device Role / Timing Role: Compact, low-profile DC-DC converter meeting strict height constraints (<1mm) in TSOT26 package. Use Value: TSOT26 footprint (1.7×2.9mm) fits tight layout; 135μA IQ minimizes parasitic drain on shared battery supply during sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2451DT-LF-Z | Fixed 2MHz fSW, 0.8V ref, 2A rating, but no PFM mode - higher IQ (260μA) and lower light-load efficiency | Lacks EMI-optimized gate driver; requires additional ferrite beads for CISPR-22 compliance | Choose when fixed high-frequency operation is required for ultra-small inductors, not for EMI-sensitive layouts. |
| TPS562201DDCR | Adaptive COT control, 0.8V ref, 2A, but RDS(ON) = 110mΩ/75mΩ - higher conduction loss at full load | Higher thermal resistance (θJA = 125°C/W) limits continuous 2A operation in compact enclosures | Prefer when TI ecosystem support (WEBENCH, reference designs) outweighs efficiency and thermal advantages of AP62201Z6-7. |
Compared with MP2451DT-LF-Z and TPS562201DDCR, AP62201Z6-7 delivers superior light-load efficiency (84% vs. ≤72%), lower thermal resistance (70°C/W vs. ≥125°C/W), and integrated EMI mitigation-making it optimal for space-constrained, battery-aware, and emission-sensitive designs.
Availability
AP62201Z6-7 is available at Aetrix Electronics and suitable for FPGA core supplies, DSP point-of-load regulation, flat-panel TV mainboard power, and gaming console USB hub supplies requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for AP62201Z6-7 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 manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP62200/AP62201 series belongs to Diodes' high-density synchronous buck converter product line, designed specifically for EMI-sensitive, space-constrained point-of-load applications demanding low quiescent current and robust thermal performance.
FAQ
What is the recommended input capacitor for AP62201Z6-7?
A minimum 10μF X5R/X7R ceramic capacitor placed within 2mm of VIN and GND pins is required to suppress high-frequency switching noise. For 12V input, a 16V-rated 10μF + 22μF parallel combination reduces impedance across 100kHz–10MHz and prevents voltage droop during 2A load steps.
How does the EN pin function when left unconnected?
When EN is floating, an internal 1.5μA pull-up current source charges the pin to the 1.2V logic-high threshold, enabling automatic startup once VIN reaches UVLO release (3.9V). No external pull-up is needed, simplifying single-rail designs where sequenced enable is unnecessary.
Can AP62201Z6-7 operate with a 3.3V output at 2A continuously?
Yes - with a 3.3μH inductor and proper thermal layout (2oz copper, thermal vias under GND pad), AP62201Z6-7 delivers 2A at 3.3V with ≤55°C junction rise above ambient. Efficiency exceeds 88% at 12V input, verified by Figure 26 in DS41957 Rev. 7-2.
What is the purpose of the BST capacitor, and what value is required?
The BST capacitor (100nF, 16V X7R ceramic) forms a charge pump with the SW node to generate sufficient gate drive voltage for the high-side MOSFET. It must be placed adjacent to BST and SW pins with minimal loop area to prevent gate drive instability and ensure reliable 90mΩ RDS(ON) performance.
AP62201Z6-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.2V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 2A
- Frequency - Switching:
- 750kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
AP62201Z6-7 FAQ
1.How can I place an order for AP62201Z6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP62201Z6-7 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 AP62201Z6-7 reliable?
The price and inventory of AP62201Z6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP62201Z6-7 is usually 5 days.
3.What payment methods are accepted for AP62201Z6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP62201Z6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP62201Z6-7?
AP62201Z6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP62201Z6-7 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 AP62201Z6-7?
For technical support, including AP62201Z6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP62201Z6-7 requirements.
6.How does Aetrix verify that AP62201Z6-7 is sourced from the original manufacturer or authorized distributors?
All AP62201Z6-7 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 AP62201Z6-7 meets industry standards.
7.What is the process for return or replacement of AP62201Z6-7?
All AP62201Z6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP62201Z6-7, 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 AP62201Z6-7 part is unused and in its original packaging.
Return procedure for AP62201Z6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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