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Diodes Incorporated AP62250Z6-7
- Part No.:
- AP62250Z6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-563, SOT-666
- Datasheet:
-
AP62250Z6-7.pdf
- Description:
- IC REG BUCK ADJ 2.5A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:77,127
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Product details
Overview
AP62250Z6-7 from Diodes Incorporated is a 2.5A synchronous buck converter with 4.2V–18V input range, integrated 75mΩ high-side and 45mΩ low-side MOSFETs, 1.3MHz switching frequency (VIN=12V, VOUT=5V), 0.8V ±1% reference voltage, and 155μA quiescent current in PFM mode-designed for EMI-sensitive point-of-load regulation in flat-panel TVs and FPGA power supplies.
For engineers reviewing the AP62250Z6-7 datasheet, AP62250Z6-7 pinout, AP62250Z6-7 application, or AP62250Z6-7 equivalent, key selection considerations include its COT control architecture for fast transient response, proprietary gate driver for ringing-free SW node, cycle-by-cycle valley current limit, thermal shutdown at +160°C, and dual-package availability (SOT563/TSOT26) with validated thermal resistance (θJA = 110°C/W and 70°C/W).
Technical Context
The AP62250Z6-7 employs Constant On-Time (COT) control to deliver pseudo-fixed-frequency operation across input voltage variations, with on-time calculated as tON = VOUT/(VIN × fSW). Its multi-level gate driver suppresses switching-node ringing without degrading rise/fall times, directly reducing high-frequency radiated EMI.
It integrates protection functions including undervoltage lockout (UVLO falling threshold 3.6V), cycle-by-cycle valley current limiting (3.2–4.2A), and thermal shutdown (+160°C with +20°C hysteresis). The EN pin supports both enable/disable control and programmable UVLO via external resistor divider.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.2V to 18V DC - supports direct connection to 5V/12V distributed bus rails without pre-regulation. |
| IOUT Max | 2.5A continuous - sufficient for FPGA core, DSP I/O, or ASIC auxiliary rail power delivery. |
| fSW | 1.3MHz typical (VIN=12V, VOUT=5V) - enables compact LC filter design with ≤2.2μH inductor and minimal output capacitance. |
| IQ | 155μA in PFM no-load - extends battery runtime in always-on subsystems and low-power standby modes. |
| VFB Accuracy | 0.800V ±1% at TA=+25°C - ensures tight output regulation (±1.6% over full temp/load range) for noise-sensitive analog circuitry. |
| RDS(ON) HS/LS | 75mΩ / 45mΩ - minimizes conduction loss at 2.5A, enabling >90% peak efficiency at 12V→5V conversion. |
| Thermal Shutdown | +160°C with +20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal layout. |
Pinout & Package
AP62250Z6-7 is available in TSOT26 (Standard) package - a 6-pin, 1.6mm × 2.9mm, 0.95mm height surface-mount package with exposed thermal pad for enhanced heat dissipation (θJA = 70°C/W on 2-layer FR-4).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Supplies IC bias and high/low-side MOSFETs; requires ≥10μF ceramic bypass capacitor to GND for stable operation. |
| SW | Switching Node | Connects to inductor input; carries high di/dt current-requires short, low-inductance routing to minimize EMI. |
| GND | Power Ground | Primary return path for high-side/low-side currents; must be tied to thermal pad and input/output capacitors. |
| BST | Bootstrap Supply | Drives high-side MOSFET gate; requires 100nF ceramic capacitor between BST and SW for reliable turn-on. |
| EN | Enable Control | Digital logic input (1.2V threshold); floating enables auto-start; external RC delays startup for power sequencing. |
| FB | Feedback Sense | Monitors resistive divider output; sets VOUT = 0.8V × (1 + R1/R2); high-impedance input minimizes divider current error. |
Key Features
| Feature | Design Value |
|---|---|
| Constant On-Time (COT) Control | Enables <100μs load transient recovery without external compensation components-ideal for dynamic FPGA/DSP loads. |
| Proprietary Ringing-Free Gate Driver | Eliminates SW node oscillation above 100MHz while preserving <10ns MOSFET switching edges-reduces Class B EMI test failures. |
| Valley Current Limit Protection | Monitors LS MOSFET conduction current in real time; triggers hiccup mode after 2.5ms sustained overcurrent-prevents thermal runaway. |
| Programmable UVLO via EN Pin | Uses internal 5.5μA pull-up to set custom VIN turn-on/off thresholds (e.g., 4.5V/4.0V) with two external resistors-supports multi-rail sequencing. |
| Soft-Start Time | Fixed 2.5ms internal ramp-limits inrush current into output capacitors and avoids input supply droop during power-up. |
Applications
| Flat Panel TV Power Rails | FPGA Core Voltage Supply |
|---|---|
Use Scenario: Regulating 12V bus to 1.2V/1.8V for LCD panel timing controllers and video processing SoCs. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering clean, low-noise core voltage with fast transient response to burst-mode video data streams. Use Value: COT control and EMI-optimized switching reduce conducted emissions below CISPR-32 limits without added ferrite beads or shielding. |
Use Scenario: Providing adjustable 0.8V–1.2V core power to Xilinx Artix-7 or Intel Cyclone V FPGAs under dynamic logic switching. IC Role / Device Role / Timing Role: Point-of-load DC-DC converter with precise VFB accuracy and low IQ to maintain FPGA configuration integrity during low-power states. Use Value: 0.8V ±1% reference and 2.5A capability ensure stable operation across process/voltage/temperature corners per Xilinx DC & Switching Characteristics specs. |
| Home Audio Amplifier Bias Rails | Network Router PoL Conversion |
Use Scenario: Generating ±5V and +3.3V rails for Class-D audio amplifier ICs and DACs in smart speakers. IC Role / Device Role / Timing Role: Secondary buck stage stepping down 12V system rail to low-noise analog supply, synchronized to avoid beat frequencies with audio clock domains. Use Value: Low 155μA quiescent current extends standby battery life; 1.3MHz fSW places switching harmonics beyond audible band (20kHz). |
Use Scenario: Converting 12V midplane voltage to 5V/3.3V for Ethernet PHYs, switch fabric, and management microcontrollers in SOHO routers. IC Role / Device Role / Timing Role: High-efficiency, space-constrained POL regulator supporting bursty packet-processing loads with minimal thermal footprint. Use Value: TSOT26 package (θJA = 70°C/W) sustains 2.5A output at +70°C ambient without heatsink-enabling fanless router enclosure designs. |
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 | 2A max output, 3.3V–36V input, fixed 500kHz fSW, no programmable UVLO, higher IQ (260μA) | Lacks COT control and EMI-optimized gate drive; less suitable for fast-transient FPGA loads or strict EMI environments | Prefer when wide VIN range (>18V) is required and EMI constraints are relaxed |
| TPS562210ADDFR | 2.5A, 4.5V–18V, D-CAP2 control, 650kHz fSW, 110μA IQ, integrated boot diode | No proprietary ringing suppression; lower IQ but slower transient response than COT; requires external BST capacitor | Choose for TI ecosystem compatibility and lower light-load IQ where EMI margin allows |
Compared with MP2451DT-LF-Z and TPS562210ADDFR, AP62250Z6-7 delivers superior EMI performance via its ringing-free gate driver, faster transient response via COT architecture, and tighter VFB accuracy-making it optimal for noise-critical consumer electronics and compact industrial PoL designs where board space and EMC certification are constrained.
Availability
AP62250Z6-7 is available at Aetrix Electronics and suitable for flat-panel TV power rails, FPGA core voltage supplies, and network router point-of-load conversion requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP62250Z6-7 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-performance power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP62250 belongs to Diodes' high-efficiency synchronous buck converter product line, engineered specifically for EMI-sensitive, space-constrained point-of-load applications demanding fast transient response, low quiescent current, and robust thermal protection.
FAQ
What is the recommended input capacitor for AP62250Z6-7?
A minimum 10μF X5R/X7R ceramic capacitor placed within 2mm of VIN and GND pins is required to suppress high-frequency switching noise and prevent input voltage droop. Diodes recommends using two parallel capacitors: one 10μF (0805) and one 100nF (0402) for broadband decoupling across 100Hz–100MHz.
Can AP62250Z6-7 operate in forced PWM mode?
No-the AP62250Z6-7 only supports automatic transition between CCM and PFM modes based on load current. It lacks a MODE pin or external control to force continuous PWM operation. At light loads, it enters PFM to achieve 155μA quiescent current, and automatically resumes CCM above ~200mA output current.
How is the output voltage set, and what tolerance does the feedback network introduce?
VOUT is set by an external resistor divider from output to FB pin, using VOUT = 0.8V × (1 + R1/R2). With standard 1% resistors, the total output tolerance is ±1.6% (including 1% VFB accuracy, 1% resistor tolerance, and temperature drift)-verified across –40°C to +85°C operating range per DS42701 Rev. 2-2.
Does AP62250Z6-7 require an external bootstrap diode?
No-an internal charge pump eliminates the need for an external bootstrap diode. A 100nF ceramic capacitor must be placed between BST and SW pins to sustain high-side gate drive; this capacitor is charged during low-side conduction and discharged during high-side turn-on, ensuring reliable 100% duty cycle capability up to VOUT ≈ 0.9 × VIN.
AP62250Z6-7 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:
- 2.5A
- Frequency - Switching:
- 1.3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
AP62250Z6-7 FAQ
1.How can I place an order for AP62250Z6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP62250Z6-7 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 AP62250Z6-7 reliable?
The price and inventory of AP62250Z6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP62250Z6-7 is usually 5 days.
3.What payment methods are accepted for AP62250Z6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP62250Z6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP62250Z6-7?
AP62250Z6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP62250Z6-7 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 AP62250Z6-7?
For technical support, including AP62250Z6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP62250Z6-7 requirements.
6.How does Aetrix verify that AP62250Z6-7 is sourced from the original manufacturer or authorized distributors?
All AP62250Z6-7 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 AP62250Z6-7 meets industry standards.
7.What is the process for return or replacement of AP62250Z6-7?
All AP62250Z6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP62250Z6-7, 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 AP62250Z6-7 part is unused and in its original packaging.
Return procedure for AP62250Z6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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