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Diodes Incorporated AP63205WU-7
- Part No.:
- AP63205WU-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
AP63205WU-7.pdf
- Description:
- IC REG BUCK 5V 2A TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:25,240
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Product details
Overview
AP63205WU-7 from Diodes Incorporated is a 5.0V fixed-output, 2A synchronous buck converter with 3.8V–32V input range, integrated 125mΩ high-side and 68mΩ low-side MOSFETs, 1.1MHz switching frequency, ±6% frequency spread spectrum (FSS), and 22µA quiescent current. It delivers high-efficiency DC/DC conversion for FPGA, DSP, and consumer electronics power rails where EMI reduction and compact footprint are critical.
For engineers reviewing the AP63205WU-7 datasheet, AP63205WU-7 pinout, AP63205WU-7 application, or AP63205WU-7 equivalent, key selection considerations include its fixed 5V output, TSOT26 package thermal performance (θJA = 89°C/W), FSS-enabled EMI compliance, PFM light-load efficiency (88% @ 5mA), and precision enable threshold (1.18V) for programmable UVLO.
Technical Context
The AP63205WU-7 employs peak current mode control with internal slope compensation to ensure stability at duty cycles >50%, and integrates a complete compensation network to eliminate external loop components. Its proprietary multi-level gate driver suppresses SW node ringing without degrading rise/fall times, directly reducing high-frequency radiated EMI.
It operates in forced PWM under heavy load and transitions to Pulse Frequency Modulation (PFM) below ~450mA inductor current, enabling ultralow IQ (22µA typ.) and 88% efficiency at 5mA. Thermal shutdown activates at +160°C with +25°C hysteresis, and cycle-by-cycle OCP limits peak current to 2.8A (typ.) with hiccup-mode recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.8V to 32V DC - supports 12V/24V industrial and consumer bus supplies without pre-regulation. |
| Output Voltage | Fixed 5.00V ±1% - eliminates external feedback resistors; enables plug-and-play integration for USB-powered peripherals and logic rails. |
| Switching Frequency | 1.1MHz ±10% - allows use of smaller 4.7µH inductors and reduces solution size vs. 500kHz alternatives. |
| Quiescent Current | 22µA typical - extends battery life in always-on systems such as smart home sensors and IoT edge nodes. |
| FSS Jitter | ±6% - spreads conducted/radiated EMI energy across ~132kHz bandwidth, easing CISPR 32 Class B compliance. |
| Thermal Shutdown | +160°C with +25°C hysteresis - provides robust overtemperature protection while allowing full 2A output up to +85°C ambient. |
| Enable Threshold | 1.18V rising / 1.10V falling - enables precise UVLO programming via external resistor divider for system-level power sequencing. |
Pinout & Package
AP63205WU-7 is housed in a thermally enhanced, lead-free TSOT26 package (2.9mm × 1.6mm × 0.6mm), optimized for high-power density PCB layouts with minimal thermal vias required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback sensing input | Monitors output voltage via internal 5.00V reference; not connected externally for fixed-output variant. |
| 2 EN | Enable control input | Digital on/off control with 1.18V precision threshold; internal 1.5µA pull-up enables auto-start when tied to VIN. |
| 3 VIN | Main power input | Accepts 3.8V–32V; requires local 10µF ceramic bypass capacitor to suppress switching noise and stabilize regulation. |
| 4 GND | Power ground reference | Common return path for high-side/low-side MOSFETs and control circuitry; must be low-inductance connection to minimize EMI. |
| 5 SW | Switching node output | Drives external LC filter; connects to inductor and BST capacitor; high dv/dt node requiring tight layout to reduce radiation. |
| 6 BST | Bootstrap supply input | Requires 100nF ceramic capacitor between BST and SW to generate gate drive voltage for high-side MOSFET. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | 125mΩ HS + 68mΩ LS MOSFETs - eliminates external switch selection, reduces BOM count, and ensures matched timing/loss characteristics. |
| EMI Reduction Architecture | FSS + ringing-free gate driver - achieves >10dB peak EMI reduction vs. standard buck converters without added filters or shielding. |
| Light-Load Efficiency | 88% @ 5mA in PFM mode - sustains high efficiency down to microamp loads, critical for standby power in consumer audio and set-top boxes. |
| Protection Suite | Cycle-by-cycle OCP, thermal shutdown, and overvoltage protection - enables robust operation in unregulated input environments like automotive accessory rails. |
| Soft-Start | 4ms internal ramp - prevents output overshoot and inrush current during power-up, eliminating need for external soft-start circuitry. |
Applications
| Home Audio Systems | FPGA Core Power |
|---|---|
|
Use Scenario: Powering DACs, amplifiers, and digital signal processors in compact soundbars and streaming receivers. IC Role / Device Role / Timing Role: Primary 5V rail regulator delivering clean, low-noise power with minimal board area. Use Value: FSS and ringing-free SW node meet IEC 61000-3-2 harmonic limits and reduce need for ferrite beads or shielded inductors. |
Use Scenario: Supplying configurable logic and transceivers in Xilinx Artix-7 or Intel Cyclone V FPGA designs. IC Role / Device Role / Timing Role: Point-of-load (POL) converter providing stable 5V I/O or auxiliary rail with fast transient response. Use Value: 1.1MHz switching enables <5µs load-step recovery time and supports tight voltage tolerances (<±2%) under dynamic FPGA core loading. |
| Network Routers | Gaming Consoles |
|
Use Scenario: Generating 5V for Ethernet PHYs, USB hubs, and Wi-Fi SoCs in small-form-factor enterprise switches. IC Role / Device Role / Timing Role: Secondary buck stage stepping down 12V mid-rail to isolated 5V domains. Use Value: TSOT26 footprint and 22µA IQ reduce thermal load in densely packed PCBs while supporting Energy Star standby requirements. |
Use Scenario: Powering HDMI interface ICs, memory buffers, and controller subsystems in next-gen gaming hardware. IC Role / Device Role / Timing Role: High-reliability 5V supply with hiccup-mode OCP to survive short-circuit events during hot-plug operations. Use Value: +160°C thermal shutdown and 2.8A peak current limit prevent latch-up during transient overloads caused by GPU/CPU burst activity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output synchronous buck applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2451DT-LF-Z (Monolithic Power) | 5V fixed, 2A, 2MHz, 36V max input, no FSS, 30µA IQ | Lacks EMI-reduction features; requires external compensation; higher switching loss at 2MHz | Choose when board space is more constrained than EMI budget, and input voltage may exceed 32V. |
| TPS54202HDDCR (Texas Instruments) | 5V fixed, 2A, 500kHz, 28V max input, FSS, 26µA IQ, integrated soft-start | Lower max input voltage; slower switching increases inductor size; identical FSS implementation | Prefer when operating from ≤28V sources and thermal design prioritizes lower θJA (65°C/W) over switching frequency. |
Compared with MP2451DT-LF-Z and TPS54202HDDCR, AP63205WU-7 uniquely combines 32V input capability, 1.1MHz FSS operation, and 22µA IQ in TSOT26-enabling smaller magnetics, broader input compatibility, and lower standby power in EMI-sensitive consumer platforms.
Availability
AP63205WU-7 is available at Aetrix Electronics and suitable for FPGA power supplies, home audio subsystems, and network router mid-rails requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP63205WU-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 AP6320x family targets cost-sensitive, space-constrained applications demanding low EMI and high light-load efficiency-designed specifically for distributed power architectures in flat-panel displays, white goods, and portable electronics.
FAQ
What is the maximum recommended input voltage for continuous operation?
The AP63205WU-7 supports continuous operation up to 32V DC per its Recommended Operating Conditions. Absolute maximum rating allows 40V for ≤400ms, but sustained operation above 32V risks exceeding thermal limits and violating SOA boundaries of the integrated MOSFETs. Design margin should maintain VIN ≤32V with 10% derating for ripple and transients.
Can the AP63205WU-7 be used in automotive applications?
The AP63205WU-7 is not AEC-Q200 qualified. Diodes offers the automotive-grade AP63205QWU-7 variant with extended temperature range (−40°C to +125°C), enhanced ESD robustness (HBM 4kV), and PPAP documentation. Use AP63205QWU-7 for infotainment, ADAS camera modules, or body control units requiring automotive qualification.
Does the device require an external feedback resistor network?
No. The AP63205WU-7 has a factory-trimmed internal 5.00V reference and fixed feedback path; pins FB and GND are internally connected to the error amplifier. External resistors are unnecessary and must not be added, as they would disrupt regulation accuracy and stability.
How does the hiccup-mode overcurrent protection behave during sustained overload?
When peak current limit is triggered continuously for 2ms, AP63205WU-7 enters hiccup mode: it shuts down for 16ms, then attempts restart with full 4ms soft-start. This cycle repeats until fault clears. Hiccup mode limits average power dissipation to <150mW, preventing thermal runaway during output shorts or excessive load currents.
AP63205WU-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.8V
- Voltage - Input (Max):
- 32V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 1.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
AP63205WU-7 FAQ
1.How can I place an order for AP63205WU-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP63205WU-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 AP63205WU-7 reliable?
The price and inventory of AP63205WU-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP63205WU-7 is usually 5 days.
3.What payment methods are accepted for AP63205WU-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP63205WU-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP63205WU-7?
AP63205WU-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP63205WU-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 AP63205WU-7?
For technical support, including AP63205WU-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP63205WU-7 requirements.
6.How does Aetrix verify that AP63205WU-7 is sourced from the original manufacturer or authorized distributors?
All AP63205WU-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 AP63205WU-7 meets industry standards.
7.What is the process for return or replacement of AP63205WU-7?
All AP63205WU-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP63205WU-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 AP63205WU-7 part is unused and in its original packaging.
Return procedure for AP63205WU-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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