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Diodes Incorporated AUR9716AGD
- Part No.:
- AUR9716AGD
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
AUR9716AGD.pdf
- Description:
- IC REG BUCK ADJ 2A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,851
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Product details
Overview
AUR9716AGD from Diodes Incorporated is a synchronous step-down DC-DC converter delivering up to 2A output current with adjustable output voltage (0.8V to VIN), operating across 2.5V–5.5V input range, featuring peak-current mode control, integrated P/N-MOSFETs (110mΩ RDS(ON)), and programmable 1.0–1.4MHz switching frequency - deployed in LCD TV power rails and notebook post-regulation stages.
For engineers reviewing the AUR9716AGD datasheet, AUR9716AGD pinout, AUR9716AGD application, or AUR9716AGD equivalent, key selection criteria include feedback reference voltage (0.8V), thermal shutdown threshold (+150°C), soft-start time (800μs), EN logic thresholds (VENH=1.5V, VENL=0.4V), and DFN-3×3-8 package thermal resistance (θJA=39.13°C/W).
Technical Context
The AUR9716AGD implements peak-current mode control with built-in slope compensation to ensure stability at duty cycles >50%, using an internal error amplifier (gm=3000μS) and current-sense transresistance (RT=5Ω). Its oscillator frequency is resistor-programmed via F_ADJ (ROSC), enabling precise 1.0–1.4MHz tuning independent of load or input variation.
It integrates dual MOSFETs for synchronous rectification, supports 100% duty-cycle LDO-mode operation under light load, and features automatic PWM-to-LDO transition to maintain high efficiency across 0–2A output range. Protection includes UVLO (2.3–2.4V hysteresis), overcurrent detection, thermal shutdown (+150°C), and short-circuit recovery via soft-start reinitiation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2A maximum continuous - supports full-load operation in portable computing and display power rails without external current boosting. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion, USB-powered, and 3.3V/5V system rails. |
| Feedback Reference | 0.8V ±2% - enables precise output setting from 0.8V to VIN using standard resistor dividers (e.g., 3.3V @ R1=6.25kΩ, R2=2kΩ). |
| Switching Frequency | 1.0–1.4MHz programmable via ROSC - allows EMI optimization and compact magnetics (1.5–2.2μH inductors, 10μF ceramic output caps). |
| RDS(ON) (P/N-MOS) | 110mΩ typical each - minimizes conduction loss and enables >90% efficiency at 1A/3.3V out from 5V input. |
| Soft-Start Time | 800μs typical - controls inrush current during power-up, preventing input rail droop and downstream supply sequencing issues. |
| Thermal Shutdown | +150°C junction threshold with 30°C hysteresis - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
Package: DFN-3×3-8 with exposed thermal pad soldered to PCB ground plane for enhanced thermal dissipation (θJC=3.39°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 COMP | Compensation node | Connects external R-C network to set loop bandwidth and phase margin; critical for stability with varying output capacitance and ESR. |
| 2 GND | Power and signal ground | Primary return path for power switches and analog circuitry; exposed pad must be thermally and electrically connected to PCB ground plane. |
| 3 EN | Enable control input | Active-high logic input (VENH ≥1.5V); internal pull-up allows default-on operation when left floating. |
| 4 VDD | Main power input | Accepts 2.5–5.5V input; requires local 10μF ceramic bypass capacitor between VDD and GND to suppress switching noise. |
| 5,6 SW | Power switch node | Drain connection of internal P-MOSFET and source of N-MOSFET; carries high di/dt switching current - must be routed short and wide. |
| 7 F_ADJ | Oscillator frequency set | Connects external ROSC resistor to GND (536kΩ–5.1MΩ) to program 1.0–1.4MHz; optional 47pF capacitor improves frequency accuracy. |
| 8 FB | Feedback input | Senses output voltage via resistive divider; 0.8V reference enables accurate regulation and compatibility with common feedback networks. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous Buck Architecture | Integrated 110mΩ P/N-MOSFETs eliminate external Schottky diode, reducing BOM count and improving efficiency by ~5% vs. asynchronous designs. |
| Programmable Switching Frequency | 1.0–1.4MHz via single ROSC resistor - enables EMI compliance in noise-sensitive applications and supports miniaturized LC filters. |
| Automatic PWM/LDO Mode Transition | Seamlessly shifts to 100% duty-cycle LDO mode under light load - maintains regulation while reducing quiescent current to 0.1μA (shutdown) and 460μA (active). |
| Comprehensive Protection Suite | UVLO (2.3–2.4V), thermal shutdown (+150°C), short-circuit recovery via soft-start, and overcurrent limiting - ensures robust field operation without external supervision. |
| Stability-Optimized Compensation | Dedicated COMP pin with external R-C network allows precise pole-zero placement - supports stable operation with 10μF ceramic output capacitors and varied load conditions. |
Applications
| LCD TV Power Management | Notebook Post-Regulation |
|---|---|
|
Use Scenario: Generating 3.3V/2A and 1.8V/2A rails from 5V or 12V intermediate bus for TCON, backlight drivers, and memory interfaces. IC Role / Device Role / Timing Role: Primary synchronous buck regulator handling dynamic load steps during video frame updates and panel brightness changes. Use Value: 90%+ efficiency at 1.5A and 1.4MHz switching minimizes heat buildup in confined TV chassis; 800μs soft-start prevents display flicker at power-on. |
Use Scenario: Converting 5V system rail to 2.5V/2A for DDR memory termination or 1.1V/2A for CPU core logic in ultrabooks. IC Role / Device Role / Timing Role: High-current point-of-load (POL) converter responding to rapid CPU load transients with low output impedance. Use Value: 0.8V feedback reference and <±3% load regulation enable tight voltage tolerance required by JEDEC DDR standards; DFN-3×3-8 footprint saves board space. |
| PDA System Power | Industrial HMI Display |
|
Use Scenario: Supplying 1.8V/2A to ARM-based application processors and 3.3V/1A to touchscreen controllers in handheld PDAs. IC Role / Device Role / Timing Role: Main DC-DC regulator managing battery voltage sag (2.5–4.2V) while maintaining stable core and I/O voltages. Use Value: Wide 2.5–5.5V input range accommodates Li-ion discharge curve; low 0.1μA shutdown current extends battery life in sleep mode. |
Use Scenario: Delivering 5.0V/2A from 12V industrial bus to touch controller, FPGA I/O banks, and LED backlight in factory HMIs. IC Role / Device Role / Timing Role: Robust POL converter operating continuously in -40°C to +80°C ambient with thermal shutdown protection. Use Value: +150°C thermal shutdown and 39.13°C/W θJA allow reliable operation on FR4 PCBs without heatsinks; UVLO prevents brownout-induced firmware corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP3429A | Successor part with identical pinout, 2A rating, 0.8V reference, and 1.0–1.4MHz frequency range; improved thermal performance (θJA=35°C/W) and tighter VFB tolerance (±1%). | Direct replacement in new designs; supports same PCB layout but offers higher reliability margin in thermally constrained enclosures. | Select AP3429A for new designs requiring active support, extended temperature validation (-40°C to +105°C), and RoHS-compliant packaging. |
| MP2143GQ | Monolithic 2A buck with 0.8V reference, 2.5–6V input, and 1.2MHz fixed frequency; lacks F_ADJ programmability and LDO-mode transition. | Requires redesign of feedback and compensation networks; no soft-start adjustment or frequency tuning - less flexible for EMI-sensitive systems. | Consider MP2143GQ only if fixed-frequency operation and simplified BOM outweigh need for programmability and light-load efficiency optimization. |
Compared with AUR9716AGD, AP3429A provides drop-in compatibility with enhanced thermal specs and longer product lifecycle, while MP2143GQ trades configurability for integration simplicity - making AP3429A the preferred upgrade path for continuity-critical applications.
Availability
AUR9716AGD is available at Aetrix Electronics and suitable for LCD TV power management, notebook post-regulation, and industrial HMI display applications requiring stable component supply despite end-of-life status.
Supply support for AUR9716AGD 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 semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.
The AUR9716AGD belongs to Diodes' high-efficiency synchronous buck converter product line, designed specifically for compact, high-current DC-DC conversion in portable and display electronics with stringent thermal and EMI constraints.
FAQ
Is AUR9716AGD still in production?
No - Diodes Incorporated has officially discontinued the AUR9716AGD and marked it obsolete. It is superseded by the AP3429A, which maintains pin-for-pin compatibility, identical electrical specifications, and enhanced thermal performance. Aetrix Electronics holds legacy stock for last-time buy and repair fulfillment, with full traceability and documentation.
What is the minimum recommended output capacitor for stable operation?
The datasheet specifies 10μF ceramic output capacitance (X5R/X7R, ≤10mΩ ESR) as the baseline for all switching frequencies (1.0–1.4MHz). This value ensures sufficient phase margin and limits output ripple to <20mV peak-to-peak under 2A load steps. Lower ESR capacitors improve transient response but require careful compensation network adjustment.
Can AUR9716AGD operate with 100% duty cycle?
Yes - the device supports true 100% duty-cycle operation in LDO mode during light-load conditions, maintaining regulation without switching. This feature eliminates switching losses and reduces output noise when output current drops below ~100mA, extending battery life in portable applications.
How is switching frequency set, and what tolerance should be expected?
Frequency is set by connecting a resistor (ROSC) from F_ADJ (Pin 7) to GND. Values range from 536kΩ (1.0MHz) to 5.1MΩ (1.4MHz). With optional 47pF capacitor, frequency tolerance improves to ±5% across temperature and process variation; without it, tolerance is ±10% due to internal oscillator variance.
AUR9716AGD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-WDFN 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):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 1MHz ~ 1.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 80°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
AUR9716AGD FAQ
1.How can I place an order for AUR9716AGD through Aetrix?
Please submit a Request for Quotation (RFQ) for AUR9716AGD 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 AUR9716AGD reliable?
The price and inventory of AUR9716AGD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUR9716AGD is usually 5 days.
3.What payment methods are accepted for AUR9716AGD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUR9716AGD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AUR9716AGD?
AUR9716AGD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AUR9716AGD 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 AUR9716AGD?
For technical support, including AUR9716AGD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUR9716AGD requirements.
6.How does Aetrix verify that AUR9716AGD is sourced from the original manufacturer or authorized distributors?
All AUR9716AGD 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 AUR9716AGD meets industry standards.
7.What is the process for return or replacement of AUR9716AGD?
All AUR9716AGD units undergo pre-shipment inspection (PSI). If there is an issue with AUR9716AGD, 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 AUR9716AGD part is unused and in its original packaging.
Return procedure for AUR9716AGD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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