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Diodes Incorporated AUR9717AGD
- Part No.:
- AUR9717AGD
- Manufacturer:
- Diodes Incorporated
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
AUR9717AGD.pdf
- Description:
- IC REG BUCK ADJ 1A DL 10WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,898
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Product details
Overview
AUR9717AGD from Diodes Incorporated is a dual-channel, synchronous step-down DC-DC converter delivering 1A per channel with fixed 1.5MHz PWM switching, integrated power MOSFETs, and automatic PWM/LDO mode transition for high efficiency across light-to-heavy loads. It features adjustable output (1V–3.3V), 600mV feedback reference, input over-voltage protection (6V), and operates from 2.5V–5.5V input in portable power management systems.
For engineers reviewing the AUR9717AGD datasheet, AUR9717AGD pinout, AUR9717AGD application, or AUR9717AGD equivalent, key selection criteria include dual independent buck regulation, internal compensation, thermal shutdown (160°C), WDFN-3×3-10 package layout constraints, and IOVP/UVLO thresholds critical for battery-powered handheld devices.
Technical Context
The AUR9717AGD implements peak-current-mode control with constant-frequency 1.5MHz operation, enabling compact external LC filtering using 2.2μH inductors and 10μF ceramic output capacitors. Each channel integrates complementary PMOS/NMOS power switches (RON_P = 0.28Ω, RON_N = 0.25Ω at 200mA) and dedicated EN/FB/LX pins for independent enable and feedback control.
It supports automatic mode switching between PWM and LDO operation to maintain high efficiency under light load, with soft-start (typical 2ms), 0.6V ±2.5% feedback voltage accuracy, and input voltage differential limit (|VIN1−VIN2| ≤ 0.3V) ensuring stable dual-rail operation in tightly coupled supply domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1A per channel - supports dual-core processors or multi-rail SoC subsystems without external current boosting. |
| Switching Frequency | 1.5MHz (±20%) - enables use of small 2.2μH inductors and low-ESR ceramic capacitors in space-constrained PCB layouts. |
| Feedback Voltage | 0.6V ±2.5% - sets precise output via resistor divider; allows 1V–3.3V adjustment with <±3% total output error over line/load/temp. |
| Input Voltage Range | 2.5V–5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and regulated 3.3V/5V rails. |
| IOVP Threshold | 6V - protects internal MOSFETs from transient overvoltage on VIN1/VIN2 without external clamping diodes. |
| Thermal Shutdown | 160°C - latches off both channels until junction cools below hysteresis threshold, preventing permanent damage during sustained overload. |
| Quiescent Current | 0.1–1μA in shutdown - minimizes battery drain in always-on standby states for portable electronics. |
Pinout & Package
The AUR9717AGD is housed in a thermally enhanced WDFN-3×3-10 package with exposed thermal pad (pin 4/9 GND), supporting high-power density and efficient heat dissipation on standard PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1 / EN2 | Active-high enable inputs | Independent channel control; logic-high (>1.5V) initiates startup; <0.6V forces shutdown with <1μA quiescent draw. |
| FB1 / FB2 | Feedback voltage sense inputs | Monitor output voltage via resistive divider; internal 600mV reference sets regulation point; 30nA bias current minimizes divider error. |
| VIN1 / VIN2 | Power input supplies | Accept 2.5–5.5V each; |VIN1−VIN2| must stay ≤0.3V to prevent internal stress; decoupling caps required at each pin. |
| LX1 / LX2 | Switch node outputs | Drive external inductors; connect directly to inductor top; high dv/dt requires minimized trace area to reduce EMI coupling to FB pins. |
| GND (pins 4,9) | Power and signal ground reference | Common return for NMOSFET sources and internal circuitry; must be low-impedance plane tied to thermal pad for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent buck regulators | Two fully isolated 1A channels with separate EN, FB, VIN, and LX pins-enables split-rail power for RF + baseband or core + I/O domains. |
| Integrated synchronous MOSFETs | Eliminates need for external Schottky diodes; reduces conduction loss and improves full-load efficiency by >8% vs. asynchronous designs. |
| Automatic PWM/LDO mode switching | Maintains >85% efficiency down to 1mA load by transitioning to LDO-like operation-critical for ultra-low-power sleep modes. |
| Built-in input over-voltage protection | Clamps at 6V and disables switching before damage occurs-removes need for external TVS or OVP ICs in USB- or adapter-powered systems. |
| Internal compensation network | Reduces BOM count by eliminating external compensation components; ensures stable loop response with standard 2.2μH/10μF output filter. |
Applications
| Mobile Phone Power Management | Digital Camera Dual-Rail Supply |
|---|---|
|
Use Scenario: Powering application processor cores and memory I/O rails from single Li-ion battery. IC Role / Device Role / Timing Role: Dual-channel buck regulator providing independent 1.2V core and 1.8V I/O supplies with fast transient response. Use Value: Achieves >90% efficiency at 500mA load per rail while maintaining <±2% output regulation across battery discharge (3.0–4.2V). |
Use Scenario: Simultaneous powering of CMOS image sensor analog front-end and digital ISP block. IC Role / Device Role / Timing Role: Generates clean, low-noise 2.8V analog and 1.2V digital supplies with independent enable control for power sequencing. Use Value: Internal 1.5MHz switching avoids interference with image sensor sampling clocks; IOVP prevents damage from hot-plug USB charging events. |
| Notebook Computer Post-Regulation | Wireless Headset Audio Codec Supply |
|
Use Scenario: Tight-tolerance post-regulation of 5V system rail to generate 3.3V and 1.5V for USB controller and touchpad MCU. IC Role / Device Role / Timing Role: Dual buck converter replacing discrete LDOs to improve efficiency and reduce thermal load in thin-form-factor chassis. Use Value: Delivers 1A per channel with <15mV output ripple (20MHz BW), meeting USB 2.0 noise immunity requirements without added ferrite beads. |
Use Scenario: Ultra-low-quiescent power supply for Bluetooth audio codec and MEMS microphone preamp in battery-operated headset. IC Role / Device Role / Timing Role: Provides 1.8V digital and 3.3V analog rails with automatic light-load LDO mode to extend talk time. Use Value: 0.1μA shutdown current and <10μA light-load IQ enable >100-hour standby; soft-start prevents pop-noise during power-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RTQ2132B-QT | Higher 2A per channel, 2.5MHz switching, AEC-Q100 Grade 1 qualified; no IOVP; larger QFN-16 package. | Targeted at automotive infotainment; lacks input overvoltage protection needed for consumer USB adapters. | Select when higher current or automotive qualification is mandatory; avoid if IOVP or WDFN-10 footprint is required. |
| TPS65270PWP | Dual 1.5A/1A channels, 3.5V–28V input, external compensation, no integrated IOVP or thermal shutdown latch. | Designed for industrial DC-input systems; requires external protection circuitry and loop tuning effort. | Choose for wide-input industrial rails; not suitable for compact battery-powered designs requiring plug-and-play protection. |
Compared with RTQ2132B-QT and TPS65270PWP, the AUR9717AGD uniquely combines dual 1A regulation, built-in IOVP, thermal latch, and WDFN-3×3-10 footprint-making it optimal for space-constrained, adapter-fed portable devices where reliability and BOM simplicity are prioritized over ultra-high current or extended input range.
Availability
AUR9717AGD is available at Aetrix Electronics and suitable for mobile phone power management, digital camera dual-rail supply, and notebook computer post-regulation requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for AUR9717AGD 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 consumer, industrial, and automotive markets.
The AUR9717 belongs to Diodes' high-density DC-DC converter product line, designed specifically for portable electronics requiring dual independent buck regulation, integrated protection, and minimal external components in sub-3mm² footprints.
FAQ
What is the maximum allowable voltage difference between VIN1 and VIN2?
The absolute voltage difference between VIN1 and VIN2 must not exceed 0.3V, as specified in the Absolute Maximum Ratings table. Exceeding this limit risks internal stress and potential device failure due to unbalanced current sharing between channels. This constraint requires tight regulation or common-source feeding for dual-rail operation.
Does the AUR9717AGD require external compensation components?
No, the AUR9717AGD includes an internal compensation network optimized for standard 2.2μH inductors and 10μF ceramic output capacitors. External compensation is unnecessary unless custom loop response or unusual output filter configurations are required-verified by load-step testing per Figure 14 in the datasheet.
How does the automatic PWM/LDO mode switching improve efficiency?
Under light load (<10mA), the AUR9717AGD transitions from PWM to LDO-like operation, reducing switching losses and gate charge current draw. This maintains >85% efficiency at 1mA-significantly better than fixed-frequency PWM-only converters-and extends battery life in standby or sleep modes without manual mode control.
Can the AUR9717AGD be used in automotive applications?
The AUR9717AGD is not AEC-Q100 qualified and is not recommended for automotive safety-critical systems. Diodes Incorporated explicitly states that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing-none of which apply to the AUR9717AGD. Use only in non-safety consumer or industrial applications.
AUR9717AGD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 3.3V
- Current - Output:
- 1A
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 80°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-WDFN (3x3)
AUR9717AGD FAQ
1.How can I place an order for AUR9717AGD through Aetrix?
Please submit a Request for Quotation (RFQ) for AUR9717AGD 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 AUR9717AGD reliable?
The price and inventory of AUR9717AGD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUR9717AGD is usually 5 days.
3.What payment methods are accepted for AUR9717AGD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUR9717AGD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AUR9717AGD?
AUR9717AGD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AUR9717AGD 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 AUR9717AGD?
For technical support, including AUR9717AGD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUR9717AGD requirements.
6.How does Aetrix verify that AUR9717AGD is sourced from the original manufacturer or authorized distributors?
All AUR9717AGD 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 AUR9717AGD meets industry standards.
7.What is the process for return or replacement of AUR9717AGD?
All AUR9717AGD units undergo pre-shipment inspection (PSI). If there is an issue with AUR9717AGD, 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 AUR9717AGD part is unused and in its original packaging.
Return procedure for AUR9717AGD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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