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Renesas IW676-30
- Part No.:
- IW676-30
- Manufacturer:
- Renesas
- Package:
- SOT-23-6
- Datasheet:
-
IW676-30.pdf
- Description:
- IC REG FLYBACK ADJ 3A SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,583
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Product details
Overview
The IW676-30 from Renesas Electronics is a digital synchronous rectifier (SR) controller with integrated MOSFET driver for discontinuous conduction mode (DCM) flyback converters. It replaces secondary-side rectifier diodes using lossless VDS sensing, supports output voltages from 3V to 25V, features Active Voltage Positioning (AVP) with 4.75V under-voltage threshold, and enables <20mW no-load power in QC 3.0 multi-level adapters.
For engineers reviewing the IW676-30 datasheet, IW676-30 pinout, IW676-30 application, or IW676-30 equivalent, this page delivers verified technical context, validated pin functions, confirmed AVP behavior, real-world no-load performance data, and direct alternative part comparisons for fast charger and direct-charge system design.
Technical Context
The IW676-30 implements digital adaptive turn-off control to minimize deadtime without requiring an external Schottky diode. Its lossless VDS sensing detects MOSFET conduction state directly from drain-source voltage, eliminating auxiliary current-sense components.
It integrates a pulse linear regulator (PLR) enabling operation down to sub-3V outputs in Direct Charge applications and supports up to 100V drain voltage sensing-removing need for external clamping circuits in multi-level output designs up to 12V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage range | 3V to 25V - supports wide-range USB PD, QC 3.0, and direct-charge adapters without re-design. |
| Drain voltage sensing limit | −1.5V to 100V - eliminates external clamping circuitry in multi-output systems up to 12V. |
| Under-voltage threshold (VUV) | 4.75V - defines AVP activation point for fast transient response in 5V adapter rails. |
| No-load power consumption | <20mW - achieved in QC 3.0 reference designs using iW1782 primary + iW636 secondary controllers. |
| Gate peak output current | ±3A - drives standard 5V logic-level SR MOSFETs with low gate charge in compact SOT23 layout. |
| Operating junction temperature | −40°C to +150°C - qualified for high-density AC/DC adapter thermal environments. |
Pinout & Package
Package: 6-pin SOT23 - surface-mount, thermally enhanced plastic package with θJA = 190°C/W, optimized for space-constrained USB-C chargers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DRAIN | Analog input | VDS sensing node for SR timing; PLR input; AVP function I/O for IW676-30 variant. |
| SOURCE | Analog input | VDS reference node; internally connected to GND in IW676-30C, but functional in IW676-30. |
| OUT | Output | High-current gate driver output (±3A peak) for external N-channel SR MOSFET. |
| GND | Ground | Power and signal reference plane; must be low-impedance connection to minimize noise coupling. |
| VCC | Power input | 5V-regulated internal supply output; powers logic and driver; requires local 1µF ceramic decoupling. |
| VIN | Analog input | System output voltage sense and bias source; LDO-clamped at 5V when >5V; enables PLR/SR enable comparators. |
Key Features
| Feature | Design Value |
|---|---|
| Digital adaptive turn-off control | Minimizes deadtime between SR MOSFET conduction cycles, eliminating need for parallel Schottky diode and reducing BOM count. |
| Lossless VDS sensing | Derives SR switching timing directly from MOSFET drain-source voltage, removing current-sense resistors and associated power loss. |
| Integrated pulse linear regulator (PLR) | Enables stable operation down to sub-3V outputs in constant-current Direct Charge mode, extending usable voltage range below 2.4V. |
| Built-in Active Voltage Positioning (AVP) | Provides fast dynamic load response and ultra-low no-load current (<20mW) without added pins or external components. |
| 6-pin SOT23 footprint | Reduces PCB area by >40% vs. 8-pin alternatives while maintaining full functionality and thermal performance. |
Applications
| USB PD / QC 3.0 Multi-Level Adapters | Direct Charge Systems (Sub-3V) |
|---|---|
Use Scenario: Compact 5V/9V/12V/20V USB PD or Qualcomm Quick Charge 3.0 adapters delivering up to 2.5A with multi-rail output switching. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier controller coordinating with iW1782 primary and iW636 secondary controllers to manage rail transitions and maintain <20mW no-load power. Use Value: Enables compliance with stringent EU CoC Tier 2 and DOE Level VI efficiency standards across all output levels. | Use Scenario: Smartphones and tablets implementing USB-C Direct Charge architecture with VBUS switch control and MD interface via D+/D− or CC1/CC2. IC Role / Device Role / Timing Role: SR controller interfacing with iW1780H-30 primary-side IC to regulate sub-3V battery charging rails while maintaining precise voltage positioning during CC/CV transitions. Use Value: Supports continuous operation down to 2.4V in constant-current mode and sub-3V in Direct Charge, improving charge efficiency over legacy diode-based solutions. |
| Low-Profile Media Tablet Chargers | Ultra-Low Standby Power AC/DC Adapters |
Use Scenario: 10–15W wall adapters for media tablets requiring minimal height, high efficiency at light loads, and rapid transient response. IC Role / Device Role / Timing Role: Digital SR controller replacing secondary diode in DCM flyback topology; uses AVP to suppress output overshoot during sudden load steps from 0mA to 2A. Use Value: Achieves <30mW no-load power in 5V/2.5A reference designs using iW1602 primary-side controller, meeting ENERGY STAR® requirements. | Use Scenario: Energy-sensitive consumer electronics adapters where standby power must remain below 30mW across universal AC input (90–264VAC). IC Role / Device Role / Timing Role: Intelligent SR controller with digital adaptive turn-off and PLR regulation, dynamically disabling gate drive during deep no-load conditions. Use Value: Reduces system-level no-load consumption by 40–60% versus analog SR controllers, without sacrificing transient performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous rectifier controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC24612-2QDRQ1 | Automotive-grade AEC-Q100 qualified; fixed 5V VUV; no AVP; supports up to 100V drain sensing. | Targeted at automotive infotainment power supplies; lacks AVP and sub-3V PLR support required for consumer direct-charge. | Select only for automotive environments requiring qualification; not suitable for USB PD/QC 3.0 multi-level or Direct Charge use cases. |
| MP6908AGS-Z | Fixed 4.5V VUV; no AVP; analog turn-off control; supports 3–24V output range; 100V drain rating. | Used in cost-sensitive 5V/9V adapters; lacks digital adaptive timing and PLR for sub-3V operation. | Acceptable for basic 5V/9V adapters without AVP or Direct Charge needs; does not match IW676-30's dynamic response or low-voltage capability. |
Compared with UCC24612-2QDRQ1 and MP6908AGS-Z, the IW676-30 uniquely combines AVP-enabled fast transient response, sub-3V Direct Charge support via PLR, and digital adaptive turn-off-making it the only option among the three qualified for QC 3.0 multi-level and smartphone battery charging applications.
Availability
The IW676-30 is available at Aetrix Electronics and suitable for USB PD adapters, Qualcomm Quick Charge 3.0 power supplies, and Direct Charge smartphone charging systems requiring stable component supply and legacy design continuity.
Supply support for IW676-30 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
Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and SoC products for automotive, industrial, infrastructure, and IoT applications.
The IW676 series belongs to Renesas' high-efficiency AC/DC secondary-side controller product line, designed specifically for digitally controlled synchronous rectification in compact, multi-level, and ultra-low-no-load-power USB-C chargers.
FAQ
What is the Active Voltage Positioning (AVP) function in the IW676-30?
The IW676-30 integrates Active Voltage Positioning (AVP) to detect and respond to output voltage transients faster than conventional controllers. This feature reduces output overshoot during load steps and maintains tight regulation without external compensation components. The IW676-30 implements AVP with a 4.75V under-voltage threshold, enabling optimized performance in 5V USB-C adapter rails.
Does the IW676-30 support operation below 3V output voltage?
Yes, the IW676-30 supports Direct Charge applications down to sub-3V levels using its integrated pulse linear regulator (PLR). In constant-current (CC) mode, it operates stably below 2.4V. This capability is confirmed in Figure 3.4 of the official product summary and is enabled by the PLR's ability to regulate bias from very low output voltages.
What is the maximum drain voltage the IW676-30 can sense?
The IW676-30 supports drain voltage sensing from −1.5V to 100V, as specified in the Absolute Maximum Ratings table. This allows direct connection to SR MOSFET drains in multi-level output applications up to 12V without external clamping circuits-reducing component count and improving reliability in QC 3.0 and USB PD designs.
Is the IW676-30 pin-compatible with the IW676-30C?
Yes, the IW676-30 and IW676-30C share identical 6-pin SOT23 packaging and pinout. However, the SOURCE pin is functional in IW676-30 but internally tied to GND in IW676-30C. Designs using IW676-30 must retain the SOURCE connection; migration to IW676-30C requires verifying that GND tie does not affect system behavior.
What no-load power consumption is achievable with the IW676-30 in a reference design?
The IW676-30 achieves <20mW no-load power consumption in QC 3.0 multi-level output reference designs using iW1782 as the primary-side controller and iW636 as the secondary-side controller. This result is documented in Figure 3.3 of the official product summary and reflects the combined effect of AVP, intelligent low-power management, and digital adaptive turn-off control.
IW676-30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Flyback
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- 25V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- 25V
- Current - Output:
- 3A
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
IW676-30 FAQ
1.How can I place an order for IW676-30 through Aetrix?
Please submit a Request for Quotation (RFQ) for IW676-30 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 IW676-30 reliable?
The price and inventory of IW676-30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IW676-30 is usually 5 days.
3.What payment methods are accepted for IW676-30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IW676-30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IW676-30?
IW676-30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IW676-30 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 IW676-30?
For technical support, including IW676-30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IW676-30 requirements.
6.How does Aetrix verify that IW676-30 is sourced from the original manufacturer or authorized distributors?
All IW676-30 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 IW676-30 meets industry standards.
7.What is the process for return or replacement of IW676-30?
All IW676-30 units undergo pre-shipment inspection (PSI). If there is an issue with IW676-30, 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 IW676-30 part is unused and in its original packaging.
Return procedure for IW676-30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IW676-30 Tags
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TPS561201DDCR
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MC33063ADR
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AP3012KTR-G1
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AZ34063UMTR-G1
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MC34063EBD-TR
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