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Richtek USA Inc. RT6576DGQW(2)
- Part No.:
- RT6576DGQW(2)
- Manufacturer:
- Richtek USA Inc.
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
RT6576DGQW(2).pdf
- Description:
- IC 2CH CTRLR WITH LDO WQFN-20
- Quantity:
- Payment:
- Shipping:
Inventory:1,446
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Product details
Overview
RT6576DGQW(2) from Richtek USA Inc. is a four-output power-management IC combining two synchronous step-down controller channels with two LDO regulator outputs. The device is designed for battery-powered and embedded systems that need two adjustable switching rails plus auxiliary linear supplies from a 5V to 25V input range.
As part of the RT6576C/D product family, RT6576DGQW(2) combines 300kHz and 355kHz buck operation, integrated sequencing, adjustable buck outputs, a 3.3V 100mA LDO rail, and a compact 20-WQFN 3x3 package. For engineers reviewing the RT6576DGQW(2) datasheet, RT6576DGQW(2) pinout, RT6576DGQW(2) application, or RT6576DGQW(2) equivalent, this device is widely used in notebook motherboards, embedded computing boards, battery-powered systems, industrial control modules, communication hardware, and compact multi-rail regulator platforms.
Technical Context
In notebook and embedded power systems, RT6576DGQW(2) controls two synchronous buck stages that generate adjustable rails for processors, chipsets, memory, or peripheral loads. The 300kHz and 355kHz switching frequencies support manageable inductor size while keeping converter timing predictable.
The device also provides two LDO outputs, including a 3.3V 100mA auxiliary rail, allowing the same IC to support both efficient switching power and low-current local supplies. Sequencing support helps coordinate rail startup order.
RT6576DGQW(2) is commonly used when a board needs a Richtek RT6576D orderable option with dual buck controllers, fixed auxiliary LDO rails, and 20-WQFN package compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Dual-channel synchronous buck controller with two LDO outputs. |
| Output Count | Four outputs. |
| Input Voltage Range | 5V to 25V. |
| Switching Frequency | 300kHz and 355kHz. |
| Buck Outputs | Two adjustable synchronous step-down controller rails. |
| LDO Output | 3.3V, 100mA auxiliary LDO rail. |
| Package | 20-WQFN 3x3 exposed-pad package. |
| Temperature | -40C to +85C operating range. |
Pinout & Package
The RT6576DGQW(2) pinout includes input supply, dual buck-controller drive pins, feedback and current-limit pins, LDO output pins, sequencing/status pins, and exposed-pad ground connections.
For PCB design, the high-current MOSFET gate-drive loops should be compact, feedback and current-sense traces should avoid switch-node noise, and the WQFN exposed pad should be tied to low-impedance thermal ground.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| VIN / VCC | Supply input for controller and regulator functions. |
| UGATE1 / LGATE1 | External MOSFET gate-drive pins for buck channel 1. |
| UGATE2 / LGATE2 | External MOSFET gate-drive pins for buck channel 2. |
| FB1 / FB2 | Feedback inputs for adjustable buck outputs. |
| CS / Current-Limit Pins | Current-limit or RDS(ON)-sense setup for protected buck operation. |
| LDO Outputs | Integrated 5V/3.3V or auxiliary linear regulator outputs. |
| PGOOD / SEQ | Power-good, sequencing, or status-control function. |
| GND / Exposed Pad | Ground and thermal return path for the WQFN package. |
Key Features
- Two synchronous buck controllers support adjustable system rails.
- Two LDO outputs provide auxiliary local supplies.
- 5V to 25V supply range suits battery and adapter-powered systems.
- 300kHz/355kHz operation balances efficiency and component size.
- Sequencing support coordinates multi-rail startup.
- 20-WQFN 3x3 package supports dense PCB layouts.
Applications
| Notebook Motherboards | Embedded Computing |
|---|---|
|
Use Scenario: Used in battery-powered computer power trees. IC Role: Controls dual buck rails and LDO outputs. Use Value: Supports compact multi-rail regulation. |
Use Scenario: Used around processors, chipsets, and memory rails. IC Role: Generates adjustable and fixed local supplies. Use Value: Improves rail integration. |
| Industrial Controllers | Communication Modules |
|
Use Scenario: Used in compact control electronics. IC Role: Provides sequenced buck and LDO outputs. Use Value: Supports reliable distributed power. |
Use Scenario: Used in network and interface hardware. IC Role: Supplies digital and auxiliary rails. Use Value: Reduces regulator count and PCB area. |
Equivalent & Alternatives
When evaluating a RT6576DGQW(2) equivalent, engineers should compare input range, output count, controller topology, LDO current, switching frequency, sequencing behavior, audio/noise mode options, package, and sourcing status.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RT6575AGQW | Richtek related dual buck controller with 5V/3.3V LDOs and different variant behavior. | Used in similar notebook and embedded rails. | Compare frequency, suffix, and audio-mode requirements. |
| RT6585BGQW | Richtek dual buck controller with two LDOs and higher 400kHz/475kHz switching pair. | Used in compact multi-rail systems. | Compare switching frequency, pinout, and output requirements. |
Compared with RT6575AGQW, RT6576DGQW(2) belongs to the RT6576C/D family with 300kHz/355kHz operation and its own orderable suffix behavior. RT6576DGQW(2) vs RT6585BGQW selection depends on switching frequency, exact pinout, output rails, and sequencing needs.
Quality
RT6576DGQW(2) should be sourced as original Richtek USA Inc. components through traceable supply channels. Quality checks may include package inspection, top-mark validation, solderability testing, startup sequencing verification, output-voltage accuracy testing, and thermal review.
Production validation should include dual-buck load transients, LDO regulation, power-good timing, soft-start behavior, light-load mode behavior, and layout-sensitive switching noise.
Availability
RT6576DGQW(2) available at Aetrix Electronics and is suitable for notebook, embedded, industrial, communication, battery-powered, and compact multi-rail power systems.
Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.
For production builds, confirming package, output configuration, lifecycle status, lead time, and sourcing continuity helps reduce procurement risk.
Manufacturer
Richtek Technology, now part of MediaTek, is a semiconductor manufacturer specializing in power-management ICs, DC-DC converters, LDO regulators, battery-management devices, LED drivers, and industrial, computing, communication, and consumer power solutions.
The RT6576C/D family is a Richtek dual synchronous buck controller plus LDO PMIC family for compact battery-powered and embedded multi-rail power systems.
FAQ
What is RT6576DGQW(2) used for?
RT6576DGQW(2) is used for dual-buck plus LDO multi-rail power management in battery-powered, notebook, industrial, and embedded systems.
Where can I find the RT6576DGQW(2) datasheet download?
The datasheet is available from Richtek or authorized distributor documentation.
What should be considered in RT6576DGQW(2) pinout design?
Designers should keep MOSFET gate-drive paths short, place feedback networks away from switching nodes, and provide strong exposed-pad grounding.
What are common RT6576DGQW(2) equivalent solutions?
Common candidates include RT6575AGQW and RT6585BGQW depending on frequency, output rails, pinout, and package.
RT6576DGQW(2) Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Richtek USA Inc.
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
- Number of Outputs:
- 4
- Frequency - Switching:
- 300kHz, 355kHz
- Voltage/Current - Output 1:
- Adjustable, Adjustable, Fixed, 2V ~ 5.5V
- Voltage/Current - Output 2:
- Adjustable, Adjustable, Fixed, 2V ~ 4V
- Voltage/Current - Output 3:
- Adjustable, Adjustable, Fixed, 3.3V, 100mA
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- Yes
- Voltage - Supply:
- 5V ~ 25V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-WQFN (3x3)
RT6576DGQW(2) FAQ
1.How can I place an order for RT6576DGQW(2) through Aetrix?
Please submit a Request for Quotation (RFQ) for RT6576DGQW(2) 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 RT6576DGQW(2) reliable?
The price and inventory of RT6576DGQW(2) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RT6576DGQW(2) is usually 5 days.
3.What payment methods are accepted for RT6576DGQW(2)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RT6576DGQW(2) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RT6576DGQW(2)?
RT6576DGQW(2) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RT6576DGQW(2) 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 RT6576DGQW(2)?
For technical support, including RT6576DGQW(2) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RT6576DGQW(2) requirements.
6.How does Aetrix verify that RT6576DGQW(2) is sourced from the original manufacturer or authorized distributors?
All RT6576DGQW(2) 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 RT6576DGQW(2) meets industry standards.
7.What is the process for return or replacement of RT6576DGQW(2)?
All RT6576DGQW(2) units undergo pre-shipment inspection (PSI). If there is an issue with RT6576DGQW(2), 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 RT6576DGQW(2) part is unused and in its original packaging.
Return procedure for RT6576DGQW(2):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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