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Richtek USA Inc. RT6575AGQW
- Part No.:
- RT6575AGQW
- Manufacturer:
- Richtek USA Inc.
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
RT6575AGQW.pdf
- Description:
- IC 2CH CTRLR WITH LDO WQFN-20
- Quantity:
- Payment:
- Shipping:
Inventory:1,433
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Product details
Overview
RT6575AGQW from Richtek USA Inc. is a dual-channel synchronous DC-DC step-down controller with integrated 5V and 3.3V LDO regulators. The device is designed to generate multiple local rails for battery-powered systems, notebook motherboards, and compact embedded platforms.
As part of the RT6575 product family, RT6575AGQW combines two adjustable PWM buck controllers, fixed 5V/3.3V LDO outputs, 100mA LDO current capability, oscillator output for charge-pump applications, power-up sequencing, power-good output, and a 20-pin WQFN 3x3 package. For engineers reviewing the RT6575AGQW datasheet, RT6575AGQW pinout, RT6575AGQW application, or RT6575AGQW equivalent, this device is widely used in battery-powered systems, notebook computers, embedded computing boards, industrial modules, communication equipment, and compact multi-rail power architectures.
Technical Context
In battery-powered system power trees, RT6575AGQW uses two synchronous step-down controller channels to generate adjustable 2V to 5.5V rails, while the integrated fixed 5V and 3.3V LDO regulators provide auxiliary supplies.
The RT6575 family uses a constant-current ripple PWM control scheme without sense resistors and supports fast 100ns response to load transients. Light-load diode-emulation behavior improves efficiency, while C/D variants add audio-skipping behavior to keep switching frequency above the audio range.
RT6575AGQW is commonly used when a board needs the RT6575 rail architecture, WQFN-20L 3x3 footprint, and 5V/3.3V LDO support alongside dual buck-controller outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Dual-channel synchronous DC-DC step-down controller with 5V/3.3V LDOs. |
| Buck Outputs | Two PWM controller outputs adjustable from 2V to 5.5V. |
| LDO Outputs | Fixed 5V and 3.3V linear regulators. |
| LDO Current | Each linear regulator provides up to 100mA. |
| 3.3V Accuracy | 3.3V LDO supports 1% accuracy under 35mA. |
| Control Features | Power-up sequencing, power-good output, internal soft-start, soft discharge, oscillator output. |
| Package | WQFN-20L 3x3 package. |
Pinout & Package
The RT6575AGQW 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 adjustable buck controllers support multiple system rails.
- Fixed 5V and 3.3V LDO outputs reduce external regulator count.
- 100mA LDO current supports auxiliary and standby loads.
- Power-up sequencing and power-good output coordinate rail startup.
- Soft-start and soft-discharge improve controlled transitions.
- WQFN-20L 3x3 package supports compact 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 RT6575AGQW 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 |
|---|---|---|---|
| RT6585BGQW | Richtek dual buck controller plus LDO PMIC with higher 400kHz/475kHz switching behavior. | Used in notebook and embedded multi-rail systems. | Compare frequency, suffix, and pinout. |
| RT6576DGQW(2) | Richtek dual buck controller plus LDO PMIC with 300kHz/355kHz switching pair. | Used in similar battery-powered systems. | Compare switching frequency and orderable option. |
Compared with RT6585BGQW, RT6575AGQW is part of the RT6575 family with its own buck-control behavior and LDO rail structure. RT6575AGQW vs RT6576DGQW(2) selection depends on exact suffix, switching frequency, BOM marking, and WQFN pinout compatibility.
Quality
RT6575AGQW 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
RT6575AGQW 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 RT6575 family is a Richtek dual synchronous buck controller plus 5V/3.3V LDO family for battery-powered and notebook multi-rail power systems.
FAQ
What is RT6575AGQW used for?
RT6575AGQW is used for dual-buck plus LDO multi-rail power management in battery-powered, notebook, industrial, and embedded systems.
Where can I find the RT6575AGQW datasheet download?
The datasheet is available from Richtek or authorized distributor documentation.
What should be considered in RT6575AGQW 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 RT6575AGQW equivalent solutions?
Common candidates include RT6585BGQW and RT6576DGQW(2) depending on frequency, output rails, pinout, and package.
RT6575AGQW 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) (1)
- Number of Outputs:
- 3
- 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)
RT6575AGQW FAQ
1.How can I place an order for RT6575AGQW through Aetrix?
Please submit a Request for Quotation (RFQ) for RT6575AGQW 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 RT6575AGQW reliable?
The price and inventory of RT6575AGQW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RT6575AGQW is usually 5 days.
3.What payment methods are accepted for RT6575AGQW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RT6575AGQW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RT6575AGQW?
RT6575AGQW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RT6575AGQW 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 RT6575AGQW?
For technical support, including RT6575AGQW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RT6575AGQW requirements.
6.How does Aetrix verify that RT6575AGQW is sourced from the original manufacturer or authorized distributors?
All RT6575AGQW 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 RT6575AGQW meets industry standards.
7.What is the process for return or replacement of RT6575AGQW?
All RT6575AGQW units undergo pre-shipment inspection (PSI). If there is an issue with RT6575AGQW, 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 RT6575AGQW part is unused and in its original packaging.
Return procedure for RT6575AGQW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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