Richtek USA Inc. RT6575BGQW
- Part No.:
- RT6575BGQW
- Manufacturer:
- Richtek USA Inc.
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
RT6575BGQW.pdf
- Description:
- IC 2CH CTRLR WITH LDO WQFN-20
- Quantity:
- Payment:

- Shipping:

Inventory:1,358
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Product details
Overview
RT6575BGQW from Richtek is a dual-channel synchronous DC-DC step-down controller with integrated 5 V and 3.3 V LDO functions for computing and embedded power systems.
As a dual-channel synchronous buck controller with integrated ldos solution, RT6575BGQW supports two synchronous buck controller channels, 5 V / 3.3 V LDO rails, enable control, and protection functions. For engineers reviewing the RT6575BGQW datasheet, RT6575BGQW pinout, RT6575BGQW application, or RT6575BGQW equivalent, this device is suitable for notebook computers, embedded controllers, industrial computing boards, and multi-rail system power designs.
Technical Context
In embedded electronic systems, RT6575BGQW typically operates as a dual buck controller for generating common computing rails from a system input supply.
The device architecture helps engineers manage power conversion efficiency, thermal performance, rail sequencing, output accuracy, and board-level reliability. PCB designers should verify input range, load-current budget, output-voltage configuration, thermal behavior, and layout guidance directly against the datasheet before production release.
RT6575BGQW is commonly used in industrial controllers, communication modules, portable instruments, processor boards, sensor platforms, and compact embedded devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Dual-channel synchronous buck controller with integrated LDOs |
| Input / Supply Range | Computing-system input range; verify exact limits in the datasheet. |
| Regulator Outputs | Two buck-controller outputs plus integrated 5 V and 3.3 V LDO outputs. |
| Switching / Control Behavior | 500 kHz / 600 kHz class synchronous controller operation depending on channel configuration. |
| Control and Monitoring | Enable, status, feedback, and monitoring functions support system-level power management. |
| Protection Features | Protection functions may include undervoltage lockout, current limiting, thermal shutdown, short-circuit protection, or fault reporting. |
| Package | WQFN-20 package. |
| Operating Environment | Verify suffix-specific operating temperature range in the datasheet. |
Pinout & Package
The RT6575BGQW pinout is optimized for compact power conversion, regulator feedback, enable control, status monitoring, and thermal grounding.
For PCB design, important practices include placing input/output capacitors close to the IC, using short high-current loops, routing feedback away from switching nodes, and connecting exposed pads to solid copper.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| VIN / Supply Pins | Input supply connections supporting regulator power and internal control circuitry. |
| Switching Nodes | High-frequency switching connections that should use compact power-loop routing. |
| Output Pins | Regulated output connections supplying downstream processor, memory, analog, or system rails. |
| Feedback / Sense Pins | Regulation feedback or sense nodes requiring quiet routing away from switching noise. |
| Enable / Control Pins | Logic inputs supporting power sequencing, shutdown, mode control, or system management. |
| Power-Good / Reset / Status Pins | Monitoring outputs or status pins used for processor supervision and fault handling. |
| GND / Exposed Pad | Ground and thermal return path requiring low-impedance PCB copper connection. |
Key Features
- Dual synchronous buck-controller channels support system rail generation.
- Integrated 5 V and 3.3 V LDOs reduce external component requirements.
- Enable and protection functions support robust computing power rails.
- Compact WQFN package supports dense motherboard layouts.
- Integrated protection and monitoring features support reliable embedded power operation.
- Surface-mount package supports compact industrial, consumer, or communication-system PCB layouts.
Applications
| Processor and Digital Systems | Industrial Embedded Electronics |
|---|---|
|
Use Scenario: Used in processor, ASIC, FPGA, DSP, or embedded controller platforms. IC Role: Provides regulated rails, sequencing, bias, or supervisory power functions. Use Value: Helps reduce discrete regulator count and simplify compact power-tree design. |
Use Scenario: Used in automation modules, gateways, control boards, measurement systems, and industrial communication devices. IC Role: Supplies stable power to digital, analog, memory, or peripheral subsystems. Use Value: Improves power integration, reliability, and repeatable production layout. |
| Portable and Consumer Products | Communication and Automotive-Style Platforms |
|
Use Scenario: Used in battery-powered electronics, handheld instruments, smart devices, and compact modules. IC Role: Manages efficient voltage conversion and low-power rail operation. Use Value: Supports smaller PCB area, better efficiency, and improved thermal behavior. |
Use Scenario: Used in networking modules, infotainment, automotive-style controllers, or connected edge devices. IC Role: Provides robust conversion, monitoring, and system power management. Use Value: Supports reliable operation across demanding supply and load conditions. |
Equivalent & Alternatives
When evaluating a RT6575BGQW equivalent, engineers should compare regulator topology, number of outputs, output-current capability, output-voltage options, package footprint, thermal behavior, control interface, protection features, and long-term sourcing requirements.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RT6575 | Related Richtek dual-controller device with different feature or rail configuration. | Used when system power requirements match the RT6575 family. | Choose based on rail requirements, package, and board qualification. |
| TPS51285B | TI dual buck controller for notebook and embedded rails with different vendor ecosystem. | Used where TI controller behavior and sourcing are preferred. | Verify rail structure, compensation, package, and protection behavior before substitution. |
Compared with RT6575, RT6575BGQW is optimized for the exact suffix, package, or configuration required by the target power tree. RT6575BGQW vs TPS51285B selection depends on integration level, rail count, output-current budget, noise target, thermal design, and PCB area.
Quality
RT6575BGQW should be sourced as original Richtek components through traceable and controlled supply channels. Quality verification procedures may include package inspection, top-mark validation, solderability testing, moisture-sensitivity handling review, electrical output verification, and functional testing on the target PCB.
Because the device is used in power-management applications, production validation should include startup behavior, output accuracy, load-transient response, thermal performance, protection behavior, and layout-sensitive noise or ripple checks. Traceable sourcing helps maintain reliable long-term operation and reduce counterfeit supply-chain risk.
Availability
RT6575BGQW available at Aetrix Electronics and is suitable for embedded and industrial power-management platforms requiring stable component availability and repeatable production support.
Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics manufacturers, communication-system developers, automotive electronics programs, and embedded product production.
For production builds, confirming package type, output-voltage option, load-current requirements, temperature grade, lead time, lifecycle status, and sourcing continuity helps reduce procurement risk and improve manufacturing stability.
Manufacturer
Richtek Technology is a semiconductor manufacturer focused on analog and power-management ICs for computing, consumer, industrial, communication, and embedded electronic applications.
For power systems, Richtek provides buck converters, controllers, LDOs, battery-management devices, and integrated regulator solutions used in compact and high-efficiency PCB designs.
FAQ
What is RT6575BGQW used for?
RT6575BGQW is used for regulated power conversion, rail generation, bias supply, sequencing, and embedded power management.
Where can I find the RT6575BGQW datasheet download?
The RT6575BGQW datasheet download is available from Richtek. The datasheet includes electrical specifications, package details, application information, operating limits, and PCB design guidance.
What should be considered in RT6575BGQW pinout design?
RT6575BGQW pinout design should prioritize short power loops, correct capacitor placement, exposed-pad grounding, feedback routing, enable sequencing, and thermal design.
What are common RT6575BGQW equivalent solutions?
Common RT6575BGQW equivalent alternatives include RT6575 and TPS51285B, depending on rail count, current requirements, package, control functions, and sourcing objectives.
Is RT6575BGQW suitable for production power designs?
Yes. RT6575BGQW can be used in production power systems when the datasheet limits, thermal design, component selection, layout requirements, and sourcing traceability are verified for the target application.
RT6575BGQW 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)
RT6575BGQW FAQ
1.How can I place an order for RT6575BGQW through Aetrix?
Please submit a Request for Quotation (RFQ) for RT6575BGQW 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 RT6575BGQW reliable?
The price and inventory of RT6575BGQW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RT6575BGQW is usually 5 days.
3.What payment methods are accepted for RT6575BGQW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RT6575BGQW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RT6575BGQW?
RT6575BGQW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RT6575BGQW 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 RT6575BGQW?
For technical support, including RT6575BGQW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RT6575BGQW requirements.
6.How does Aetrix verify that RT6575BGQW is sourced from the original manufacturer or authorized distributors?
All RT6575BGQW 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 RT6575BGQW meets industry standards.
7.What is the process for return or replacement of RT6575BGQW?
All RT6575BGQW units undergo pre-shipment inspection (PSI). If there is an issue with RT6575BGQW, 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 RT6575BGQW part is unused and in its original packaging.
Return procedure for RT6575BGQW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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