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RT6254AHGJ6F

4A 18V ACOT sync buck, 48/25mOhm FETs, 500kHz, TSOT-23-6

5805

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Pieza del fabricante：

RT6254AHGJ6F

Paquete：

TSOT-23-6 (FC) (2.9 x 1.6 x 0.9 mm, 0.95mm pitch, flip-chip)

Marca：
Categorías de productos：
Compromiso de calidad
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Descripción

Productos

The RT6254AHGJ6F from Richtek Technology is a 4A, 4.5V to 18V, 500kHz ACOT synchronous step-down converter in a TSOT-23-6 (FC) package. It features Advanced Constant On-Time (ACOT) control for ultrafast transient response, integrated 48mOhm/25mOhm MOSFETs, and 115uA quiescent current.

Especificaciones

Input Voltage Range 4.5V to 18V
Output Voltage Range 0.6V to 5V (adjustable)
Corriente de salida 4A maximum
Switching Frequency 500kHz
High-Side RDS(on) 48mOhm typical
Low-Side RDS(on) 25mOhm typical
Corriente de reposo 115uA typical
Current Limit 6.2A typical
Soft-Start 1.5ms internal
Temperatura de funcionamiento -40 to 85 C
Paquete TSOT-23-6 (FC)

Características

  • ACOT control architecture for ultrafast transient
  • 4.5V to 18V wide input range
  • 4A output current
  • Integrated 48mOhm/25mOhm MOSFETs
  • 500kHz nearly constant switching frequency
  • 115uA quiescent current
  • Power-save mode at light load
  • Power good indicator
  • Internal soft-start (1.5ms)
  • Cycle-by-cycle current limit
  • UVP, UVLO, and OTP protection

Aplicaciones

  • Set-top boxes
  • Portable TV
  • Access point routers
  • DSL modems
  • LCD TV power supplies

The RT6254AHGJ6F from Richtek is a 4.5-18V, 4A synchronous step-down converter using ACOT control in TSOT-23-6 (FC). Integrated 48mOhm/25mOhm MOSFETs provide high efficiency with 115uA quiescent current. ACOT architecture delivers ultrafast transient response while maintaining nearly constant 500kHz switching frequency. Features include power-save mode, power good, hiccup OCP, UVP, UVLO, and thermal shutdown.

Uses Richtek’s ACOT (Advanced Constant On-Time) control architecture. Unlike traditional constant on-time, ACOT adds an internal compensator that adjusts the on-time to maintain nearly constant switching frequency across line and load. The on-time modulator responds within one switching cycle to load transients, providing faster response than fixed-frequency current-mode controllers. At light loads, the device enters power-save mode (PSM) by skipping pulses to maintain efficiency.

Pin Nombre Tipo Función
1 ES Entrada Enable control (active high)
2 VIN Potencia Input supply (4.5-18V)
3 GND Suelo Power and signal ground
4 LX Salida Switch node (inductor connection)
5 BOOT Potencia Bootstrap capacitor for high-side driver
6 FB Entrada Feedback voltage (0.6V reference)
  • 12V to 3.3V/5V step-down for set-top box and router
  • LCD TV 12V to logic rail conversion
  • DSL modem POL power supply
  • Portable TV battery-powered buck regulator
  • General-purpose 4A buck from 5-18V input
Fabricante Número de pieza Paquete Notas
Richtek RT6254BHGJ6F TSOT-23-6 Variant with different PSM threshold
MPS MP1470GJ-Z TSOT-23-6 2A, 16V, similar package
TI TPS565201DDCR SOT-23-THIN 5A, 17V, higher current
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Garantía de calidad

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

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If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Envíos y pagos

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
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    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

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  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
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  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
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  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
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    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

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  1. MOQ & Sample Service

     

    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

  2. Packaging Standard

     

    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

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    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
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  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Servicio y embalaje

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
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  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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