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L6920D

Step-up DC-DC, 0.6-5.5V in, 1A switch, 94% eff, sync rect, TSSOP-8

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Pieza del fabricante：

L6920D

Paquete：

TSSOP-8 (3.0 x 4.4 mm)

Marca：
Categorías de productos：
Compromiso de calidad
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Descripción

Productos

The L6920D from STMicroelectronics is a high-efficiency step-up DC-DC converter designed for battery-powered applications. Operating from 0.6V to 5.5V input, it can start up from 1.0V and delivers up to 1A output current. With a synchronous rectifier replacing the external Schottky diode, it achieves up to 94% efficiency. Housed in a TSSOP-8 package.

Especificaciones

Input Voltage 0.6V – 5.5V
Start-up Voltage 1.0V
Output Voltage 1.0V – 5.2V (adjustable)
Switch Current 1A
Efficiency Up to 94%
Switching Frequency 500 kHz
Corriente de reposo 10 uA (no-switch mode)
Paquete TSSOP-8
Temperatura de funcionamiento -25 to 85 C

Características

  • Ultra-low start-up voltage of 1.0V for single-cell battery operation
  • Internal synchronous rectifier eliminates external Schottky diode
  • Up to 94% efficiency for extended battery life
  • Adjustable output voltage from 1.0V to 5.2V
  • Low quiescent current of 10 uA in no-switch mode
  • Internal soft-start and current limit protection

Aplicaciones

  • Single-cell alkaline/NiMH battery-powered devices
  • Portable instruments and handheld devices
  • USB-powered peripherals
  • Wireless sensor nodes
  • MP3 players and portable audio

The L6920D from STMicroelectronics is a high-efficiency step-up DC-DC converter designed for battery-powered applications. It operates from input voltages as low as 0.6V and can start up from 1.0V, making it ideal for single-cell alkaline or NiMH battery systems. The integrated synchronous rectifier replaces the external Schottky diode, achieving up to 94% efficiency and reducing component count. With adjustable output from 1.0V to 5.2V, 500 kHz switching frequency, and only 10 uA quiescent current in no-switch mode, it maximizes battery life in portable applications.

The L6920D uses a current-mode PWM boost converter topology with an integrated N-channel MOSFET switch and P-channel synchronous rectifier. During the switch on-time, the inductor current ramps up, storing energy in the magnetic field. When the switch turns off, the synchronous rectifier conducts, transferring energy to the output capacitor and load. The current-mode control loop provides fast transient response and cycle-by-cycle current limiting. The synchronous rectifier replaces the conventional Schottky diode, reducing forward voltage drop and significantly improving efficiency.

Pin Nombre Tipo Función
1 SHDN Entrada Shutdown control (active low)
2 LBO Salida Battery low detector output
3 LBI Entrada Battery low detector input
4 GND Suelo Suelo
5 FB Entrada Feedback voltage (1.23V ref)
6 OUT Potencia Output / sync rect drain
7 SW Potencia Switch pin – inductor
8 VIN Potencia Input supply voltage
  • Single-cell battery devices: Boost 1.2V NiMH or 1.5V alkaline to 3.3V/5V
  • Portable instruments: Handheld devices requiring efficient low-voltage power
  • Wireless sensors: Battery-operated IoT nodes
  • USB peripherals: Boost 3.3V to 5V
Fabricante Número de pieza Paquete Notas
TI TPS61200 QFN-10 0.3V start, 1.3A sync boost
TI TPS61070 SOT-23-6 0.9V start, 600mA boost
Maxim MAX8815 TQFN-10 0.7V start, 1A sync boost
Richtek RT4812 WDFN-8 0.6V start, sync boost
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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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  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

  2. Bank Charges

     

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

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We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
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  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
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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.

3. General Order Rules & Notes

  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.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    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
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
  • 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;
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2. Classified Professional Packaging

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  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • 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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