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LT8620EMSE#TRPBF

65V, 2A sync buck regulator, adj output, 2.5uA IQ, 2.2MHz, MSOP-16

4580

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制造商零件：

LT8620EMSE#TRPBF

包装：

MSOP-16 with exposed pad (5.00 x 4.40 x 0.90 mm body)

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说明

产品概览

The LT8620EMSE#TRPBF from Analog Devices is a 65 V, 2 A synchronous step-down regulator with ultralow 2.5 µA quiescent current in a 16-lead MSOP package. With an adjustable output from 0.97 V to 64.75 V, switching frequency from 200 kHz to 2.2 MHz, and 94% peak efficiency, it is designed for automotive, industrial, and general-purpose step-down power conversion.

主要规格

输入电压范围 3.4 V to 65 V
Output Voltage 0.97 V to 64.75 V (adjustable)
Max Output Current 2 A
Quiescent Current (Burst Mode) 2.5 µA
开关频率 200 kHz to 2.2 MHz (adjustable)
Efficiency 94% at 1 A, 12VIN to 5VOUT
Dropout 250 mV at 1 A
工作温度 -40°C to +125°C (E-grade)
包装 16-MSOP with exposed pad

特点

  • Wide 65 V input range for automotive and industrial applications
  • 2.5 µA IQ Burst Mode with output ripple below 10 mVp-p
  • Synchronous operation eliminates external Schottky diode
  • Fast 30 ns minimum switch-on time
  • Accurate 1 V enable/UVLO threshold
  • Internal compensation and programmable soft-start
  • PG flag with +/-9% output window

应用

  • Automotive and industrial power supplies
    • GSM burst power supplies
  • General-purpose step-down from high-voltage rails
  • Distributed power architectures
  • Battery-powered always-on systems

The LT8620EMSE#TRPBF is a 65 V, 2 A synchronous monolithic step-down switching regulator from Analog Devices with an adjustable output voltage from 0.97 V to 64.75 V. Accepting input voltages up to 65 V, it targets automotive, industrial, and telecom power applications. The integrated top and bottom power switches provide synchronous rectification, achieving up to 94% efficiency at 1 A from 12 V input. The ultralow 2.5 µA quiescent current in Burst Mode preserves battery life in always-on systems. The switching frequency is adjustable from 200 kHz to 2.2 MHz via an external resistor and can be synchronized to an external clock. Internal compensation with peak current mode control ensures stable operation with small inductors. The 30 ns minimum switch-on time enables high step-down ratios even at high frequencies. An accurate 1 V EN/UV threshold supports programmable undervoltage lockout, and the PG flag signals when the output is within +/-9% of the target. The E-grade device is rated for -40°C to +125°C.

The LT8620 operates as a constant-frequency, peak current mode synchronous buck converter. At each clock cycle, the top NMOS power switch turns on and inductor current ramps up until the peak current comparator trips, at which point the top switch turns off and the synchronous bottom NMOS switch turns on to allow inductor current to freewheel. The error amplifier compares the VFB pin voltage against a 0.97 V internal reference and adjusts the VC node to control the peak inductor current threshold. At light loads with SYNC low, Burst Mode operation delivers switching pulses in short bursts separated by sleep periods where all switching circuitry is shut down, reducing IQ to 2.5 µA. The BIAS pin can be connected to VOUT (3.3 V or above) to improve efficiency by powering internal circuitry from the output. Frequency foldback reduces the switching frequency during overload and startup to protect the inductor. The EN/UV pin with its precise 1 V threshold enables programmable input UVLO while reducing input current to 1 µA when disabled.

针脚 名称 类型 功能
1 BST 电源 Bootstrap capacitor for top switch driver
2 SW 输出 Switch node (inductor connection)
3 SW 输出 Switch node (inductor connection)
4 BIAS 输入 Internal regulator supply; connect to VOUT if >= 3.3 V
5 TR/SS 模拟 Soft-start capacitor for output ramp control
6 PG 输出 Power good flag (open-drain)
7 RT 模拟 Frequency set resistor to GND
8 同步 输入 Mode select: low = Burst, high = pulse-skip, clock = sync
9 VFB 输入 Feedback voltage sense (0.97 V reference)
10 EN/UV 输入 Enable / undervoltage lockout (1 V threshold)
11 INTVCC 电源 Internal regulator decoupling
12 VIN 电源 Input supply (3.4 V to 65 V)
13 VIN 电源 Input supply
14 北卡罗来纳州 - 无连接
15 接地 地面 Signal ground
16 接地 地面 Signal ground
17 GND (EP) 地面 Exposed pad; solder to PCB ground
  • Automotive 48 V/12 V Systems: Step-down from 48 V or 12 V battery to logic and sensor supply rails
  • Industrial 24 V/36 V Bus: Point-of-load conversion from industrial distribution bus
  • Telecom Power

    : -48 V (72 V max) to low-voltage conversion in telecom equipment

  • Always-On Battery Systems: Ultra-low IQ standby mode for battery-powered instrumentation
  • General-Purpose Step-Down: High-efficiency conversion from unregulated or wide-range input sources
模型 制造商 VIN IOUT IQ 包装 说明
LT8620IMSE#TRPBF 模拟器件公司 3.4-65 V 2 A 2.5 µA MSOP-16 I-grade, -40 to 125C
LT8610AEMSE#TRPBF 模拟器件公司 3.4-42 V 3.5 A 2.5 µA MSOP-16 Higher current, lower VIN
LTC3646EMSE#TRPBF 模拟器件公司 3.1-34 V 3 A 1.7 µA MSOP-16 Lower VIN, higher IOUT
TPS54060DRBR 德州仪器 4.5-60 V 0.5 A 0.9 µA VSON-8 Ultra-low IQ, lower current
MAX17503ATC+ 模拟器件公司 4.5-60 V 2.5 A 3.1 µA TDFN-12 Wider VIN, different package
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质量保证

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:
  • 汽车电子: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
  • 医疗设备: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

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.

联系我们

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

 

发货与付款

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.

1. Payment Terms

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.

  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

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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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  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
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  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
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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

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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.

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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

服务与包装

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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  • 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.
  • 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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