LTC1772CS6 - Constant Frequency Current Mode Step-Down DC/DC Controller in SOT-23

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Constant Frequency Current Mode Step-Down DC/DC Controller in SOT-23

Description:

The LTC®1772 is a constant frequency current mode stepdown DC/DC controller providing excellent AC and DC load and line regulation. The device incorporates an accurate undervoltage lockout feature that shuts down the LTC1772 when the input voltage falls below 2.0V.

The LTC1772 boasts a ±2.5% output voltage accuracy and consumes only 270µA of quiescent current. For applications where efficiency is a prime consideration, the LTC1772 is configured for Burst Mode operation, which enhances efficiency at low output current.

To further maximize the life of a battery source, the external P-channel MOSFET is turned on continuously in dropout (100% duty cycle). In shutdown, the device draws a mere 8µA. High constant operating frequency of 550kHz allows the use of a small external inductor.

The LTC1772 is available in a small footprint 6-lead SOT-23.

Applications:

■ High Efficiency: Up to 94%

■ High Output Currents Easily Achieved

■ Wide VIN Range: 2.5V to 9.8V

■ Constant Frequency 550kHz Operation

■ Burst ModeTM Operation at Light Load

■ Low Dropout: 100% Duty Cycle

■ 0.8V Reference Allows Low Output Voltages

■ Current Mode Operation for Excellent Line and Load Transient Response

■ Low Quiescent Current: 270µA

■ Shutdown Mode Draws Only 8µA Supply Current

■ ±2.5% Reference Accuracy

■ Tiny 6-Lead SOT-23 Package

Specifications:

Competitive Advantage:

Warranty :180days for all goods

Free shipping:Order over $600 win a free shipment fee:goods weight below 3Kg.

Mega Source Electronics stocks components ready to ship. Hard to find, obsolete and highly allocated integrated circuits and semiconductors are all can be found by us.

Mega Source Electronics has established a well-developed logistics system and global logistics network, which can guarantee our service very quick, convenient and efficient.

Mega Source Elec. Limited is a leading independent electronic components supplier and distributor since 2004.Mega Source Elec. Limited has been specialized in providing Original Equipment Manufacturers (OEMs) and Contract Electronic Manufacturers (CEMs) which is hard to find, obsolete and hot sales integrated circuits ,semiconductors,LCD displays,power bank ect.

With years’ development, we have had developed a complete electronic components supply and distribute system.
Through our importing and exporting of components all around the world, Mega Source Elec. Limited can quickly feedback and satisfy customers’ need.
Besides, we have had gained a great reputation in domestic and international market for our experience and market insight, as well as our up-front, proactive, and responsive approach to service, adequate inventory and unwavering commitment to quality.

How Mega Source Elec. Makes A Difference In The Distribution Of Electronic Components 

Quality                                                                 Inventory

At the heart of Mega Source Elec. lies a commitment       Mega Source Electronics stocks components are

to total customer satisfaction with a secure quality           ready to be shipped.

system .We have professional testing facilities and          Hard-to-find,obsolete and high demand integrated 

and experienced QC& engineering team.With advanced  circuit & LCD display ect. can be found by us.

equipment and experienced industry experts, Mega        

Source Elec. is committed to fulfilling the needs of

our customers .                                                                     

Team                                                           Price

Our sales representatives, customer service agents,       We offer the most competitive price for you ,

quality inspectors and component engineers strive to      saving your purchasing cost.

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Mega Source Electronics has established a well-               Our service is in strict compliance with global

developed logistics system and global logistics network,    environmental regulations and standards. We

which guarantees our service is very quick, convenient     resolve to fulfill social responsibility and pay

and efficient. attention to environmental protection.

Perfessional expert/import documentation work            Franchised distributor  

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More than 50 staff are in MEGA SOURCE.We are always here to fulfill your electronic components needs.

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ADDRESS：22B FuHongGe, FuXing Garden Building, FuXing Rd, FuTian Dist. Shenzhen 518033