LM2676SX-5.0 5V 3A Buck Converter 8-40V Input 90% Efficiency TO-263 260kHz -40°C to +125°C

LM2676SX-5.0

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Features

andbull; New product available:andndash; LMR51430 4.5 to 36-V, 3-A, 500-kHz and 1.1 MHz synchronous converter

andbull; For faster time to market:andndash; TLVM13630 3 to 36-V, 3-A, 200-kHz to 2.2-MHz power module

andbull; Efficiency up to 94%

andbull; Simple and easy to design with (using off-the-shelf external components)

andbull; 150-mandOmega; DMOS output switch

andbull; 3.3-V, 5-V, 12-V fixed output and adjustable (1.2 V to 37 V) versions

andbull; 50-andmicro;A standby current when switched OFF

andbull; andplusmn;2% maximum output tolerance over full line and load conditions

andbull; Wide input voltage range: 8 V to 40 V

andbull; 260-kHz fixed frequency internal oscillator

andbull;andndash;40 to 125anddeg;C operating junction temperature range

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Applications

andbull; Communication module

andbull; Electricity meter

andbull; Calling button operating panel

andbull; Motor drives

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Description

The LM2676 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 3-A loads with excellent line and load regulation characteristics. High efficiency (andgt; 90%) is obtained through the use of a low ON resistance DMOS power switch. The series consists of fixed output voltages of 3.3 V, 5 V, and 12 V and an adjustable output version.

The SIMPLE SWITCHERandreg; power converter concept provides for a complete design using a minimum number of external components. A high fixed frequency oscillator (260 kHz) allows the use of physically smaller sized components. A family of standard inductors for use with the LM2676 are available from several manufacturers to greatly simplify the design process.

The LM2676 series also has built-in thermal shutdown, current limiting, and an ON and OFF control input that can power down the regulator to a low 50‑andmicro;A quiescent current standby condition. The output voltage is ensured to a andplusmn;2% tolerance. The clock frequency is controlled to within a andplusmn;11% tolerance.

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Information

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Drawing

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• High quality products --- our offers are 100% new and original, ROHS
• Competitive price --- good Purchase channels with good price.
• Professional service --- strict quality testing before the shipment, and perfect after-sales service after the purchase.
• Adequate inventory --- With the support of our strong Purchasing team,
• Fast delivery --- we will ship the goods within 1-3 working days after the payment confirmed.

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