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LA5744 Dataheets PDF



Part Number LA5744
Manufacturers Sanyo Semicon Device
Logo Sanyo Semicon Device
Description Monolithic Linear IC Separately-Excited Step-Down Switching Regulator
Datasheet LA5744 DatasheetLA5744 Datasheet (PDF)

Ordering number : ENA0717C Monolithic Linear IC LA5744 Overview www.DataSheet4U.com Separately-Excited Step-Down Switching Regulator (Variable Type) The LA5744 is a separately-excited step-down switching regulator (variable type). Functions • High efficiency. • Time-base generator (300kHz) incorporated. • Current limiter incorporated. • Thermal shutdown circuit incorporated. • Soft start circuit incorporated. Specifications Maximum Ratings at Ta = 25°C Parameter Input voltage Maximum outp.

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Ordering number : ENA0717C Monolithic Linear IC LA5744 Overview www.DataSheet4U.com Separately-Excited Step-Down Switching Regulator (Variable Type) The LA5744 is a separately-excited step-down switching regulator (variable type). Functions • High efficiency. • Time-base generator (300kHz) incorporated. • Current limiter incorporated. • Thermal shutdown circuit incorporated. • Soft start circuit incorporated. Specifications Maximum Ratings at Ta = 25°C Parameter Input voltage Maximum output current SW pin application reverse voltage Allowable power dissipation Symbol VIN IO max VSW Pd max1 Pd max2 Operating temperature Storage temperature Junction temperature Topr Tstg Tj max No heat sink Infinite heat sink Conditions Ratings 30 3 -1 1.75 7.5 -30 to +125 -40 to +150 150 Unit V A V W W °C °C °C * Specified circuit board : 76.1×114.3×1.6mm3 : Copper foil ratio 60% FR4 Recommended Operating Conditions at Ta = 25°C Parameter Input voltage range Symbol VIN Conditions Ratings 4.5 to 28 Unit V Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. 52307 MS PC 20070522-S00004 / 42507 MS PC / 31407 MS PC / 30707 MS PC 20070215-S00001 No.A0717-1/5 LA5744 Electrical Characteristics at Ta = 25°C, VO = 5V Parameter Reference voltage Efficiency Switching frequency Line regulation Load regulation Output voltage temperature coefficient Ripple att.


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