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LTC3542EDC データシート (PDF) - Linear Integrated Systems

LTC3542EDC Datasheet PDF - Linear Integrated Systems
部品番号 LTC3542EDC
ダウンロード  LTC3542EDC ダウンロード

ファイルサイズ   199.33 Kbytes
ページ   16 Pages
メーカー  LINEAR [Linear Integrated Systems]
ホームページ  http://www.linearsystems.com
Logo LINEAR - Linear Integrated Systems
部品情報 500mA, 2.25MHz Synchronous Step-Down

LTC3542EDC Datasheet (PDF)

Go To PDF Page ダウンロード データシート
LTC3542EDC Datasheet PDF - Linear Integrated Systems

部品番号 LTC3542EDC
ダウンロード  LTC3542EDC Click to download

ファイルサイズ   199.33 Kbytes
ページ   16 Pages
メーカー  LINEAR [Linear Integrated Systems]
ホームページ  http://www.linearsystems.com
Logo LINEAR - Linear Integrated Systems
部品情報 500mA, 2.25MHz Synchronous Step-Down

LTC3542EDC データシート (HTML) - Linear Integrated Systems

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LTC3542EDC 製品詳細

DESCRIPTION
The LTC®3542 is a high efficiency monolithic synchronous buck converter using a constant frequency, current mode architecture. Supply current during operation is only 26μA, dropping to <1μA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3542 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. The output voltage is adjustable from 0.6V to VIN. Internal power switches are optimized to provide high efficiency and eliminate the need for an external Schottky diode.

FEATURES
■ High Efficiency: Up to 96%
■ High Peak Switch Current: 1000mA
■ Low Output Ripple (<20mVP-P Typical)
   Burst Mode Operation: Only 26μA
■ Very Low Quiescent Current: Only 26μA
■ 2.5V to 5.5V Input Voltage Range
■ 2.25MHz Constant Frequency Operation
■ 1MHz to 3MHz External Frequency Synchronization
■ Low Dropout Operation: 100% Duty Cycle
■ No Schottky Diode Required
■ Internal Soft-Start Limits Inrush Current
■ 0.6V Reference Allows Low Output Voltages
■ Shutdown Mode Draws <1μA Supply Current
■ ±2% Output Voltage Accuracy
■ Current Mode Operation for Excellent Line and Load
   Transient Response
■ Overtemperature Protected
■ Available in 6-Lead 2mm × 2mm DFN and Small TSOT

APPLICATIONS
■ Cellular Telephones
■ Wireless and DSL Modems
■ Digital Cameras
■ MP3 Players
■ PDAs and Other Handheld Devices




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同様の説明 - LTC3542EDC

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