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LT1766-5 Datasheet

LT1766-5 Datasheet

5.5V to 60V 1.5A, 200kHz Step-Down Switching Regulator
Part No.: LT1766-5
Page: 30 Pages
Size: 273 KB
Manufacturer: Linear Technology
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Views: 0
Update Time: 2024-12-17 21:05:22
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LT1766-5 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT1766EFE-5#PBF Tube 95 1766EFE-5 1 16 0°C ~ 125°C 16-Lead Plastic TSSOP  
LT1766EFE-5#TRPBF Reel 2500 1766EFE-5 1 16 0°C ~ 125°C 16-Lead Plastic TSSOP  
LT1766IFE-5#PBF Tube 95 1766IFE-5 1 16 -40°C ~ 125°C 16-Lead Plastic TSSOP  
LT1766IFE-5#TRPBF Reel 2500 1766IFE-5 1 16 -40°C ~ 125°C 16-Lead Plastic TSSOP  
LT1766EGN-5#PBF Tube 100 17665 1 16 0°C ~ 125°C 16-Lead Plastic SSOP  
LT1766EGN-5#TRPBF Reel 2500 17665 1 16 0°C ~ 125°C 16-Lead Plastic SSOP  
LT1766IGN-5#PBF Tube 100 1766I5 1 16 -40°C ~ 125°C 16-Lead Plastic SSOP  
LT1766IGN-5#TRPBF Reel 2500 1766I5 1 16 -40°C ~ 125°C 16-Lead Plastic SSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT1766-5 Datasheet(PDF)

LT1766-5 Datasheet(Picture)

LT1766-5 Features

  • Wide Input Range: 5.5V to 60V
  • 1.5A Peak Switch Current
  • Constant 200kHz Switching Frequency
  • Saturating Switch Design: 0.2Ω
  • Peak Switch Current Rating Maintained Over Full Duty Cycle Range
  • Low Effective Supply Current: 2.5mA
  • Low Shutdown Current: 25μA
  • 5V Fixed Output (LT1766-5)
  • Easily Synchronizable
  • Cycle-by-Cycle Current Limiting
  • Small 16-Pin SSOP and Thermally Enhanced TSSOP Packages

LT1766-5 Applications

  • High Voltage, Industrial and Automotive
  • Portable Computers
  • Battery-Powered Systems
  • Battery Chargers
  • Distributed Power Systems

LT1766-5 Description

The LT1766-5 are 200kHz monolithic buck switching regulators that accept input voltages up to 60V. A high efficiency 1.5A, 0.2Ω switch is included on the die along with all the necessary oscillator, control and logic circuitry. A current mode control architecture delivers fast transient response and excellent loop stability.

Special design techniques and a new high voltage process achieve high efficiency over a wide input range. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilizing a supply boost capacitor to saturate the power switch. Patented circuitry maintains peak switch current over the full duty cycle range. A shutdown pin reduces supply current to 25μA and the device can be externally synchronized from 228kHz to 700kHz with logic-level inputs.

The LT1766-5 are available in a 16-pin fused-lead SSOP package or a TSSOP package with exposed backside for improved thermal performance.

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