DataSheetAll » Manufacturer » Linear Technology » LT8631 Datasheet
LT8631 Datasheet

LT8631 Datasheet

100V, 1A Synchronous Micropower Step-Down Regulator
Part No.: LT8631
Page: 26 Pages
Size: 1798 KB
Manufacturer: Linear Technology
Logo:
Views: 1
Update Time: 2023-10-23 10:26:43
DataSheet: Download

LT8631 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT8631EFE#PBF Tube 74 LT8631FE 1 20 -40°C ~ 125°C 20-Lead Plastic TSSOP  
LT8631EFE#TRPBF Reel 2500 LT8631FE 1 20 -40°C ~ 125°C 20-Lead Plastic TSSOP  
LT8631EFE#TRMPBF Reel 500 LT8631FE 1 20 -40°C ~ 125°C 20-Lead Plastic TSSOP  
LT8631IFE#PBF Tube 74 LT8631FE 1 20 -40°C ~ 125°C 20-Lead Plastic TSSOP  
LT8631IFE#TRPBF Reel 2500 LT8631FE 1 20 -40°C ~ 125°C 20-Lead Plastic TSSOP  
LT8631IFE#TRMPBF Reel 500 LT8631FE 1 20 -40°C ~ 125°C 20-Lead Plastic TSSOP  
LT8631HFE#PBF Tube 74 LT8631FE 1 20 -40°C ~ 150°C 20-Lead Plastic TSSOP  
LT8631HFE#TRPBF Reel 2500 LT8631FE 1 20 -40°C ~ 150°C 20-Lead Plastic TSSOP  
LT8631HFE#TRMPBF Reel 500 LT8631FE 1 20 -40°C ~ 150°C 20-Lead Plastic TSSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT8631 Datasheet(PDF)

LT8631 Datasheet(Picture)

LT8631 Features

  • Ultrawide Input Voltage Range: 3V to 100V
  • Output Voltage Range: 0.8V to 60V
  • Internal Synchronous Switches
  • Low Ripple Burst Mode® Operation:
    • 16μA IQ at 12VIN to 5VOUT Output Ripple <10mVP-P
    • 7μA IQ at 48VIN to 5VOUT Output Ripple <10mVP-P
  • Low Dropout: 99% Maximum Duty Cycle
  • Peak Current Mode Control
  • Fixed Frequency Operation: 100kHz to 1MHz
  • Synchronization Input
  • Programmable Undervoltage Lockout
  • Power Good Flag
  • Flexible Output Voltage Tracking
  • Short-Circuit Protection
  • Low Shutdown Current: 5μA
  • Tolerates Pin Open/Short Faults
  • Thermally Enhanced 20-Lead TSSOP with High Voltage Lead Spacing

LT8631 Applications

  • Telecom Supplies
  • Distributed Supply Regulation

LT8631 Description

The LT8631 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 1A. The wide input range of 3V to 100V makes the LT8631 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom supplies. Low ripple Burst Mode operation enables high efficiency operation down to very low output currents while keeping the output ripple below 10mVP-P. Resistor programmable 100kHz to 1MHz frequency range and synchronization capability enable optimization between efficiency and external component size. The soft-start feature controls the ramp rate of the output voltage, eliminating input current surge during start-up, while also providing output tracking. A power good flag signals when the output voltage is within ±7.5% of the regulated output. Undervoltage lockout can be programmed using the EN/UV pin. Shutdown mode reduces the total quiescent current to < 5μA.

The LT8631 is available in a 20-lead TSSOP package with exposed pad for low thermal resistance and high voltage lead spacing.

LT8631 Datasheet Related Parts

About DataSheetAll|Contact Us|Privacy Policy|Manufacturer List|Sitemap|XML|TXT
CopyRight © 2024 DataSheetAll(datasheetall.com)