LM5019 - Texas Instruments

LM5019 Buck Regulator

The LM5019 is a 100-V, 100-mA synchronous stepdown regulator with integrated high-side and low-side MOSFETs. The constant-on-time (COT) control scheme employed in the LM5019 requires no loop compensation, provides excellent transient response, and enables very low step-down ratios. The on-time varies inversely with the input voltage resulting in nearly const.

Features

•1 Wide 7.5-V to 100-V Input Range
• Integrated 100-mA High-Side and Low-Side Switches
• No Schottky Required
• Constant On-Time Control
• No Loop Compensation Required
• Ultra-Fast Transient Response
• Nearly Constant Operating Frequency
• Intelligent Peak Current Limit
• Adjustable Output Voltage From 1.225 V
• Precision 2% Feedback Reference
• Frequency Adjustable to 1 MHz
• Adjustable Undervoltage Lockout
• Remote Shutdown
• Thermal Shutdown
• Packages:
  – 8-Pin WSON
  – 8-Pin SO PowerPAD
• Create a Custom Design Using the LM5019 With the WEBENCH® Power Designer 2 Applications
• Smart Power M.