LM22670-Q1 - Texas Instruments

LM22670-Q1 Step-Down Voltage Regulator

The LM22670 switching regulator provides all of the functions necessary to implement an efficient highvoltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 3 A of load current. Excellent line and load regulation along with high efficiency (> 90%.

Features

1 Features
•1 Wide Input Voltage Range: 4.5 V to 42 V
• Internally Compensated Voltage Mode Control
• Stable With Low ESR Ceramic Capacitors
• 120-mΩ N-channel MOSFET PFM Package
• 100-mΩ N-channel MOSFET SO PowerPAD™-8 Package
• Output Voltage Options: -ADJ (Outputs as Low as 1.285 V) -5.0 (Output Fixed to 5 V)
• ±1.5% Feedback Reference Accuracy
• 500-kHz Default Switching Frequency
• Adjustable Switching Frequency and Synchronization
•
  –40°C to 125°C Operating Junction Temperature Range
• Precision Enable Pin
• Integrated Boot-Strap Diode
• Integrated Soft-Start
• Fully WEBENCH® Enabled
• .