Part LM2642
Description Two-Phase Synchronous Step-Down Switching Controller
Manufacturer Texas Instruments
Size 1.17 MB
Texas Instruments
LM2642

Overview

The LM2642 consists of two current mode synchronous buck regulator controllers with a switching frequency of 300kHz. The two switching regulator controllers operate 180° out of phase.

  • 2 Two Synchronous Buck Regulators
  • 180° Out of Phase Operation
  • 4.5V to 30V Input Range
  • Power Good Function Monitors Ch.1
  • 37µA Shutdown Current
  • 0.04% (typical) Line and Load Regulation Error
  • Current Mode Control With or Without a Sense Resistor
  • Independent Enable/Soft-start Pins Allow Simple Sequential Startup Configuration.
  • Configurable for Single Output Parallel Operation. (See Figure 3).
  • Adjustable Cycle-by-Cycle Current Limit