LM2743

Product Folder Order Now Technical Documents Tools & Software Support & Community LM2743 SNVS276I – APRIL 2004 – REVISED FEBRUARY 2019 LM2743 2.2-V to 16-V Input, voltage mode, synchronous buck controller with tracking 1 Features 1 Power stage input voltage from 1 V to 16 V Control stage input voltage from 3 V to 6 V Output voltage adjustable down to 0.6 V Power-good flag and shutdown Output overvoltage and undervoltage detection ±2% Feedback voltage accuracy over temperature Low-side adjustable current sensing Adjustable soft start Tracking and sequencing with shutdown and soft- start pins Switching frequency from 50 kHz to 1 MHz TSSOP-14 package Create a custom design using the LM2743 with the WEBENCH® Power Designer 2 Applications 3.3-V Buck regulation Cable modem, DSL and ADSL Laser Jet and ink jet printers Low-voltage power modules DSP, ASIC, core, and I/O 3 Description The LM2743 is a high-speed synchronous buck regulator controller with an accurate feedback voltage accuracy of ±2%. It can provide simple down conversion to output voltages as low as 0.6 V. Though the control sections of the IC are rated for 3 V to 6 V, the driver sections are designed to accept input supply rails as high as 16 V. The use of adaptive non-overlapping MOSFET gate drivers helps avoid potential shoot-through problems while maintaining high efficiency. The IC is designed for the more cost-effective option of driving only N-channel MOSFETs in both the hig...