LM2743 Datasheet | Texas Instruments

Product Folder Order Now Technical Documents Tools & Software Support & munity 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 k Hz 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 high-side and low-side positions. It senses the low-side switch voltage drop for providing a simple, adjustable current...