NS LM2743MTC-NS

降压降压3V ~ 6V

Overview

The LM2743MTC is a high-speed synchronous buck regulator controller with an accuratefeedback voltage accuracy of ±2%. It can provide simple down conversion to output voltages as lowas 0.6 V. Though the control sections of the IC are rated for 3 V to 6 V, the driver sections aredesigned to accept input supply rails as high as 16 V. The use of adaptive non-overlapping MOSFETgate drivers helps avoid potential shoot-through problems while maintaining high efficiency. The ICis designed for the more cost-effective option of driving only N-channel MOSFETs in both thehigh-side and low-side positions. It senses the low-side switch voltage drop for providing asimple, adjustable current limit.

Features include soft start, input undervoltage lockout (UVLO) and Power Good (based onboth undervoltage and overvoltage detection). In addition, the shutdown pin of the IC can be usedfor providing start-up delay, and the soft-start pin can be used for implementing precise tracking,for the purpose of sequencing with respect to an external rail.

Features

Bulk Package
Transistor Driver Output Type
Positive Output Configuration
Buck Topology
1 Number of Outputs
1 Output Phases
3V ~ 6V Voltage - Supply (Vcc/Vdd)
50kHz ~ 1MHz Frequency - Switching
80% Duty Cycle (Max)
Yes Synchronous Rectifier
No Clock Sync
Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking Control Features
Surface Mount Mounting Type