MAX4173H 电流检测放大器实现 MAX1692 PWM 降压调节器的电流限制。Maxim > App Notes > AMPLIFIER AND COMPARATOR CIRCUITS POWER-SUPPLY CIRCUITS
Keywords: current limit, current sense amplifier, buck regulator, pwm, step-down regulator Dec 01, 2000
APPLICATION NOTE 478
Current-Limit Circuit for the Buck Regulator
Abstract: This article demonstrates how to achieve current limit for the MAX1692 PWM step-down regulator by
using a MAX4173H current-sense amplifier.
Additional Information:
q Quick View Data Sheet for the MAX1692
q Quick View Data Sheet for the MAX4173
q Samples and Literature Order Form
q Technical Support: Power
A current limit can be added to a step-down converter by using a MAX4173H current-sense amplifier to inject
current into the feedback network. D1 sharpens the threshold of current ……
