器件名称:
LM5010
功能描述:
High Voltage 1A Step Down Switching Regulator
文件大小:
453.78KB 共19页
简 介:
LM5010 High Voltage 1A Step Down Switching Regulator October 2004 LM5010 High Voltage 1A Step Down Switching Regulator General Description The LM5010 Step Down Switching Regulator features all the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying in excess of 1A load current. This high voltage regulator contains an N-Channel Buck Switch, and is available in thermally enhanced LLP-10 and TSSOP-14EP packages. The hysteretic regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The valley current limit detection is set at 1.25A. Additional features include: VCC under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle limiter. Features n n n n n n n n n n n n Input Voltage Range: 8V to 75V Valley Current Limit At 1.25A Switching Frequency Can Exceed 1 MHz Integrated N-Channel Buck Switch Integrated Startup Regulator No Loop Compensation Required Ultra-Fast Transient Response Operating Frequency Remains Constant With Load and Line Variations Maximum Duty Cycle Limited During Startup Adjustable Output Voltage Precision 2.5V Feedback Reference Thermal shutdown Typical Applications n n n n High Efficiency Point-Of-Load (POL) Regulator Non-Isolated Telecommunications Buck Regulato……
