集成电路芯片资料和参数

芯片型号:AX3002

功能特点

产品名称:150KHz, 2A PWM Buck DC/DC Converter 150KHz, 2A PWM降压DC/DC转换器

产品型号:AX3002

产品描述:

The AX3002 series are monolithic IC designed for a step-down DC/DC converter,

and own the ability of driving a 3A load without additional transistor. It saves board

space. The external shutdown function can be controlled by logic level and then come

into standby mode. The internal compensation makes feedback control having good

line and load regulation without external design. Regarding protected function,

thermal shutdown is to prevent over temperature operating from damage, and current

limit is against over current operating of the output switch. If current limit function

occurs and VFB is down below 0.5V, the switching frequency will be reduced.

The AX3002 series operates at a switching frequency of 150KHz thus allow

smaller sized filter components than what would be needed with lower frequency

switching regulators. The output version included fixed 3.3V, 5V, 12V, and an

adjustable type. The chips are available in a 5-Lead TO-263 and 5-Lead TO-220

packages.

参数:

Maximum Supply Voltage VCC +24 V

ON/OFF Pin Input Voltage VEN -0.3 to VCC V

Feedback Pin Voltage VFB -0.3 to VCC V

Output Voltage to Ground VOUT -0.8 V

Power Dissipation Internally limited PD ( TJ-TA ) / θJA W

Storage Temperature Range TST -65 to +150 ℃

Operating Junction Temperature Range TJ -40 to +125 ℃

Operating Supply Voltage VOP +4.5 to +22 V

Thermal Resistance from Junction to case θJC TO263=3.5,TO220=3.5 ℃/W

Thermal Resistance from Junction to ambient θJA TO263=25,TO220=25 ℃/W

封装:5-Lead TO-263 and 5-Lead TO-220