备货utc台湾友顺电源ic uc3843

1、台湾友顺utc品牌原装现货。

2、全国范围支持支付宝（半个月发现假货可退货），珠三角支持快递代收。

3、2.5k/盘。

current mode pwm control circuits
 description
  the utc uc3842a/3843a provide the necessary functions to
implement off-line or dc to dc fixed frequency current mode ,
controlled switching circuits with minimal external components.
      features
*low start up current ( typical 0.12ma )
*automatic feed forward compensation
*pulse-by-pulse current limiting
*under-voltage lockout with hysteresis
*double pulse suppression
*high current totem pole output to drive mosfet directly
*internally trimmed band gap reference
*500khz operation