PWM Controller programmable frequency upto 500khz

The FAN7554 is a fixed frequency current-mode PWM controller. It is specially designed for off-line and DC-to-DC converter applications with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, an ON/OFF control, a high gain error amplifier, a current sensing comparator, and a high current totem-pole output. The FAN7554 has various protection functions such as an overload protection, an over current protection, and the over voltage protection, which includes built-in auto restart circuit. The FAN7554 is available in the 8-DIP package as well as the 8-SOP package.


  • Current Mode Control
  • Pulse by pulse current limiting
  • Low external components
  • Under-Voltage Lockout (UVLO): 9V/15V
  • Stand-by Current: Typ. 100µA
  • Power Saving Mode Current: Typ. 200µA
  • Operating Current: Typ. 7mA
  • Soft start
  • On/Off control
  • Over Load Protection (OLP)
  • Over Voltage Protection (OVP)
  • Over Current Protection (OCP)
  • Over Current Limit (OCL)
  • Operating Frequency up to 500kHz
  • 1A Totem-pole Output Current
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0 FAN7554 Full Production
ROHS Compliant as of 27-Feb-2006

MDIP 8L -  Details

PDF MDIP 8L  Drawing
Last Update: Jan 2015 PDF MDIP-8L, PACKING DRAWING
Last Update: May 2013 PDF DIP 8TUBE
Last Update: May 2014
Line 1$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code)

Line 2FAN7554

FIT 14.5 @55°C
change temp

RƟJA 147.8°C/W

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