Product Summary

The IIRU3034CSTRPBF is a low cost switching controller with true short circuit protection all in a compact 8-pin surface mount package, providing a low cost switching solution for dual supply processor applications that require switching regulator for the 3.3V supply such as the applications with AGP on-board. Applications are (1)Dual supply low voltage processor applications, such as: P55C, CYRIX M2, POWER PC and AMD K6; (2)Simple 5V to 3.3V switcher for Pentium with AGP or Pentium II applications.

Parametrics

IRU3034CSTRPBF absolute maximum ratings: (1)V12 Supply Voltages : 20V; (2)Fb Pin Voltages : -0.3V To 5V; (3)Storage Temperature Range : -65 To 150°C; (4)Operating Junction Temperature : 0 To 150°C; (5)Supply Current: 10mA.

Features

IRU3034CSTRPBF features: (1)8-Pin SOIC switching controller with HICCUP current limiting reduces diode power dissipation to less than 1% of normal operation; (2)Soft-Start capacitor allows for smooth output voltage ramp up; (3)On-Board MOSFET Driver; (4)Fastest transient response of any controller method. (0 to 100% Duty Cycle in 100ns); (5)1% Internal Voltage Reference; (6)Internal Under-Voltage Lockout protects MOSFET during start-up.

Diagrams

IRU3034CSTRPBF pin connection