US3034中文資料友尼森數(shù)據(jù)手冊PDF規(guī)格書

DESCRIPTION

The US3034 IC provides an 8 pin 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.

FEATURES

■ 8 pin SOIC Switching Controller with

HICCUP Current Limiting Reduces Diode

Power Dissipation to Less than 1 of Normal

Operation

■ Soft Start Capacitor allows for smooth Output

Voltage ramp up

■ On board MOSFET driver

■ Fastest transient response of any controller

method. ( 0 to 100 Duty Cycle in 100 nS )

■ 1 internal voltage reference

■ Internal Under Voltage Lockout protects

MOSFET during start-up

APPLICATIONS

■ Dual supply low voltage processor applications,

such as: P55C?,CYRIX M2?, POWER PC? and

AMD K6?

■ Simple 5V to 3.3V switcher for Pentium with AGP

or Pentium II? applications