DESCRIPTION

The US3036 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 applications that require a simple switching regulator from the 5V input where there is no other supply available. One type of such application is generating 2.5V standby from the dual 5V(5V and 5V standby) for the next generation processors.

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

■ Single input Switching Regulators such as Simple

5V to 2.5V switcher for RDRAM regulator