US3010/3010A
5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC
PRELIMINARY DATASHEET
FEATURES
Dual Layout Compatible wi...
US3010/3010A
5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC
PRELIMINARY DATASHEET
FEATURES
Dual Layout Compatible with SC1152 Designed to meet Intel specification of VRM8.2 & VRM8.3 for Pentium II™ On board DAC programs the output
voltage from 1.3V to 3.5V (US3010) & 1.8V to 3.5V for US3010A Loss less Short Circuit Protection Synchronous operation allows maximum efficiency Patented architecture allows fixed frequency operation as well as 100% duty cycle during dynamic load Over
Voltage Protection Output Soft Start High current totem pole driver for direct driving of the external Power
MOSFET Power Good function
DESCRIPTION
The US3010 family of controller ICs are specifically designed to meet Intel specification for Pentium II™ and Pentium Pro™ microprocessor applications as well as the next generation P6 family processors. These products feature a patented topology that in combination with a few external components as shown in the typical application circuit ,will provide in excess of 16A of output current for an on- board DC/DC converter while automatically providing the right output
voltage via the 5 bit internal DAC .These devices also feature, loss less current sensing by using the Rds-on of the high side Power
MOSFET as the sensing resistor, a Power Good window comparator that switches its open collector output low when the output is outside of a ±10% window and an OVP output. Other features of the device are ; Under
voltage lockout for both 5V and 12V supplies , an ...