TPS40091

www.ti.com PW RHD TPS40090 TPS40091 SLUS578B – OCTOBER 2003 – REVISED MAY 2006 HIGH-FREQUENCY, MULTIPHASE CONTROLLER Check for Samples: TPS40090, TPS40091 FEATURES 1 2 Two-, Three-, or Four-Phase Operation 5-V to 15-V Operating Range Programmable Switching Frequency Up to 1-MHz/Phase Current Mode Control With Forced Current Sharing(1) (1) Patent pending. 1% Internal 0.7-V Reference Resistive Divider Set Output Voltage True Remote Sensing Differential Amplifier Resistive or DCR Current Sensing Current Sense Fault Protection Programmable Load Line Compatible with UCC37222 Predictive Gate Drive™ Technology Drivers 24-Pin Space-Saving TSSOP Package 28-Pin QFN Package TPS40090: Binary Outputs TPS40091: 3-State Outputs APPLICATIONS Internet Servers Network Equipment Telecommunications Equipment DC Power Distributed Systems PWM1 21 PWM2 20 PWM3 19 PWM4 18 GND 17 RT 16 SS 15 CS1 CS2 CS3 CS4 CSCN ILIM DROOP REF COMP FB DIFFO VOUT PW PACKAGE (TOP VIEW) 1 24 2 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 EN/SYNC VIN BP5 PWM1 PWM2 PWM3 PWM4 GND RT SS PGOOD GNDS RHD PACKAGE (BOTTOM VIEW) 1 CS3 2 CS4 3 CSCN 4 ILIM 5 DROOP 6 REF 7 COMP CS2 28 CS1 27 NC 26 NC 25 EN/SYNC 24 VIN 23 BP5 22 8 FB 9 DIFFO 10 VOUT 11 NC 12 GNDS 13 PGOOD 14 NC DESCRIPTION The TPS4009x is a two-, three-, or four-phase programmable synchronous buck controller that is optimized for low-voltage, high-current applications powered by a...