TPS4005x Wide-Input Synchronous Buck Controller

1 Features

New products available
- LM5145 75-V synchronous buck controller with wide input voltage and duty cycle ranges
- LM5146 100-V synchronous buck DC/DC controller with wide duty-cycle range
Operating input voltage 8 V to 40 V
Input voltage feedforward compensation
< 1% internal 0.7-V reference
Programmable fixed-frequency up to 1-MHz voltage mode controller
Internal gate-drive outputs for high-side and synchronous N-channel MOSFETs
16-pin PowerPAD™ package (R_θJC = 2°C/W)
Thermal shutdown
Externally synchronizable
Programmable high-side sense short-circuit protection
Programmable closed-loop soft start
TPS40054 source only
TPS40055 source and sink
TPS40057 source and sink with V_O prebias