TPS40040 Datasheet | Texas Instruments

FEATURES - 23 2.25-V to 5.5-V Input - Output Voltage from 0.6 V to 90% of VIN - High-Side Drive for N-Channel FET - Supports Pre-Biased Outputs - Adaptive Anti-Cross Conduction Gate Drive - 1%, 0.6-V Reference - Two Fixed Switching Frequency Versions, TPS40040 (300 k Hz) and TPS40041 (600 k Hz) - Three Selectable Short Circuit Protection Levels of 105 m V, 180 m V and 310 m V - Hiccup Restart from Faults - Voltage Mode Control - Active Low Enable - Thermal Shutdown Protection at 145C - 8-Pin, 3-mm x 3-mm SON with Ground Connection to Thermal Pad APPLICATIONS - Point of Load - Telemunications - DC to DC Modules - Set Top Boxes CONTENTS Device Ratings Electrical Characteristics Device Information Application Information Design Examples Additional References DESCRIPTION The TPS40040 and TPS40041 dc-to-dc controllers are designed to operate from a 2.25-V to 5.5-V input source. To reduce the number of external ponents, several operating parameters are fixed internally; namely, frequency, soft start time, and short circuit protection (SCP) levels. For example, the operating frequencies of TPS40040/1 are 300 k Hz/600 k Hz, respectively. SIMPLIFIED APPLICATION...