SLVSDU5A April 2018 – November 2019 TPS57112C-Q1
PRODUCTION DATA.
The TPS57112C-Q1 device implements a cycle-by-cycle current limit. During each switching cycle, a comparison occurs between a voltage derived from the high-side switch current and the voltage on the COMP pin. When the instantaneous switch-current voltage intersects the COMP voltage, the high-side switch turns off. During overcurrent conditions that pull the output voltage low, the error amplifier responds by driving the COMP pin high, increasing the switch current. An internal clamp on the error amplifier output functions as a switch-current limit.