ZHCSH22C January 2009 – November 2017 LM3241
PRODUCTION DATA.
The current limit feature allows the LM3241 to protect itself and external components during overload conditions. In PWM mode, the cycle-by-cycle current limit is 1450 mA (typical). If an excessive load pulls the output voltage down to less than 0.3 V (typical), the NFET synchronous rectifier is disabled, and the current limit is reduced to 530 mA (typical). Moreover, when the output voltage becomes less than 0.15 V (typical), the switching frequency decreases to 3 MHz, thereby preventing excess current and thermal stress.