ZHCSPX4A February 2022 – April 2022 LM5152-Q1 , LM51521-Q1
PRODUCTION DATA
The light load switching mode is selected during the device configuration. The device is configured to skip mode when the MODE pin is floating or a resistor that is greater than 500 kΩ is connected between MODE and AGND during the device configuration. Once the device is configured to skip mode, the light load switching mode cannot be changed until the user reconfigures the device.
If the MODE pin voltage is less than 0.4 V (VMODE-FALLING) or grounded during the device configuration, the device is configured to diode emulation (DE) mode. If the MODE pin voltage is greater than 2.0 V (VMODE-RISING) or connected to VCC during the device configuration, the device is configured to forced PWM (FPWM) mode. If the device is configured to DE or FPWM mode, light load switching mode can be dynamically changed between DE and FPWM modes during operation without reconfiguration.