JAJSL54 October 2021 TPS562212
PRODUCTION DATA
The device is in active mode when VEN is above the precision enable threshold voltage and VIN is above its respective UVLO level. The simplest way to enable the device is to float the EN pin. This allows self-start–up when the input voltage is in the operating range 4.2 V to 18 V.
Active mode depends on the load current and the configuration of the MODE pin.
When the MODE pin is connected with a 100-kΩ (typical) resistor or is floated (typical) to GND, FCCM operation is selected. Regardless what the load current is, the device works with PWM regulation with fixed switching frequency.
When MODE pin is connected with a 0-Ω (typical) or 47-kΩ (typical) resistor to GND, Eco-mode operation is selected. The device is in one of the following modes with different loading: