ROHM Evaluation Board Buck Converter for BD70522GUL Buck Converter

The Rohm buck converter has a 180nA quiescent current and supports output current up to 500mA. The Constant ON-Time (COT) control with ULP (Ultra Low Power) mode provides a superior transient response and extends battery life by providing excellent light load efficiency below 10μA load range. The output voltage can be selected from 9 pre-set voltages by VSEL pins. When the input voltage gets close to the output voltage, the IC enters 100% ON mode where the switching operation stops.

• Discharge function on VOUT
• 100% ON mode for low input voltage
• 9 selectable output voltages (1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.2V and 3.3V)
• Power good output

• Energy harvesting
• Low-Iq applications without standby switcher
• Portable and wearable devices
• Smoke detectors
• Thermostats

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