The BL8501 consists of an oscillator, a PWM control circuit, a reference voltage unit, an error
amplifier, a soft-start circuit, a protection circuit, a PWM/VFM alternative circuit, a chip enable
circuit, and detecting input voltage circuit. A low ripple, high efficiency step-down DC-DC
converter can be easily composed of this IC with only several external components, or a
power-transistor, an inductor, a diode and capacitors. Output Voltage can be adjusted with external
resistors. |
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