A7210
A7210 is PWM/PFM STEP-DOWN DC-DC CONVERTER manufactured by AiT Semiconductor.
AiT Semiconductor Inc.
.ait-ic.
PWM/PFM STEP-DOWN DC-DC CONVERTER
DESCRIPTION
The A7210 is a CMOS-based PWM step-down DC-DC Controller. The device offers the following advantages: lower supply current and wider operating input-voltage range.
The A7210 consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, a protection circuit, a PWM/PFM alternative circuit, a Chip Enable circuit, and under voltage lockout circuit. A low ripple, high efficiency step-down DC-DC converter can be easily posed of this IC. Output Voltage can be adjusted with external resistors.
The A7210 uses voltage type PWM/PFM mixed operation...