ML4866 Datasheet | Micro Linear

July 2000 ML4866- 3.3V Output DC- DC Step-Down Converter GENERAL DESCRIPTION The ML4866 is a high efficiency pulse width modulated (PWM) buck regulator designed for use in 5V systems or portable equipment that need a pact, efficienct 3.3V supply. It has a switching frequency of 120kHz and uses synchronous rectification to optimize power conversion efficiency. Unlike other solutions, the ML4866 requires no external diodes or FETs. The ML4866 can provide up to 500mA of output current, and operates over an input voltage range of 3.5V to 6.5V (3 to 4 cells or a 5 VDC supply). A plete switched mode power converter can be quickly and easily implemented with few external ponents. Thanks...