LN5067

Integrated Dual Step Down DC-DC LN5067 ■ General Description LN5067 series is a group of high efficiency synchronous-rectification type dual-output buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version and fixed output voltages（1.2V、1.8V、3.3V）. Automatic PWM/PFM mode operation increases efficiency and decreases output voltage ripple at light loads, further extending battery life. Switching frequency is internally set at 1.2MHz, allowing the use of small surface mount inductors and capacitors. 100% duty cycle provides low dropout operation. ■ Applications  Cellular and Smart Phones  PDAs  MP3/MP4 Player  Digital Still and Video Cameras  Microprocessors and DSP Core Supplies  Portable Instruments ■ Ordering Information LN5067 ①②③④⑤⑥⑦ ■ Features  High Efficiency: 92％  Input Voltage Range: 2.0 ~ 5.5V  Dual Output Current: 600mA  Shutdown Current: <1uA  Oscill...