L3380 Overview
The L3380 is PWM step up DC-DC switching controller that operates from 0.9V. The low start up input voltage makes L3380 specially designed for powering portable equipment from one or two cells battery packs. This device consist of a soft start circuit, a reference voltage source, an error amplifier, an oscillator, a phase pensation, a PWM controller and an output drive circuit for driving external power transistor.
L3380 Key Features
- Pb-free plating product number: L3380L
- 0.9V low start-up Input voltage at 1mA load
- Low operation current
- 0.5uA low shutdown current
- Fix requency PWM at 100KHZ
- Built in PWM switching control circuit ,duty ratio is 0~83%
- Output voltage:0.1V step setting is available between 2.0V and 6.5V
- Soft start time: 6ms
- Shutdown function