Vin = 2.5 - -6.5 v Iout = 800 ma Num。= 1 * 3 w关闭当前:1 ua灯光控制:PWM
包:SOT-23-5L
描述
LN2401系列是一组高效synchronous-rectification类型巴克使用恒定频率调节器,电流模式架构。PWM和PFM自动模式操作增加效率和减少输出电压纹波在轻负载,进一步延长电池寿命。内部切换频率设定在1.4 mhz,允许小表面安装电感和电容的使用。100%的关税周期提供低辍学操作。
特性
效率高:92%
输出电流:800 ma
关闭当前:< 1 ua
振荡频率:1.4 mhz
应用程序
LED驱动
MAIN PARAMETERS
Vin=2.5-6.5V Iout=800mA LED Num.=1*3W Shutdown Current:1uA Light Control:PWM
Package:SOT-23-5L
DESCRIPTION
LN2401 series is a group of high efficiency synchronous-rectification type buck regulator using a constant frequency, current mode architecture. 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 1.4MHz, allowing the use of small surface mount inductors and capacitors. 100% duty cycle provides low dropout operation.
FEATURES
High efficiency: 92％
Output current: 800mA
Shutdown current: <1uA
Oscillation frequency: 1.4MHz
APPLICATIONS
LED driver
