微源半导体

概述

The LP6303 is a 2A buck converter of 3-CH power management IC for applications powered by one Li-Ion battery or a DC 5V adapter. It integrates four synchronous buck converters and can provide high efficiency output at light load and heavy load operation. The internal compensation architecture simplifies the application circuit design. Besides, the independent enable control makes the designer have the greatest flexibility to optimize timing for power sequencing purposes. The LP6303 is available in a 24 pin TQFN 4x4 package.

应用

◆ Smart Phone
◆ IP Camera
◆ OTT
◆ Digital Camera

数据参数

输入电压(V)

2.5-5.5

输出电压(V)

0.6-5.5

FB电压（V）

0.6

电压精度

±2%

工作频率(Hz)

1.5M

最大输出电流(A)

输出通道数量

工作模式

Syn.

EN控制

轻负载模式

PFM/PWM

产品特征/功能

100% Duty,Internal Soft Start,OCP,SCP,OTP

封装

TQFN-24(4*4)

特征

◆ 2.2V to 5.5V Input Voltage Range
◆ Three Buck Converters
◆ Output Voltage Range: 0.6V to Vin
◆ Continuous Loading: 2A (Buck1), 2A (Buck2), 2A (Buck3)
◆ Fixed 1.5MHz Switching Frequency
◆ 100% Duty Cycle Low Dropout Operation
◆ <1uA Shutdown Current
◆ Independent Enable Control
◆ Internal Compensation
◆ Cycle-by-Cycle Current Limit
◆ Short Circuit Protection
◆ Auto Recovery OTP Protection
◆ Available in 24-pin 4mm x 4mm QFN Package