Dual, 550kHz, 2-Phase
Synchronous Step-Down
Switching Regulator
双,550 khz,二段式
同步降压
开关式稳压器
Dual, 180° Phased Controllers Reduce Required
Input Capacitance and Power Supply Induced Noise
n OPTI-LOOP® Compensation Minimizes COUT
n ±1% Output Voltage Accuracy
n Power Good Output Voltage Indicator
n Phase-Lockable Fixed Frequency 250kHz to 550kHz
n Dual N-Channel MOSFET Synchronous Drive
n Wide VIN Range: 3.5V to 36V Operation
n Very Low Dropout Operation: 99% Duty Cycle
n Adjustable Soft-Start Current Ramping
n Foldback Output Current Limiting
n Latched Short-Circuit Shutdown with Defeat Option
n Output Overvoltage Protection
n Remote Output Voltage Sense
n Low Shutdown IQ: 20μA
n 5V and 3.3V Regulators
n 3 Selectable Operating Modes: Constant-Frequency,
Burst Mode® Operation and PWM
n Available in 32-Pin 5mm × 5mm QFN and
28-Pin SSOP Packages
双180°阶段性控制器减少必需的
输入电容和电源感应噪声
n OPTI-LOOP®补偿最小化COUT
n输出电压精度±1%
电源输出电压指标
n Phase-Lockable固定频率250千赫到250千赫
n双n沟道MOSFET同步驱动
n VIN范围宽:3.5 v至36 v操作
n极低辍学操作:99%的关税
n可调软启动电流增加
n监听输出限流
n的短路与失败关闭选项
n输出过压保护
n远程输出电压
n关闭智商低:20μa
n 5 v和3.3 v的监管机构
n 3选择操作模式:频,
突发模态®操作和PWM
n在32-Pin QFN和5毫米×5毫米
28-Pin SSOP包