LTC3776EGN#TRPBF/LINEAR
Dual 2-Phase, No RSENSE
TM,
Synchronous Controller for
DDR/QDR Memory Termination
双二段式,没有RSENSE
TM,
同步控制器

DDR内存终止/评估报告

No Current Sense Resistors Required
■ Out-of-Phase Controllers Reduce Required
Input Capacitance
■ VOUT2 Tracks 1/2 VREF
■ Symmetrical Source/Sink Output Current
Capability (VOUT2)
■ Spread Spectrum Operation (When Enabled)
■ Wide VIN Range: 2.75V to 9.8V
■ Constant Frequency Current Mode Operation
■ 0.6V ±1.5% Voltage Reference (VOUT1)
■ Low Dropout Operation: 100% Duty Cycle
■ True PLL for Frequency Locking or Adjustment
■ Internal Soft-Start Circuitry
■ Power Good Output Voltage Monitor
■ Output Overvoltage Protection
■ Micropower Shutdown: IQ = 9μA
■ Tiny Low Profile (4mm × 4mm) QFN and Narrow
SSOP Packages
不需要电流电阻感
■不同相的控制器减少必需的
输入电容
■1/2 VREF VOUT2曲目
■对称的输出电流源/汇
能力(VOUT2)
■扩频操作(启用时)
■VIN范围宽:2.75 v至9.8 v
■恒频电流模式操作
■0.6 v±1.5%基准电压(VOUT1)
■低辍学操作:100%的关税
■真正的锁相环的频率锁定或调整
■内部软启动电路
■电力输出电压监控好
■输出过压保护
■微功率关闭:智商= 9μa
■小低调(4毫米×4毫米)QFN和狭窄的
SSOP包