Datasheet Analog Devices LTC3618EFE#PBF — 数据表

LTC3618
Dual 4MHz, ±3A
Synchronous Buck Converter
for DDR Termination
Description Features
DDR Power Supply, Termination and Reference
High Efficiency: Up to 94%
Dual Outputs with ±3A Output Current Capability
2.25V to 5.5V Input Voltage Range
±1% Output Voltage Accuracy
VTT Output Voltage Down to 0.5V
Shutdown Current ≤1µA
VTTR = VDDQIN/2, VFB2 = VTTR
Adjustable Switching Frequency Up to 4MHz
Internal or External Compensation
Selectable 0°/90°/180° Phase Shift Between Channels
Internal or External Soft-Start for VDDQ, Internal
Soft-Start for VTT
n Power Good Status Outputs
n Low Profile 4mm × 4mm QFN-24 and TSSOP-24
Packages n n n n n n n n n n n n Applications The LTC®3618 is a dual synchronous step-down regulator
using a current mode, constant-frequency architecture. It
provides a complete DDR solution with an input voltage …