Datasheet Analog Devices LT3510IFE#PBF — 数据表

LT3510
Monolithic Dual Tracking
2A Step-Down Switching
Regulator
DESCRIPTION FEATURES The LT®3510 is a dual current mode PWM step-down
DC/DC converter with two internal 2.5A switches. Independent input voltage, feedback, soft-start and power
good pins for each channel simplify complex power
supply tracking/sequencing requirements. Wide Input Range: 3.1V to 25V
Two Switching Regulators with 2A Output Capability
Independent Supply to Each Regulator
Adjustable/Synchronizable Fixed Frequency
Operation from 250kHz to 1.5MHz
Antiphase Switching
Outputs Can be Paralleled
Independent, Sequential, Ratiometric or Absolute
Tracking Between Outputs
Independent Soft-Start and Power Good Pins
Enhanced Short-Circuit Protection
Low Dropout: 95% Maximum Duty Cycle
Low Shutdown Current: 10 L ⎜ LIM ⎟
⎝ VOUT ⎠ 2 Finally, there must be enough capacitance for good transient
performance. The last equation gives a good starting point.
Alternatively, you can start with one of the designs in this …