Datasheet Analog Devices LT3740EDHC#TRPBF — 数据表

LT3740
Wide Operating Range,
Valley Mode, No RSENSE™
Synchronous Step-Down Controller
DESCRIPTION FEATURES n Wide VIN Range: 2.2V to 22V
Internal Boost Provides 6V Gate Drive
For VIN Down to 2.2V
No Sensing Resistor Required
Dual N-Channel MOSFET Synchronous Drive
Valley Current Mode Control
Optimized for High Step-Down Ratio
Power Good Output Voltage Monitor
0.8V Reference
Three Pin-Selected Current Limit Levels
Constant Switching Frequency: 300kHz
Programmable Soft-Start
Output Voltage Tracking
Available in 16-Pin 5mm × 3mm DFN The LT®3740 is a synchronous step-down switching
regulator controller that drives N-channel power MOSFET
stages. The controller uses valley current mode architecture
to achieve very low duty cycles with excellent transient
response without requiring a sense resistor.
The LT3740 includes an internal step-up converter to …