Datasheet Analog Devices LTC3407EDD-3#TRPBF — 数据表

LTC3407-3
Dual Synchronous,
1.8V/0.8A and 3.3V/0.8A
2.25MHz Step-Down DC/DC Regulator
DESCRIPTION FEATURES n Very Low Quiescent Current: Only 40μA
1.8V at 800mA/3.3V at 800mA
High Efficiency: Up to 95%
2.25MHz Constant Frequency Operation
High Switch Current: 1.2A on Each Channel
No Schottky Diodes Required
Low RDS(ON) Internal Switches: 0.35Ω
VIN: 3.3V to 5.5V
Current Mode Operation for Excellent Line
and Load Transient Response
Short-Circuit Protected
Low Dropout Operation: 100% Duty Cycle
Ultralow Shutdown Current: IQ < 1μA
Power-On Reset Output
Externally Synchronizable Oscillator
Small Thermally Enhanced 3mm × 3mm DFN Package APPLICATIONS The LTC®3407-3 is a dual, constant frequency, synchronous step down DC/DC converter. Intended for low power
applications, it operates from 3.3V to 5.5V input voltage
range and has a constant 2.25MHz switching frequency,
allowing the use of tiny, low cost capacitors and inductors …